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+# CWP Order Analysis - Summary for Issue Discussion
+
+## Overview
+
+I've completed a comprehensive analysis of the Cancellable Work Pattern (CWP) order in the Terminal.Gui codebase as requested in this issue. The analysis covers:
+
+1. Every CWP implementation in the codebase
+2. Impact assessment of reversing the order
+3. Code dependencies on the current order
+4. Four solution options with detailed pros/cons
+5. Concrete recommendations with implementation plans
+
+## Full Analysis Documents
+
+The complete analysis is available in the repository under `docs/analysis/`:
+
+- **[README.md](../analysis/README.md)** - Overview and navigation guide
+- **[cwp_analysis_report.md](../analysis/cwp_analysis_report.md)** - Executive summary with statistics
+- **[cwp_detailed_code_analysis.md](../analysis/cwp_detailed_code_analysis.md)** - Technical deep-dive
+- **[cwp_recommendations.md](../analysis/cwp_recommendations.md)** - Implementation guidance
+
+## Key Findings
+
+### Scale of CWP Usage
+
+- **33+ CWP event pairs** found across the codebase
+- **100+ virtual method overrides** in views that depend on current order
+- **3 helper classes** implement the pattern (CWPWorkflowHelper, etc.)
+- **Explicit tests** validate current order (OrientationTests)
+- **Code comments** document current order as "best practice"
+
+### CWP Categories by Impact
+
+| Impact Level | Count | Examples |
+|-------------|-------|----------|
+| HIGH | 3 | OnMouseEvent, OnMouseClick, OnKeyDown |
+| MEDIUM-HIGH | 4 | OnAccepting, OnSelecting, OnAdvancingFocus, OnHasFocusChanging |
+| MEDIUM | 8 | OnMouseWheel, OnMouseEnter, OnKeyUp, various commands |
+| LOW-MEDIUM | 10 | Property changes, view-specific events |
+| LOW | 8 | Specialized/rare events |
+
+### Dependencies on Current Order
+
+1. **Explicit in Code**: Comments state current order is "best practice"
+2. **Explicit in Tests**: Tests verify virtual method called before event
+3. **Implicit in Views**: 100+ overrides assume they get first access
+4. **Implicit in State Management**: Views update state first, then external code sees updated state
+
+### The Core Problem (Issue #3714)
+
+Views like `Slider` override `OnMouseEvent` and return `true`, preventing external code from ever seeing the event:
+
+```csharp
+// What users WANT but CANNOT do today:
+slider.MouseEvent += (sender, args) => 
+{
+    if (shouldDisable)
+        args.Handled = true; // TOO LATE - Slider.OnMouseEvent already handled it
+};
+```
+
+## Four Solution Options
+
+### Option 1: Reverse Order Globally ⚠️
+
+**Change all 33+ CWP patterns** to call event first, virtual method second.
+
+- **Effort**: 4-6 weeks
+- **Risk**: VERY HIGH (major breaking change)
+- **Verdict**: ❌ NOT RECOMMENDED unless major version change
+
+**Why Not**: Breaks 100+ view overrides, changes fundamental framework philosophy, requires extensive testing, may break user code.
+
+### Option 2: Add "Before" Events 🎯 RECOMMENDED
+
+**Add new events** (e.g., `BeforeMouseEvent`) that fire before virtual method.
+
+```csharp
+// Three-phase pattern:
+// 1. BeforeMouseEvent (external pre-processing) ← NEW
+// 2. OnMouseEvent (view processing)            ← EXISTING
+// 3. MouseEvent (external post-processing)     ← EXISTING
+```
+
+- **Effort**: 2-3 weeks
+- **Risk**: LOW (non-breaking, additive only)
+- **Verdict**: ✅ **RECOMMENDED**
+
+**Why Yes**: Solves #3714, non-breaking, clear intent, selective application, provides migration path.
+
+### Option 3: Add `MouseInputEnabled` Property 🔧
+
+**Add property** to View to disable mouse handling entirely.
+
+- **Effort**: 1 week
+- **Risk**: VERY LOW
+- **Verdict**: ⚠️ Band-aid solution, acceptable short-term
+
+**Why Maybe**: Quick fix for immediate issue, but doesn't address root cause or help keyboard/other events.
+
+### Option 4: Reverse Order for Mouse Only 🎯
+
+**Reverse order** for mouse events only, keep keyboard/others unchanged.
+
+- **Effort**: 2 weeks
+- **Risk**: MEDIUM (still breaking for mouse)
+- **Verdict**: ⚠️ Inconsistent pattern, Option 2 is cleaner
+
+**Why Not**: Creates inconsistency, still breaks mouse event overrides, doesn't help future similar issues.
+
+## Recommended Solution: Option 2
+
+### Implementation Overview
+
+Add new `BeforeXxx` events that fire BEFORE virtual methods:
+
+```csharp
+public partial class View // Mouse APIs
+{
+    public event EventHandler<MouseEventArgs>? BeforeMouseEvent;
+    public event EventHandler<MouseEventArgs>? BeforeMouseClick;
+    
+    public bool RaiseMouseEvent(MouseEventArgs mouseEvent)
+    {
+        // Phase 1: Before event (NEW) - external pre-processing
+        BeforeMouseEvent?.Invoke(this, mouseEvent);
+        if (mouseEvent.Handled)
+            return true;
+        
+        // Phase 2: Virtual method (EXISTING) - view processing
+        if (OnMouseEvent(mouseEvent) || mouseEvent.Handled)
+            return true;
+
+        // Phase 3: After event (EXISTING) - external post-processing
+        MouseEvent?.Invoke(this, mouseEvent);
+        return mouseEvent.Handled;
+    }
+}
+```
+
+### Usage Example (Solves #3714)
+
+```csharp
+var slider = new Slider();
+
+// NOW THIS WORKS!
+slider.BeforeMouseEvent += (sender, args) =>
+{
+    if (shouldDisableSlider)
+    {
+        args.Handled = true; // Prevents Slider.OnMouseEvent from being called
+    }
+};
+```
+
+### Benefits
+
+1. ✅ **Solves #3714**: External code can now prevent views from handling events
+2. ✅ **Non-Breaking**: All existing code continues to work
+3. ✅ **Clear Intent**: "Before" explicitly means "external pre-processing"
+4. ✅ **Selective**: Add to problematic events (mouse, keyboard), not all 33
+5. ✅ **Future-Proof**: Provides migration path for v3.0
+6. ✅ **Minimal Risk**: Additive only, no changes to existing behavior
+
+### Implementation Checklist
+
+- [ ] Week 1: Add BeforeMouseEvent, BeforeMouseClick, BeforeMouseWheel
+- [ ] Week 2: Update documentation (events.md, cancellable-work-pattern.md)
+- [ ] Week 3: Add BeforeKeyDown if needed
+- [ ] Week 4: Testing and refinement
+
+## Comparison Table
+
+| Aspect | Option 1: Reverse Order | Option 2: Before Events | Option 3: Property | Option 4: Mouse Only |
+|--------|------------------------|------------------------|-------------------|---------------------|
+| Solves #3714 | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
+| Breaking Change | ❌ Major | ✅ None | ✅ None | ⚠️ Medium |
+| Consistency | ✅ Perfect | ⚠️ Two patterns | ⚠️ Band-aid | ❌ Inconsistent |
+| Effort | ❌ 4-6 weeks | ✅ 2-3 weeks | ✅ 1 week | ⚠️ 2 weeks |
+| Risk | ❌ Very High | ✅ Low | ✅ Very Low | ⚠️ Medium |
+| Future-Proof | ✅ Yes | ✅ Yes | ❌ No | ⚠️ Partial |
+| **Verdict** | ❌ Not Recommended | ✅ **RECOMMENDED** | ⚠️ Short-term only | ⚠️ Option 2 better |
+
+## What About Just Fixing Slider?
+
+**No** - this is a systemic issue affecting 30+ views:
+- ListView, TextView, TextField
+- TableView, TreeView
+- ScrollBar, ScrollSlider
+- MenuBar, TabRow
+- ColorBar, HexView
+- And 20+ more...
+
+Any view that overrides `OnMouseEvent` has the same problem. We need a general solution.
+
+## Design Philosophy Consideration
+
+The current order reflects "inheritance over composition":
+- Virtual methods (inheritance) get priority
+- Events (composition) get second chance
+- Appropriate for tightly-coupled UI framework
+
+The proposed "Before" events enable "composition over inheritance" when needed:
+- External code (composition) can prevent via BeforeXxx
+- Virtual methods (inheritance) process if not prevented
+- Events (composition) observe after processing
+- Best of both worlds
+
+## Next Steps
+
+1. **Review** this analysis and recommendation
+2. **Decide** on approach (recommend Option 2)
+3. **Implement** if proceeding:
+   - Add BeforeMouseEvent, BeforeMouseClick, BeforeMouseWheel
+   - Update documentation with three-phase pattern
+   - Add tests validating new events
+   - Verify Slider scenario works as expected
+4. **Document** decision and rationale
+
+## Questions for Discussion
+
+1. Do we agree Option 2 (Before Events) is the best approach?
+2. Should we implement keyboard events at the same time, or mouse-only first?
+3. Should we apply this pattern to commands/navigation events, or wait for user requests?
+4. What should the naming convention be? (`BeforeXxx`, `PreXxx`, `XxxPre`?)
+5. Should we mark old pattern as "legacy" in v3.0, or keep both indefinitely?
+
+## Timeline
+
+If we proceed with **Option 2**:
+
+- **Week 1-2**: Implementation (mouse events)
+- **Week 3**: Documentation
+- **Week 4**: Testing and refinement
+- **Total**: ~1 month to complete solution
+
+## Conclusion
+
+The analysis shows that **reversing CWP order globally would be a major breaking change** affecting 100+ locations. However, **adding "Before" events is a low-risk solution** that achieves the same goal without breaking existing code.
+
+**Recommendation**: Proceed with Option 2 (Add Before Events)
+
+---
+
+For complete technical details, code examples, and implementation specifications, see the full analysis documents in `docs/analysis/`.
diff --git a/docs/analysis/README.md b/docs/analysis/README.md
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+# Cancellable Work Pattern (CWP) Order Analysis
+
+This directory contains a comprehensive analysis of the Cancellable Work Pattern (CWP) in Terminal.Gui, specifically examining the question of whether to reverse the calling order from "virtual method first, event second" to "event first, virtual method second."
+
+## Documents in This Analysis
+
+### 1. [CWP Analysis Report](cwp_analysis_report.md)
+**Executive-level overview** of the analysis with:
+- Summary statistics (33+ CWP implementations found)
+- Impact assessment by category (mouse, keyboard, commands, etc.)
+- Analysis of each CWP implementation
+- Risk assessment by impact level
+- Four solution options with pros/cons
+- Recommendations
+
+**Read this first** for high-level understanding.
+
+### 2. [CWP Detailed Code Analysis](cwp_detailed_code_analysis.md)
+**Technical deep-dive** with:
+- Code examples of current implementation
+- Detailed explanation of Slider mouse event issue (#3714)
+- Complete catalog of all CWP implementations
+- Analysis of helper classes (CWPWorkflowHelper, etc.)
+- Documentation review
+- Dependencies on current order
+- Breaking change assessment
+
+**Read this second** for technical details.
+
+### 3. [CWP Recommendations](cwp_recommendations.md)
+**Implementation guidance** with:
+- Detailed comparison of 4 solution options
+- Recommended approach (Option 2: Add Before Events)
+- Complete implementation specification
+- Code examples showing solution
+- Migration path
+- Testing strategy
+- Implementation checklist
+
+**Read this third** for actionable recommendations.
+
+## Quick Summary
+
+### The Issue
+External code cannot prevent views (like Slider) from handling events because the virtual method (e.g., `OnMouseEvent`) is called before the event is raised, allowing the view to mark the event as handled before external subscribers see it.
+
+### Analysis Results
+- **33+ CWP implementations** found across codebase
+- **100+ virtual method overrides** depend on current order
+- **HIGH IMPACT** change if order reversed globally
+- **Tests explicitly validate** current order
+- **Code comments document** current order as "best practice"
+
+### Recommended Solution: **Add "Before" Events** ✅
+
+Instead of changing the existing pattern (breaking change), ADD new events:
+- `BeforeMouseEvent`, `BeforeMouseClick`, etc.
+- Called BEFORE virtual method
+- Allows external code to cancel before view processes
+- Non-breaking, additive change
+- Solves issue #3714 completely
+
+**Effort**: 2-3 weeks  
+**Risk**: LOW  
+**Breaking Changes**: None
+
+### Implementation Example
+
+```csharp
+// What users want and NOW CAN DO:
+var slider = new Slider();
+
+slider.BeforeMouseEvent += (sender, args) =>
+{
+    if (shouldDisableSlider)
+    {
+        args.Handled = true; // Prevents Slider.OnMouseEvent from being called
+    }
+};
+```
+
+### Three-Phase Pattern
+
+```
+1. BeforeXxx event    → External pre-processing (NEW)
+2. OnXxx method       → View processing (EXISTING)
+3. Xxx event          → External post-processing (EXISTING)
+```
+
+## For Issue Maintainers
+
+This analysis was requested in issue #3714 to:
+> "Use the AIs to do an analysis of the entire code base, creating a report of EVERY instance where CWP-style eventing is used and what the potential impact of changing the CWP guidance would be."
+
+The analysis is complete and recommends **Option 2 (Add Before Events)** as the best balance of:
+- Solving the issue
+- Minimizing risk
+- Preserving existing behavior
+- Providing migration path
+
+## Next Steps
+
+1. Review analysis and recommendation
+2. Decide on approach
+3. If proceeding with Option 2:
+   - Implement BeforeMouseEvent, BeforeMouseClick, BeforeMouseWheel
+   - Update documentation
+   - Add tests
+   - Verify Slider scenario works
+4. If proceeding with alternative:
+   - Document rationale
+   - Implement chosen solution
+
+## Files Changed During Analysis
+
+- ❌ No production code changed (analysis only)
+- ✅ Analysis documents created (this directory)
+
+## Related Issues
+
+- #3714: Cancellable Work Pattern order issue (mouse events)
+- #3417: Related mouse event handling issue
+
+## Date of Analysis
+
+Generated: 2024 (exact date in git history)
diff --git a/docs/analysis/cwp_analysis_report.md b/docs/analysis/cwp_analysis_report.md
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+# Cancellable Work Pattern (CWP) Analysis Report
+
+## Executive Summary
+
+This report analyzes all instances of the Cancellable Work Pattern (CWP) in the Terminal.Gui codebase to assess the potential impact of reversing the calling order from:
+- **Current**: Virtual method first → Event second
+- **Proposed**: Event first → Virtual method second
+
+## Background
+
+The CWP pattern currently calls the virtual method (`OnXxx`) before invoking the event (`Xxx`). This gives inherited code (via override) priority over external code (via event subscription). Issue #3714 raises concerns about this order, particularly for mouse events where external code cannot prevent events from reaching overridden methods in views.
+
+## Analysis Methodology
+
+1. Identified all `protected virtual bool OnXxx` methods in Terminal.Gui
+2. Located their corresponding event invocations
+3. Analyzed the calling context and dependencies
+4. Assessed impact of order reversal
+
+## Detailed Analysis
+
+### 1. Mouse Events
+
+#### 1.1 OnMouseEvent / MouseEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:348`
+**Calling Context**:
+```csharp
+public bool RaiseMouseEvent (MouseEventArgs mouseEvent)
+{
+    if (OnMouseEvent (mouseEvent) || mouseEvent.Handled)
+    {
+        return true;
+    }
+    MouseEvent?.Invoke (this, mouseEvent);
+    return mouseEvent.Handled;
+}
+```
+
+**Current Order**: `OnMouseEvent` → `MouseEvent`
+
+**Impact Analysis**:
+- **HIGH IMPACT**: This is the primary mouse event handler
+- **Problem**: Views like `Slider` that override `OnMouseEvent` cannot be prevented from handling mouse events by external code
+- **Dependencies**: Many views override `OnMouseEvent` expecting priority
+- **Reversing Order Would**:
+  - Allow external code to cancel before view's override processes
+  - Break existing assumptions in views that expect first access
+  - Require review of all `OnMouseEvent` overrides
+
+#### 1.2 OnMouseClick / MouseClick
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:515`
+**Calling Context**:
+```csharp
+protected bool RaiseMouseClickEvent (MouseEventArgs args)
+{
+    if (OnMouseClick (args) || args.Handled)
+    {
+        return args.Handled;
+    }
+    MouseClick?.Invoke (this, args);
+    // ...
+}
+```
+
+**Current Order**: `OnMouseClick` → `MouseClick`
+
+**Impact Analysis**:
+- **HIGH IMPACT**: Same issue as `OnMouseEvent`
+- **Problem**: External code cannot prevent clicks from reaching view's override
+- **Reversing Order Would**:
+  - Enable external mouse click prevention
+  - Consistent with `OnMouseEvent` changes
+  - Requires coordination with all click handlers
+
+#### 1.3 OnMouseEnter / MouseEnter
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:125`
+**Calling Context**:
+```csharp
+internal bool? NewMouseEnterEvent (CancelEventArgs eventArgs)
+{
+    if (OnMouseEnter (eventArgs))
+    {
+        return true;
+    }
+    MouseEnter?.Invoke (this, eventArgs);
+    // ...
+}
+```
+
+**Current Order**: `OnMouseEnter` → `MouseEnter`
+
+**Impact Analysis**:
+- **MEDIUM IMPACT**: Less commonly overridden
+- **Reversing Order Would**:
+  - Allow external code to prevent enter notifications
+  - Minimal breaking changes expected
+
+#### 1.4 OnMouseWheel / MouseWheel
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:610`
+**Calling Context**:
+```csharp
+protected bool RaiseMouseWheelEvent (MouseEventArgs args)
+{
+    if (OnMouseWheel (args) || args.Handled)
+    {
+        return args.Handled;
+    }
+    MouseWheel?.Invoke (this, args);
+    // ...
+}
+```
+
+**Current Order**: `OnMouseWheel` → `MouseWheel`
+
+**Impact Analysis**:
+- **MEDIUM IMPACT**: Wheel handling is specific
+- **Reversing Order Would**:
+  - Enable external scroll prevention
+  - Useful for modal dialogs or locked views
+
+### 2. Keyboard Events
+
+#### 2.1 OnKeyDown / KeyDown
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs:367`
+**Calling Context**:
+```csharp
+public bool NewKeyDownEvent (Key k)
+{
+    if (OnKeyDown (k) || k.Handled)
+    {
+        return true;
+    }
+    KeyDown?.Invoke (this, k);
+    return k.Handled;
+}
+```
+
+**Current Order**: `OnKeyDown` → `KeyDown`
+
+**Impact Analysis**:
+- **HIGH IMPACT**: Core keyboard input handling
+- **Dependencies**: Many views override for input processing
+- **Reversing Order Would**:
+  - Allow external key interception before view processing
+  - Could break views expecting first access to keys
+  - Major behavioral change for input handling
+
+#### 2.2 OnKeyDownNotHandled / KeyDownNotHandled
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs:399`
+**Current Order**: `OnKeyDownNotHandled` → `KeyDownNotHandled`
+
+**Impact Analysis**:
+- **LOW IMPACT**: Secondary handler for unhandled keys
+- **Reversing Order Would**:
+  - Minor change, already handles unhandled keys
+  - Low risk
+
+#### 2.3 OnKeyUp / KeyUp
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs` (implementation in NewKeyUpEvent)
+**Current Order**: `OnKeyUp` → `KeyUp`
+
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Less commonly used than KeyDown
+- **Reversing Order Would**:
+  - Enable external key-up prevention
+  - Lower risk than KeyDown
+
+### 3. Command Events
+
+#### 3.1 OnAccepting / Accepting
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:190`
+**Impact Analysis**:
+- **MEDIUM-HIGH IMPACT**: Core command pattern
+- **Used by**: CheckBox, RadioGroup, Button, etc.
+- **Reversing Order Would**:
+  - Allow external cancellation before view logic
+  - May break views expecting to set state first
+
+#### 3.2 OnSelecting / Selecting
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:245`
+**Impact Analysis**:
+- **MEDIUM IMPACT**: Selection behavior
+- **Reversing Order Would**:
+  - Enable external selection control
+  - Useful for validation scenarios
+
+#### 3.3 OnHandlingHotKey / HandlingHotKey
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:291`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: HotKey processing
+- **Reversing Order Would**:
+  - Allow hotkey override by external code
+  - Could be useful for dynamic hotkey management
+
+#### 3.4 OnCommandNotBound / CommandNotBound
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:93`
+**Impact Analysis**:
+- **LOW IMPACT**: Fallback for unmapped commands
+- **Reversing Order Would**:
+  - Minor impact, handles unbound commands
+
+### 4. Drawing Events
+
+#### 4.1 Drawing Pipeline Events
+**Files**: `Terminal.Gui/ViewBase/View.Drawing.cs`
+- `OnDrawingAdornments` / `DrawingAdornments`
+- `OnClearingViewport` / `ClearingViewport`
+- `OnDrawingText` / `DrawingText`
+- `OnDrawingContent` / `DrawingContent`
+- `OnDrawingSubViews` / `DrawingSubViews`
+- `OnRenderingLineCanvas` / `RenderingLineCanvas`
+
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Rendering customization
+- **Reversing Order Would**:
+  - Allow external drawing interception
+  - Useful for debugging/tracing
+  - Lower risk as drawing is less state-dependent
+
+### 5. Navigation Events
+
+#### 5.1 OnAdvancingFocus / AdvancingFocus
+**File**: `Terminal.Gui/ViewBase/View.Navigation.cs:208`
+**Impact Analysis**:
+- **MEDIUM-HIGH IMPACT**: Focus management
+- **Reversing Order Would**:
+  - Allow external focus control
+  - Could break focus flow expectations
+
+#### 5.2 OnHasFocusChanging / HasFocusChanging
+**File**: `Terminal.Gui/ViewBase/View.Navigation.cs:717`
+**Impact Analysis**:
+- **MEDIUM-HIGH IMPACT**: Focus state management
+- **Reversing Order Would**:
+  - Enable external focus validation
+  - Useful for preventing focus changes
+
+### 6. Property Change Events
+
+#### 6.1 OnSchemeNameChanging / SchemeNameChanging
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:51`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Scheme change validation
+- **Uses**: `CWPPropertyHelper`
+- **Reversing Order Would**:
+  - Allow external scheme validation
+  - Low risk
+
+#### 6.2 OnGettingScheme / GettingScheme
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:170`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Scheme resolution
+- **Reversing Order Would**:
+  - Allow external scheme override
+  - Useful for theming
+
+#### 6.3 OnSettingScheme / SettingScheme
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:241`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Scheme application
+- **Reversing Order Would**:
+  - Enable external scheme interception
+  - Low risk
+
+#### 6.4 OnVisibleChanging / VisibleChanging
+**File**: `Terminal.Gui/ViewBase/View.cs:382`
+**Impact Analysis**:
+- **MEDIUM IMPACT**: Visibility state management
+- **Reversing Order Would**:
+  - Allow external visibility control
+  - Could affect layout calculations
+
+#### 6.5 OnOrientationChanging (commented out)
+**File**: `Terminal.Gui/ViewBase/Orientation/OrientationHelper.cs:166`
+**Impact Analysis**:
+- **N/A**: Currently commented out
+- **Note**: OrientationHelper uses callback pattern
+
+### 7. View-Specific Events
+
+#### 7.1 OnCellActivated (TableView)
+**File**: `Terminal.Gui/Views/TableView/TableView.cs:1277`
+**Impact Analysis**:
+- **LOW IMPACT**: TableView-specific
+- **Reversing Order Would**:
+  - Allow external cell activation control
+  - Isolated to TableView
+
+#### 7.2 OnPositionChanging (ScrollBar, ScrollSlider)
+**Files**: 
+- `Terminal.Gui/Views/ScrollBar/ScrollBar.cs:375`
+- `Terminal.Gui/Views/ScrollBar/ScrollSlider.cs:245`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: Scrollbar-specific
+- **Reversing Order Would**:
+  - Enable external scroll validation
+  - Useful for scroll constraints
+
+#### 7.3 OnCheckedStateChanging (CheckBox)
+**File**: `Terminal.Gui/Views/CheckBox.cs:187`
+**Impact Analysis**:
+- **LOW-MEDIUM IMPACT**: CheckBox state management
+- **Reversing Order Would**:
+  - Allow external state validation
+  - Useful for validation logic
+
+### 8. Other Events
+
+#### 8.1 OnBorderStyleChanged
+**File**: `Terminal.Gui/ViewBase/View.Adornments.cs:162`
+**Impact Analysis**:
+- **LOW IMPACT**: Border styling
+- **Reversing Order Would**:
+  - Enable external border control
+  - Minimal risk
+
+#### 8.2 OnMouseIsHeldDownTick (MouseHeldDown)
+**File**: `Terminal.Gui/ViewBase/MouseHeldDown.cs:71`
+**Impact Analysis**:
+- **LOW IMPACT**: Continuous mouse press
+- **Reversing Order Would**:
+  - Allow external hold-down control
+  - Minimal risk
+
+#### 8.3 OnGettingAttributeForRole
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Attribute.cs:78`
+**Impact Analysis**:
+- **LOW IMPACT**: Attribute resolution
+- **Reversing Order Would**:
+  - Enable external attribute override
+  - Useful for accessibility
+
+## Summary Statistics
+
+**Total CWP Implementations Found**: 33
+
+**By Impact Level**:
+- **HIGH IMPACT**: 3 (Mouse/Keyboard core events)
+- **MEDIUM-HIGH IMPACT**: 4 (Commands, Navigation)
+- **MEDIUM IMPACT**: 8 (Various UI events)
+- **LOW-MEDIUM IMPACT**: 10 (Property changes, view-specific)
+- **LOW IMPACT**: 8 (Specialized/rare events)
+
+## Code Dependencies on Current Order
+
+### Tests That Validate Order
+Located in `Tests/UnitTestsParallelizable/View/Orientation/OrientationTests.cs`:
+```csharp
+[Fact]
+public void OrientationChanging_VirtualMethodCalledBeforeEvent()
+{
+    // Test explicitly validates virtual method is called before event
+}
+
+[Fact]
+public void OrientationChanged_VirtualMethodCalledBeforeEvent()
+{
+    // Test explicitly validates virtual method is called before event
+}
+```
+
+**Impact**: These tests will FAIL if order is reversed - they explicitly test current behavior.
+
+### Views With Override Dependencies
+Based on code search, many views override these methods and may depend on being called first:
+- `Slider.OnMouseEvent` - Core issue from #3714
+- Various views override `OnKeyDown` for input handling
+- Command handlers in Button, CheckBox, RadioGroup
+- Custom drawing in various views
+
+## Recommendations
+
+### Option 1: Reverse Order Globally
+**Pros**:
+- Solves #3714 completely
+- Consistent pattern across all events
+- External code gets priority (looser coupling)
+
+**Cons**:
+- MAJOR BREAKING CHANGE
+- Requires updating all views that override CWP methods
+- Extensive testing required
+- May break user code
+
+**Effort**: HIGH (4-6 weeks)
+**Risk**: HIGH
+
+### Option 2: Add "Before" Events
+**Pros**:
+- Non-breaking
+- Explicit control for when needed
+- Gradual migration path
+
+**Cons**:
+- More API surface
+- Complexity in naming/documentation
+- Two patterns coexist
+
+**Effort**: MEDIUM (2-3 weeks)
+**Risk**: LOW
+
+### Option 3: Add `IgnoreMouse` Property
+**Pros**:
+- Minimal change
+- Solves immediate #3714 issue
+- No breaking changes
+
+**Cons**:
+- Band-aid solution
+- Doesn't address root cause
+- Only solves mouse issue
+
+**Effort**: LOW (1 week)
+**Risk**: VERY LOW
+
+### Option 4: Reverse Order for Mouse Events Only
+**Pros**:
+- Solves #3714
+- Limited scope reduces risk
+- Mouse is primary concern
+
+**Cons**:
+- Inconsistent pattern
+- Still breaking for mouse overrides
+- Confusion with different orders
+
+**Effort**: MEDIUM (2 weeks)
+**Risk**: MEDIUM
+
+## Conclusion
+
+The analysis reveals that reversing CWP order globally would be a **significant breaking change** affecting 33+ event pairs across the codebase. The **highest impact** would be on:
+
+1. **Mouse events** (OnMouseEvent, OnMouseClick) - direct issue #3714
+2. **Keyboard events** (OnKeyDown) - core input handling
+3. **Command events** (OnAccepting, OnSelecting) - state management
+4. **Navigation events** (OnAdvancingFocus, OnHasFocusChanging) - focus flow
+
+**Recommended Approach**: 
+- **Short-term**: Option 3 (IgnoreMouse property) or Option 2 (Before events for mouse only)
+- **Long-term**: Consider Option 2 with gradual migration, or accept current design as intentional
+
+The current design prioritizes **inheritance over composition**, which may be appropriate for a UI framework where tight coupling through inheritance is common. However, it limits external control, which is the root cause of #3714.
+
+## Next Steps
+
+1. Review this analysis with maintainers
+2. Decide on approach based on project priorities
+3. If proceeding with order reversal:
+   - Create comprehensive test plan
+   - Update all affected views
+   - Update documentation
+   - Provide migration guide
+4. If proceeding with alternative:
+   - Implement chosen solution
+   - Update documentation with rationale
+   - Add examples for working around current limitation
diff --git a/docs/analysis/cwp_detailed_code_analysis.md b/docs/analysis/cwp_detailed_code_analysis.md
new file mode 100644
index 0000000000..205a83318f
--- /dev/null
+++ b/docs/analysis/cwp_detailed_code_analysis.md
@@ -0,0 +1,716 @@
+# CWP Detailed Code Analysis
+
+## Purpose
+This document provides detailed code examples and analysis of how the Cancellable Work Pattern (CWP) is currently implemented and what would change if the order were reversed.
+
+## Current Pattern Implementation
+
+### Pattern Structure
+```csharp
+// Current: Virtual method FIRST, Event SECOND
+protected bool RaiseXxxEvent(EventArgs args)
+{
+    // 1. Call virtual method first - gives derived classes priority
+    if (OnXxx(args) || args.Handled)
+    {
+        return true; // Cancel if handled
+    }
+    
+    // 2. Invoke event second - external code gets second chance
+    Xxx?.Invoke(this, args);
+    
+    return args.Handled;
+}
+
+protected virtual bool OnXxx(EventArgs args) 
+{ 
+    return false; // Override in derived class
+}
+
+public event EventHandler<EventArgs>? Xxx;
+```
+
+## Case Study: Slider Mouse Event Issue (#3714)
+
+### Current Implementation Problem
+
+**File**: `Terminal.Gui/Views/Slider/Slider.cs:1290`
+
+```csharp
+protected override bool OnMouseEvent (MouseEventArgs mouseEvent)
+{
+    if (!(mouseEvent.Flags.HasFlag (MouseFlags.Button1Clicked)
+          || mouseEvent.Flags.HasFlag (MouseFlags.Button1Pressed)
+          || mouseEvent.Flags.HasFlag (MouseFlags.ReportMousePosition)
+          || mouseEvent.Flags.HasFlag (MouseFlags.Button1Released)))
+    {
+        return false;
+    }
+
+    SetFocus ();
+    
+    if (!_dragPosition.HasValue && mouseEvent.Flags.HasFlag (MouseFlags.Button1Pressed))
+    {
+        // ... handle mouse press
+        return true; // PREVENTS external code from seeing this event
+    }
+    // ... more handling
+}
+```
+
+**Problem**: External code CANNOT prevent Slider from handling mouse events because:
+1. `View.RaiseMouseEvent` calls `OnMouseEvent` FIRST
+2. Slider overrides `OnMouseEvent` and returns `true`
+3. Event never reaches external subscribers
+
+### What User Wants But Cannot Do
+
+```csharp
+// User wants to temporarily disable slider interaction
+var slider = new Slider();
+
+// THIS DOESN'T WORK - event fired AFTER OnMouseEvent returns true
+slider.MouseEvent += (sender, args) =>
+{
+    if (someCondition)
+    {
+        args.Handled = true; // TOO LATE - already handled by OnMouseEvent
+    }
+};
+```
+
+### Proposed Solution with Reversed Order
+
+```csharp
+// Proposed: Event FIRST, Virtual method SECOND
+protected bool RaiseMouseEvent(MouseEventArgs args)
+{
+    // 1. Invoke event first - external code gets priority
+    MouseEvent?.Invoke(this, args);
+    
+    if (args.Handled)
+    {
+        return true; // Cancel if handled
+    }
+    
+    // 2. Call virtual method second - derived classes get second chance
+    if (OnMouseEvent(args) || args.Handled)
+    {
+        return true;
+    }
+    
+    return args.Handled;
+}
+```
+
+**With Reversed Order**:
+```csharp
+// NOW THIS WORKS
+slider.MouseEvent += (sender, args) =>
+{
+    if (someCondition)
+    {
+        args.Handled = true; // External code PREVENTS Slider.OnMouseEvent
+    }
+};
+```
+
+## Comprehensive CWP Implementations
+
+### 1. View.Mouse.cs - Mouse Events
+
+#### RaiseMouseEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:315`
+```csharp
+public bool RaiseMouseEvent (MouseEventArgs mouseEvent)
+{
+    // TODO: probably this should be moved elsewhere, please advise
+    if (WantContinuousButtonPressed && MouseHeldDown != null)
+    {
+        if (mouseEvent.IsPressed)
+        {
+            MouseHeldDown.Start ();
+        }
+        else
+        {
+            MouseHeldDown.Stop ();
+        }
+    }
+
+    // CURRENT ORDER
+    if (OnMouseEvent (mouseEvent) || mouseEvent.Handled)
+    {
+        return true;
+    }
+
+    MouseEvent?.Invoke (this, mouseEvent);
+
+    return mouseEvent.Handled;
+}
+```
+
+**Overrides Found** (30+):
+- ListView.OnMouseEvent
+- TextView.OnMouseEvent
+- TextField.OnMouseEvent
+- TableView.OnMouseEvent
+- TreeView.OnMouseEvent
+- ScrollBar.OnMouseEvent
+- ScrollSlider.OnMouseEvent
+- Slider.OnMouseEvent (the problematic one)
+- MenuBar.OnMouseEvent
+- TabRow.OnMouseEvent
+- ColorBar.OnMouseEvent
+- And many more...
+
+**Impact of Reversal**: **CRITICAL**
+- All 30+ overrides would need review
+- Many depend on getting first access to mouse events
+- Breaking change for custom views
+
+#### RaiseMouseClickEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:470`
+```csharp
+protected bool RaiseMouseClickEvent (MouseEventArgs args)
+{
+    // Pre-conditions
+    if (!Enabled)
+    {
+        return args.Handled = false;
+    }
+
+    // CURRENT ORDER
+    if (OnMouseClick (args) || args.Handled)
+    {
+        return args.Handled;
+    }
+
+    MouseClick?.Invoke (this, args);
+
+    if (args.Handled)
+    {
+        return true;
+    }
+
+    // Post-conditions - Invoke commands
+    args.Handled = InvokeCommandsBoundToMouse (args) == true;
+
+    return args.Handled;
+}
+```
+
+**Overrides Found**:
+- ScrollBar.OnMouseClick
+
+**Impact of Reversal**: **HIGH**
+- Click handling is critical for UI interaction
+- Commands invoked after event - order matters
+- Less overrides than OnMouseEvent but still significant
+
+#### RaiseMouseWheelEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:574`
+```csharp
+protected bool RaiseMouseWheelEvent (MouseEventArgs args)
+{
+    if (!Enabled)
+    {
+        return args.Handled = false;
+    }
+
+    // CURRENT ORDER
+    if (OnMouseWheel (args) || args.Handled)
+    {
+        return args.Handled;
+    }
+
+    MouseWheel?.Invoke (this, args);
+
+    if (args.Handled)
+    {
+        return true;
+    }
+
+    args.Handled = InvokeCommandsBoundToMouse (args) == true;
+
+    return args.Handled;
+}
+```
+
+**Overrides Found**: Fewer, mostly in scrollable views
+
+**Impact of Reversal**: **MEDIUM-HIGH**
+- Scroll behavior customization important
+- Fewer overrides = lower risk
+- Still breaking change
+
+#### NewMouseEnterEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:69`
+```csharp
+internal bool? NewMouseEnterEvent (CancelEventArgs eventArgs)
+{
+    // Pre-conditions
+    if (!CanBeVisible (this))
+    {
+        return null;
+    }
+
+    // CURRENT ORDER
+    if (OnMouseEnter (eventArgs))
+    {
+        return true;
+    }
+
+    MouseEnter?.Invoke (this, eventArgs);
+
+    if (eventArgs.Cancel)
+    {
+        return true;
+    }
+
+    MouseState |= MouseState.In;
+
+    if (HighlightStates != MouseState.None)
+    {
+        SetNeedsDraw ();
+    }
+
+    return false;
+}
+```
+
+**Impact of Reversal**: **MEDIUM**
+- Less commonly overridden
+- State management (MouseState) happens after event
+- Lower risk
+
+### 2. View.Keyboard.cs - Keyboard Events
+
+#### NewKeyDownEvent
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs:334`
+```csharp
+public bool NewKeyDownEvent (Key k)
+{
+    // CURRENT ORDER
+    if (OnKeyDown (k) || k.Handled)
+    {
+        return true;
+    }
+
+    // fire event
+    KeyDown?.Invoke (this, k);
+
+    return k.Handled;
+}
+```
+
+**Overrides Found** (15+):
+- ListView.OnKeyDown
+- TextView.OnKeyDown
+- TextField.OnKeyDown
+- TableView.OnKeyDown
+- TreeView.OnKeyDown
+- MenuBar.OnKeyDown
+- And more...
+
+**Impact of Reversal**: **CRITICAL**
+- Core input handling
+- Many views depend on first access to keys
+- Text editing depends on this order
+- Breaking change for all text input views
+
+#### NewKeyUpEvent
+**File**: Similar pattern
+
+**Impact of Reversal**: **MEDIUM**
+- Less commonly used
+- Fewer overrides
+- Lower risk than KeyDown
+
+### 3. View.Command.cs - Command Events
+
+#### RaiseAccepting
+**Location**: View.Command.cs (similar to RaiseSelecting)
+
+```csharp
+protected bool? RaiseAccepting (ICommandContext? ctx)
+{
+    CommandEventArgs args = new () { Context = ctx };
+
+    // CURRENT ORDER - Note the comment explicitly explaining the pattern!
+    // Best practice is to invoke the virtual method first.
+    // This allows derived classes to handle the event and potentially cancel it.
+    if (OnAccepting (args) || args.Handled)
+    {
+        return true;
+    }
+
+    // If the event is not canceled by the virtual method, raise the event to notify any external subscribers.
+    Accepting?.Invoke (this, args);
+
+    return Accepting is null ? null : args.Handled;
+}
+```
+
+**Note**: Code comment explicitly documents current pattern as "best practice"!
+
+**Overrides Found**:
+- CheckBox uses for state toggle validation
+- RadioGroup uses for selection validation
+- Button uses for action triggering
+- MenuItemv2 uses for focus prevention
+
+**Impact of Reversal**: **HIGH**
+- State management depends on order
+- Views may need to see state BEFORE external validation
+- Or external validation may need to PREVENT state change
+- Could go either way - depends on use case
+
+#### RaiseSelecting
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:220`
+```csharp
+protected bool? RaiseSelecting (ICommandContext? ctx)
+{
+    CommandEventArgs args = new () { Context = ctx };
+
+    // CURRENT ORDER - with explicit comment about best practice
+    // Best practice is to invoke the virtual method first.
+    // This allows derived classes to handle the event and potentially cancel it.
+    if (OnSelecting (args) || args.Handled)
+    {
+        return true;
+    }
+
+    // If the event is not canceled by the virtual method, raise the event to notify any external subscribers.
+    Selecting?.Invoke (this, args);
+
+    return Selecting is null ? null : args.Handled;
+}
+```
+
+**Impact of Reversal**: **MEDIUM-HIGH**
+- Similar to Accepting
+- Selection state management
+- Could benefit from external control
+
+### 4. View.Navigation.cs - Focus Events
+
+#### AdvanceFocus (calls OnAdvancingFocus)
+**Pattern**: Similar CWP implementation
+
+**Impact of Reversal**: **HIGH**
+- Focus flow is complex
+- Many views customize focus behavior
+- Breaking focus flow could cause navigation issues
+
+#### OnHasFocusChanging
+**Pattern**: Property change with CWP
+
+**Impact of Reversal**: **HIGH**
+- Focus state management
+- Many views track focus state
+- Breaking change for focus-aware views
+
+### 5. View.Drawing.cs - Drawing Events
+
+All drawing events follow CWP pattern:
+- OnDrawingAdornments / DrawingAdornments
+- OnClearingViewport / ClearingViewport  
+- OnDrawingText / DrawingText
+- OnDrawingContent / DrawingContent
+- OnDrawingSubViews / DrawingSubViews
+- OnRenderingLineCanvas / RenderingLineCanvas
+
+**Impact of Reversal**: **LOW-MEDIUM**
+- Mostly for debugging/customization
+- Less likely to cause breaking changes
+- State changes in drawing less critical
+
+### 6. OrientationHelper - Property Change Pattern
+
+**File**: `Terminal.Gui/ViewBase/Orientation/OrientationHelper.cs`
+
+```csharp
+public Orientation Orientation
+{
+    get => _orientation;
+    set
+    {
+        if (_orientation == value)
+        {
+            return;
+        }
+
+        Orientation prev = _orientation;
+
+        // Check if changing is cancelled
+        if (_orientationChangingCallback?.Invoke (prev, value) == true)
+        {
+            return;
+        }
+
+        var changingArgs = new CancelEventArgs<Orientation> (ref _orientation, value, nameof (Orientation));
+        _orientationChangingEvent?.Invoke (this, changingArgs);
+
+        if (changingArgs.Cancel || _orientation == value)
+        {
+            return;
+        }
+
+        _orientation = value;
+
+        // Notify that change happened
+        _orientationChangedCallback?.Invoke (_orientation);
+        _orientationChangedEvent?.Invoke (this, new EventArgs<Orientation> (_orientation));
+    }
+}
+```
+
+**Note**: Uses callback pattern instead of virtual methods, but still calls callback BEFORE event!
+
+**Tests That Validate Current Order**:
+`Tests/UnitTestsParallelizable/View/Orientation/OrientationTests.cs`:
+
+```csharp
+[Fact]
+public void OrientationChanging_VirtualMethodCalledBeforeEvent ()
+{
+    var radioGroup = new CustomView ();
+    bool eventCalled = false;
+
+    radioGroup.OrientationChanging += (sender, e) =>
+    {
+        eventCalled = true;
+        // Test EXPLICITLY checks virtual method called BEFORE event
+        Assert.True (radioGroup.OnOrientationChangingCalled, 
+                     "OnOrientationChanging was not called before the event.");
+    };
+
+    radioGroup.Orientation = Orientation.Horizontal;
+    Assert.True (eventCalled, "OrientationChanging event was not called.");
+}
+
+[Fact]
+public void OrientationChanged_VirtualMethodCalledBeforeEvent ()
+{
+    var radioGroup = new CustomView ();
+    bool eventCalled = false;
+
+    radioGroup.OrientationChanged += (sender, e) =>
+    {
+        eventCalled = true;
+        // Test EXPLICITLY checks virtual method called BEFORE event
+        Assert.True (radioGroup.OnOrientationChangedCalled, 
+                     "OnOrientationChanged was not called before the event.");
+    };
+
+    radioGroup.Orientation = Orientation.Horizontal;
+    Assert.True (eventCalled, "OrientationChanged event was not called.");
+}
+```
+
+**Impact**: These tests would FAIL if order reversed - they explicitly test current behavior!
+
+## Helper Classes Analysis
+
+### CWPWorkflowHelper
+**File**: `Terminal.Gui/App/CWP/CWPWorkflowHelper.cs:42`
+
+```csharp
+public static bool? Execute<T> (
+    Func<ResultEventArgs<T>, bool> onMethod,
+    EventHandler<ResultEventArgs<T>>? eventHandler,
+    ResultEventArgs<T> args,
+    Action? defaultAction = null)
+{
+    ArgumentNullException.ThrowIfNull (onMethod);
+    ArgumentNullException.ThrowIfNull (args);
+
+    // CURRENT ORDER: Virtual method first
+    bool handled = onMethod (args) || args.Handled;
+    if (handled)
+    {
+        return true;
+    }
+
+    // Event second
+    eventHandler?.Invoke (null, args);
+    if (args.Handled)
+    {
+        return true;
+    }
+
+    // Default action last (if neither handled)
+    if (defaultAction is {})
+    {
+        defaultAction ();
+        return true;
+    }
+
+    return eventHandler is null ? null : false;
+}
+```
+
+**Impact of Changing Helper**: **HIGH**
+- Central helper used by multiple workflows
+- Single change affects all users
+- But also single place to change!
+
+### CWPEventHelper
+**File**: `Terminal.Gui/App/CWP/CWPEventHelper.cs:42`
+
+```csharp
+public static bool Execute<T> (
+    EventHandler<ResultEventArgs<T>>? eventHandler,
+    ResultEventArgs<T> args)
+{
+    ArgumentNullException.ThrowIfNull (args);
+
+    if (eventHandler == null)
+    {
+        return false;
+    }
+
+    // Only event - no virtual method in this helper
+    eventHandler.Invoke (null, args);
+    return args.Handled;
+}
+```
+
+**Note**: This helper is event-only, no virtual method, so order not applicable.
+
+## Documentation Analysis
+
+### docfx/docs/events.md
+**File**: `docfx/docs/events.md`
+
+Current documentation explicitly states:
+```markdown
+The [Cancellable Work Pattern (CWP)](cancellable-work-pattern.md) is a core 
+pattern in Terminal.Gui that provides a consistent way to handle cancellable 
+operations. An "event" has two components:
+
+1. **Virtual Method**: `protected virtual OnMethod()` that can be overridden 
+   in a subclass so the subclass can participate
+2. **Event**: `public event EventHandler<>` that allows external subscribers 
+   to participate
+
+The virtual method is called first, letting subclasses have priority. 
+Then the event is invoked.
+```
+
+**Impact**: Documentation explicitly documents current order. Would need update.
+
+### docfx/docs/cancellable-work-pattern.md
+**File**: `docfx/docs/cancellable-work-pattern.md`
+
+Extensive documentation on CWP philosophy and design decisions.
+
+**Impact**: Major documentation update required if order changes.
+
+## Code That DEPENDS on Current Order
+
+### 1. Explicit in Code Comments
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:225-226`
+```csharp
+// Best practice is to invoke the virtual method first.
+// This allows derived classes to handle the event and potentially cancel it.
+```
+
+This comment appears in multiple places and explicitly documents current design as "best practice"!
+
+### 2. Explicit in Tests
+- `OrientationTests.OrientationChanging_VirtualMethodCalledBeforeEvent`
+- `OrientationTests.OrientationChanged_VirtualMethodCalledBeforeEvent`
+
+Tests would fail if order reversed.
+
+### 3. Implicit in View Implementations
+
+Many views override virtual methods with the ASSUMPTION they get first access:
+
+**Example - TextView**:
+```csharp
+protected override bool OnMouseEvent (MouseEventArgs ev)
+{
+    // TextView ASSUMES it processes mouse first
+    // to update cursor position, selection, etc.
+    // External code sees results AFTER TextView processes
+}
+```
+
+**Example - ListView**:
+```csharp
+protected override bool OnKeyDown (Key key)
+{
+    // ListView ASSUMES it processes keys first
+    // to navigate items, select, etc.
+    // External code sees results AFTER ListView processes
+}
+```
+
+### 4. State Management Dependencies
+
+Views often:
+1. Override `OnXxx` to UPDATE STATE first
+2. Then let event handlers see UPDATED STATE
+3. Event handlers may READ state assuming it's current
+
+Reversing order means:
+1. Event handlers see OLD STATE
+2. Virtual method updates state AFTER
+3. Or: Event must prevent state update entirely
+
+## Summary of Breaking Changes
+
+### If Order Reversed Globally
+
+**Code Changes Required**:
+1. Update 33+ virtual method implementations
+2. Update all view overrides (100+ locations)
+3. Update CWPWorkflowHelper
+4. Update CWPPropertyHelper  
+5. Update documentation (events.md, cancellable-work-pattern.md)
+6. Update code comments explaining "best practice"
+7. Fix failing tests (OrientationTests and likely more)
+
+**Affected Views** (partial list):
+- Slider (the issue trigger)
+- ListView
+- TextView, TextField, TextValidateField
+- TableView
+- TreeView
+- MenuBar, Menu
+- ScrollBar, ScrollSlider
+- TabView, TabRow
+- CheckBox, RadioGroup, Button
+- HexView
+- ColorBar
+- DateField, TimeField
+- And 20+ more...
+
+**Risk Assessment**: **VERY HIGH**
+- Fundamental behavioral change
+- Breaks inheritance assumptions
+- Requires extensive testing
+- May break user code that depends on order
+
+## Conclusion
+
+The current CWP order (virtual method first, event second) is:
+1. **Explicitly documented** as "best practice" in code comments
+2. **Tested explicitly** by unit tests
+3. **Depended upon implicitly** by 100+ view implementations
+4. **Philosophically consistent** with inheritance-over-composition
+
+Reversing the order would:
+1. **Solve issue #3714** (Slider mouse event prevention)
+2. **Enable external control** (composition-over-inheritance)
+3. **Break existing code** extensively
+4. **Require major refactoring** across codebase
+5. **Need comprehensive testing** and documentation updates
+
+The choice represents a fundamental design philosophy trade-off:
+- **Current**: Tight coupling via inheritance (derived classes have priority)
+- **Proposed**: Loose coupling via composition (external code has priority)
+
+Neither is "wrong" - it's a design decision with trade-offs either way.
diff --git a/docs/analysis/cwp_helper_migration_analysis.md b/docs/analysis/cwp_helper_migration_analysis.md
new file mode 100644
index 0000000000..c818d89968
--- /dev/null
+++ b/docs/analysis/cwp_helper_migration_analysis.md
@@ -0,0 +1,1073 @@
+# CWP Helper Class Migration Analysis
+
+## Executive Summary
+
+This document provides a detailed analysis of the effort required to replace all direct CWP implementations with CWP helper classes (`CWPWorkflowHelper`, `CWPPropertyHelper`, `CWPEventHelper`).
+
+### Current State
+- **CWP Helper Classes**: 3 (CWPWorkflowHelper, CWPPropertyHelper, CWPEventHelper)
+- **Current Helper Usage**: 2 files (View.Drawing.Scheme.cs only)
+- **Direct CWP Implementations**: 28 methods across 11 files
+- **Total CWP Patterns**: 31 instances
+
+### Migration Summary
+- **Can Use CWPWorkflowHelper**: 24 instances (77%)
+- **Can Use CWPPropertyHelper**: 2 instances (6%)
+- **Cannot Use Helpers (Custom Logic)**: 5 instances (16%)
+- **Estimated Total Effort**: 3-4 weeks
+- **Risk Level**: MEDIUM
+
+## CWP Helper Classes Overview
+
+### 1. CWPWorkflowHelper
+**Purpose**: Single-phase workflows with optional default action
+
+**Signature**:
+```csharp
+public static bool? Execute<T>(
+    Func<ResultEventArgs<T>, bool> onMethod,
+    EventHandler<ResultEventArgs<T>>? eventHandler,
+    ResultEventArgs<T> args,
+    Action? defaultAction = null)
+```
+
+**Use When**:
+- Simple workflow with virtual method + event
+- Returns bool? (true=handled, false=not handled, null=no subscribers)
+- Optional default action if not handled
+- No complex state management between phases
+
+### 2. CWPPropertyHelper
+**Purpose**: Property change with pre/post notifications
+
+**Signature**:
+```csharp
+public static bool ChangeProperty<T>(
+    T currentValue,
+    T newValue,
+    Func<ValueChangingEventArgs<T>, bool> onChanging,
+    EventHandler<ValueChangingEventArgs<T>>? changingEvent,
+    Action<ValueChangedEventArgs<T>>? onChanged,
+    EventHandler<ValueChangedEventArgs<T>>? changedEvent,
+    out T finalValue)
+```
+
+**Use When**:
+- Property setter with validation
+- Need both "changing" (cancellable) and "changed" (notification) events
+- Two-phase pattern (pre-change, post-change)
+
+### 3. CWPEventHelper
+**Purpose**: Event-only pattern (no virtual method)
+
+**Signature**:
+```csharp
+public static bool Execute<T>(
+    EventHandler<ResultEventArgs<T>>? eventHandler,
+    ResultEventArgs<T> args)
+```
+
+**Use When**:
+- Only have event, no virtual method
+- Simple event invocation with handled check
+- Rarely used in current codebase
+
+## Detailed Migration Analysis
+
+### Category 1: Mouse Events (HIGH PRIORITY)
+
+#### 1.1 OnMouseEvent / MouseEvent
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:315-338`
+
+**Current Implementation**:
+```csharp
+public bool RaiseMouseEvent (MouseEventArgs mouseEvent)
+{
+    // Pre-processing: MouseHeldDown logic
+    if (WantContinuousButtonPressed && MouseHeldDown != null)
+    {
+        if (mouseEvent.IsPressed)
+        {
+            MouseHeldDown.Start ();
+        }
+        else
+        {
+            MouseHeldDown.Stop ();
+        }
+    }
+
+    // CWP pattern
+    if (OnMouseEvent (mouseEvent) || mouseEvent.Handled)
+    {
+        return true;
+    }
+
+    MouseEvent?.Invoke (this, mouseEvent);
+
+    return mouseEvent.Handled;
+}
+```
+
+**Can Use Helper?**: ❌ NO - Custom pre-processing logic
+
+**Reason**: The MouseHeldDown logic must execute before the CWP pattern. CWPWorkflowHelper doesn't support pre-processing code before the workflow.
+
+**Migration Difficulty**: N/A (Cannot migrate)
+
+**Recommendation**: Keep as-is. This is appropriate custom logic.
+
+---
+
+#### 1.2 OnMouseClick / MouseClick
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:470-498`
+
+**Current Implementation**:
+```csharp
+protected bool RaiseMouseClickEvent (MouseEventArgs args)
+{
+    // Pre-conditions
+    if (!Enabled)
+    {
+        return args.Handled = false;
+    }
+
+    // CWP pattern
+    if (OnMouseClick (args) || args.Handled)
+    {
+        return args.Handled;
+    }
+
+    MouseClick?.Invoke (this, args);
+
+    if (args.Handled)
+    {
+        return true;
+    }
+
+    // Post-conditions: Invoke commands
+    args.Handled = InvokeCommandsBoundToMouse (args) == true;
+
+    return args.Handled;
+}
+```
+
+**Can Use Helper?**: ⚠️ PARTIAL - Pre/post conditions complicate
+
+**Proposed Migration**:
+```csharp
+protected bool RaiseMouseClickEvent (MouseEventArgs args)
+{
+    // Pre-condition check stays outside
+    if (!Enabled)
+    {
+        return args.Handled = false;
+    }
+
+    // Use helper but wrap return value
+    bool? result = CWPWorkflowHelper.Execute(
+        onMethod: _ => OnMouseClick(args),
+        eventHandler: MouseClick,
+        args: new ResultEventArgs<MouseEventArgs> { Result = args },
+        defaultAction: null);
+
+    // Post-condition: Invoke commands if not handled
+    if (result != true && !args.Handled)
+    {
+        args.Handled = InvokeCommandsBoundToMouse(args) == true;
+    }
+
+    return args.Handled;
+}
+```
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Issues**:
+1. MouseEventArgs doesn't fit ResultEventArgs<T> pattern cleanly
+2. Pre/post conditions require wrapper logic
+3. Command invocation logic stays outside helper
+4. More complex than direct implementation
+
+**Recommendation**: ❌ Don't migrate. Direct implementation is clearer.
+
+---
+
+#### 1.3 OnMouseWheel / MouseWheel
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:574-600`
+
+**Analysis**: Same pattern as OnMouseClick
+
+**Can Use Helper?**: ⚠️ PARTIAL (same issues)
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Recommendation**: ❌ Don't migrate
+
+---
+
+#### 1.4 OnMouseEnter / MouseEnter
+**File**: `Terminal.Gui/ViewBase/View.Mouse.cs:69-98`
+
+**Current Implementation**:
+```csharp
+internal bool? NewMouseEnterEvent (CancelEventArgs eventArgs)
+{
+    if (!CanBeVisible (this))
+    {
+        return null;
+    }
+
+    if (OnMouseEnter (eventArgs))
+    {
+        return true;
+    }
+
+    MouseEnter?.Invoke (this, eventArgs);
+
+    if (eventArgs.Cancel)
+    {
+        return true;
+    }
+
+    // Post-processing: Set mouse state
+    MouseState |= MouseState.In;
+
+    if (HighlightStates != MouseState.None)
+    {
+        SetNeedsDraw ();
+    }
+
+    return false;
+}
+```
+
+**Can Use Helper?**: ❌ NO - Post-processing state management
+
+**Reason**: Setting MouseState and SetNeedsDraw after event is essential logic that can't be a "default action"
+
+**Migration Difficulty**: N/A
+
+**Recommendation**: ❌ Don't migrate
+
+---
+
+### Category 2: Keyboard Events (HIGH PRIORITY)
+
+#### 2.1 OnKeyDown / KeyDown
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs:322-337`
+
+**Current Implementation**:
+```csharp
+public bool NewKeyDownEvent (Key k)
+{
+    if (OnKeyDown (k) || k.Handled)
+    {
+        return true;
+    }
+
+    KeyDown?.Invoke (this, k);
+
+    return k.Handled;
+}
+```
+
+**Can Use Helper?**: ✅ YES - Clean fit
+
+**Proposed Migration**:
+```csharp
+public bool NewKeyDownEvent (Key k)
+{
+    ResultEventArgs<Key> args = new (k);
+    
+    bool? result = CWPWorkflowHelper.Execute(
+        onMethod: args => OnKeyDown(k),
+        eventHandler: (sender, e) => KeyDown?.Invoke(sender, k),
+        args: args,
+        defaultAction: null);
+
+    return result == true || k.Handled;
+}
+```
+
+**Migration Difficulty**: ⭐⭐ MEDIUM
+
+**Issues**:
+1. Key is mutable (k.Handled), not immutable like ResultEventArgs expects
+2. Need to synchronize k.Handled with result
+3. Event signature doesn't match helper's expected EventHandler<ResultEventArgs<T>>
+4. Current implementation is actually simpler
+
+**Recommendation**: ⚠️ Marginal benefit. Could migrate for consistency but adds complexity.
+
+---
+
+#### 2.2 OnKeyDownNotHandled / KeyDownNotHandled
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs:339-349`
+
+**Analysis**: Same pattern as OnKeyDown
+
+**Can Use Helper?**: ✅ YES (same issues)
+
+**Migration Difficulty**: ⭐⭐ MEDIUM
+
+**Recommendation**: ⚠️ Marginal benefit
+
+---
+
+#### 2.3 OnKeyUp / KeyUp
+**File**: `Terminal.Gui/ViewBase/View.Keyboard.cs` (similar location)
+
+**Analysis**: Same pattern as OnKeyDown
+
+**Can Use Helper?**: ✅ YES (same issues)
+
+**Migration Difficulty**: ⭐⭐ MEDIUM
+
+**Recommendation**: ⚠️ Marginal benefit
+
+---
+
+### Category 3: Command Events (MEDIUM PRIORITY)
+
+#### 3.1 OnAccepting / Accepting
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:160-177`
+
+**Current Implementation**:
+```csharp
+protected bool? RaiseAccepting (ICommandContext? ctx)
+{
+    CommandEventArgs args = new () { Context = ctx };
+
+    if (OnAccepting (args) || args.Handled)
+    {
+        return true;
+    }
+
+    Accepting?.Invoke (this, args);
+
+    return Accepting is null ? null : args.Handled;
+}
+```
+
+**Can Use Helper?**: ✅ YES - Good fit!
+
+**Proposed Migration**:
+```csharp
+protected bool? RaiseAccepting (ICommandContext? ctx)
+{
+    ResultEventArgs<ICommandContext?> args = new (ctx);
+    
+    return CWPWorkflowHelper.Execute(
+        onMethod: args => OnAccepting(new CommandEventArgs { Context = args.Result }),
+        eventHandler: (sender, e) => 
+        {
+            var cmdArgs = new CommandEventArgs { Context = e.Result };
+            Accepting?.Invoke(sender, cmdArgs);
+            e.Handled = cmdArgs.Handled;
+        },
+        args: args,
+        defaultAction: null);
+}
+```
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Issues**:
+1. CommandEventArgs is separate from ResultEventArgs
+2. Need to create/map CommandEventArgs inside helper calls
+3. Complex argument marshalling
+4. Current implementation is clearer
+
+**Recommendation**: ⚠️ Could work but adds complexity. Direct implementation is simpler.
+
+---
+
+#### 3.2 OnSelecting / Selecting
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:220-236`
+
+**Analysis**: Identical pattern to OnAccepting
+
+**Can Use Helper?**: ✅ YES (same issues)
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Recommendation**: ⚠️ Same as OnAccepting
+
+---
+
+#### 3.3 OnHandlingHotKey / HandlingHotKey
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:260-277`
+
+**Analysis**: Identical pattern to OnAccepting
+
+**Can Use Helper?**: ✅ YES (same issues)
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Recommendation**: ⚠️ Same as OnAccepting
+
+---
+
+#### 3.4 OnCommandNotBound / CommandNotBound
+**File**: `Terminal.Gui/ViewBase/View.Command.cs:93-109`
+
+**Analysis**: Identical pattern to OnAccepting
+
+**Can Use Helper?**: ✅ YES (same issues)
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Recommendation**: ⚠️ Same as OnAccepting
+
+---
+
+### Category 4: Navigation Events (MEDIUM PRIORITY)
+
+#### 4.1 OnAdvancingFocus / AdvancingFocus
+**File**: `Terminal.Gui/ViewBase/View.Navigation.cs` (AdvanceFocus method)
+
+**Current Implementation Pattern**:
+```csharp
+// Inside AdvanceFocus method
+AdvanceFocusEventArgs args = new (direction, behavior);
+
+if (OnAdvancingFocus (direction, behavior))
+{
+    return false;
+}
+
+AdvancingFocus?.Invoke (this, args);
+
+if (args.Cancel)
+{
+    return false;
+}
+```
+
+**Can Use Helper?**: ⚠️ PARTIAL - Embedded in larger method
+
+**Migration Difficulty**: ⭐⭐⭐⭐ VERY HARD
+
+**Issues**:
+1. Not in its own Raise method - embedded in AdvanceFocus logic
+2. Complex navigation state management around the pattern
+3. Would require extracting to separate method first
+4. Return semantics differ (returns bool, not bool?)
+
+**Recommendation**: ❌ Don't migrate. Too embedded in complex logic.
+
+---
+
+#### 4.2 OnHasFocusChanging / HasFocusChanging
+**File**: `Terminal.Gui/ViewBase/View.Navigation.cs:717-750`
+
+**Analysis**: Similar to AdvancingFocus - embedded in SetHasFocus method
+
+**Can Use Helper?**: ⚠️ PARTIAL - Embedded in larger method
+
+**Migration Difficulty**: ⭐⭐⭐⭐ VERY HARD
+
+**Recommendation**: ❌ Don't migrate. Too embedded.
+
+---
+
+### Category 5: Drawing Events (LOW PRIORITY)
+
+#### 5.1-5.6 Drawing Events
+**Files**: `Terminal.Gui/ViewBase/View.Drawing.cs`
+- OnDrawingAdornments / DrawingAdornments (line 284)
+- OnClearingViewport / ClearingViewport (line 319)
+- OnDrawingText / DrawingText (lines 407, 413)
+- OnDrawingContent / DrawingContent (lines 489, 495)
+- OnDrawingSubViews / DrawingSubViews (lines 545, 551)
+- OnRenderingLineCanvas / RenderingLineCanvas (line 611)
+
+**Current Implementation Pattern** (OnDrawingContent example):
+```csharp
+private void DoDrawContent (DrawContext? context = null)
+{
+    if (OnDrawingContent (context))
+    {
+        return;
+    }
+
+    if (OnDrawingContent ())
+    {
+        return;
+    }
+
+    var dev = new DrawEventArgs (Viewport, Rectangle.Empty, context);
+    DrawingContent?.Invoke (this, dev);
+
+    if (dev.Cancel)
+    {
+        return;
+    }
+
+    // Actual drawing logic...
+}
+```
+
+**Can Use Helper?**: ⚠️ PARTIAL - Non-standard pattern
+
+**Migration Difficulty**: ⭐⭐⭐ HARD
+
+**Issues**:
+1. TWO virtual methods (overloaded) - OnDrawingContent(context) and OnDrawingContent()
+2. DrawEventArgs created after virtual methods called
+3. Embedded in DoDrawXxx methods with actual drawing logic after
+4. Cancel semantics differ from standard CWP
+
+**Recommendation**: ❌ Don't migrate. Custom drawing pipeline better as-is.
+
+---
+
+### Category 6: Property Changes (MEDIUM PRIORITY)
+
+#### 6.1 OnVisibleChanging / VisibleChanging
+**File**: `Terminal.Gui/ViewBase/View.cs:382-420`
+
+**Current Implementation**:
+```csharp
+public bool Visible
+{
+    get => _visible;
+    set
+    {
+        if (_visible == value)
+        {
+            return;
+        }
+
+        if (OnVisibleChanging ())
+        {
+            return;
+        }
+
+        VisibleChanging?.Invoke (this, new CancelEventArgs (ref _visible, value));
+
+        if (_visible == value)
+        {
+            return;
+        }
+
+        bool wasVisible = _visible;
+        _visible = value;
+
+        OnVisibleChanged ();
+        VisibleChanged?.Invoke (this, EventArgs.Empty);
+        
+        // Post-processing...
+        if (!_visible)
+        {
+            RestoreFocus ();
+        }
+        
+        SetNeedsDraw ();
+        // ... more post-processing
+    }
+}
+```
+
+**Can Use Helper?**: ✅ YES - CWPPropertyHelper designed for this!
+
+**Proposed Migration**:
+```csharp
+public bool Visible
+{
+    get => _visible;
+    set
+    {
+        bool changed = CWPPropertyHelper.ChangeProperty(
+            _visible,
+            value,
+            args => OnVisibleChanging(),  // Problem: signature mismatch
+            VisibleChanging,               // Problem: uses CancelEventArgs, not ValueChangingEventArgs
+            args => OnVisibleChanged(),
+            VisibleChanged,                // Problem: uses EventArgs, not ValueChangedEventArgs
+            out bool finalValue);
+
+        if (changed)
+        {
+            _visible = finalValue;
+            
+            // Post-processing
+            if (!_visible)
+            {
+                RestoreFocus ();
+            }
+            SetNeedsDraw ();
+            // ... more
+        }
+    }
+}
+```
+
+**Migration Difficulty**: ⭐⭐⭐⭐ VERY HARD
+
+**Issues**:
+1. OnVisibleChanging() takes no parameters - CWPPropertyHelper expects ValueChangingEventArgs<T>
+2. VisibleChanging uses CancelEventArgs, not ValueChangingEventArgs<bool>
+3. VisibleChanged uses EventArgs, not ValueChangedEventArgs<bool>
+4. Would require changing event signatures (BREAKING CHANGE)
+5. Complex post-processing logic after change
+
+**Recommendation**: ❌ Don't migrate. Would require breaking API changes.
+
+---
+
+#### 6.2 OnSchemeNameChanging / SchemeName
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:25-44`
+
+**Current Implementation**: ✅ ALREADY USES CWPPropertyHelper!
+
+**Status**: ✅ Already migrated - good example to follow
+
+---
+
+#### 6.3 OnGettingScheme / GettingScheme
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:133-162`
+
+**Current Implementation**: ✅ ALREADY USES CWPWorkflowHelper.ExecuteWithResult!
+
+**Status**: ✅ Already migrated - good example to follow
+
+---
+
+#### 6.4 OnSettingScheme / SetScheme
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Scheme.cs:217-234`
+
+**Current Implementation**: ✅ ALREADY USES CWPPropertyHelper!
+
+**Status**: ✅ Already migrated - good example to follow
+
+---
+
+### Category 7: View-Specific Events (LOW PRIORITY)
+
+#### 7.1 OnCellActivated / CellActivated (TableView)
+**File**: `Terminal.Gui/Views/TableView/TableView.cs:1277+`
+
+**Analysis**: View-specific, likely custom implementation
+
+**Can Use Helper?**: ✅ Likely YES
+
+**Migration Difficulty**: ⭐⭐ MEDIUM
+
+**Recommendation**: ⚠️ Low priority, could migrate
+
+---
+
+#### 7.2 OnPositionChanging (ScrollBar, ScrollSlider)
+**Files**: 
+- `Terminal.Gui/Views/ScrollBar/ScrollBar.cs:375`
+- `Terminal.Gui/Views/ScrollBar/ScrollSlider.cs:245`
+
+**Can Use Helper?**: ✅ Likely YES - property change pattern
+
+**Migration Difficulty**: ⭐⭐ MEDIUM
+
+**Issues**:
+1. Takes (int currentPos, int newPos) parameters
+2. CWPPropertyHelper expects single value
+3. Would need wrapper
+
+**Recommendation**: ⚠️ Could work but parameters don't match pattern well
+
+---
+
+#### 7.3 OnCheckedStateChanging (CheckBox)
+**File**: `Terminal.Gui/Views/CheckBox.cs:187`
+
+**Current Implementation** (in ChangeCheckedState):
+```csharp
+private bool? ChangeCheckedState (CheckState value)
+{
+    if (_checkedState == value || (value is CheckState.None && !AllowCheckStateNone))
+    {
+        return null;
+    }
+
+    ResultEventArgs<CheckState> e = new (value);
+
+    if (OnCheckedStateChanging (e))
+    {
+        return true;
+    }
+
+    CheckedStateChanging?.Invoke (this, e);
+
+    if (e.Handled)
+    {
+        return e.Handled;
+    }
+
+    _checkedState = value;
+    UpdateTextFormatterText ();
+    SetNeedsLayout ();
+
+    EventArgs<CheckState> args = new (in _checkedState);
+    OnCheckedStateChanged (args);
+
+    CheckedStateChanged?.Invoke (this, args);
+
+    return false;
+}
+```
+
+**Can Use Helper?**: ✅ YES - This is a PERFECT match!
+
+**Proposed Migration**:
+```csharp
+private bool? ChangeCheckedState (CheckState value)
+{
+    // Pre-condition check
+    if (_checkedState == value || (value is CheckState.None && !AllowCheckStateNone))
+    {
+        return null;
+    }
+
+    bool changed = CWPPropertyHelper.ChangeProperty(
+        _checkedState,
+        value,
+        OnCheckedStateChanging,
+        CheckedStateChanging,
+        OnCheckedStateChanged,
+        CheckedStateChanged,
+        out CheckState finalValue);
+
+    if (changed)
+    {
+        _checkedState = finalValue;
+        UpdateTextFormatterText();
+        SetNeedsLayout();
+        return false;
+    }
+    
+    return true; // Was cancelled
+}
+```
+
+**Migration Difficulty**: ⭐ EASY
+
+**Issues**:
+1. Need to adjust OnCheckedStateChanged signature from EventArgs<CheckState> to ValueChangedEventArgs<CheckState>
+2. Return semantics: method returns bool? (null/true/false), helper only returns bool (true/false)
+
+**Recommendation**: ✅ **STRONGLY RECOMMEND** - This is the best candidate! But need to handle:
+- Signature changes for OnCheckedStateChanged
+- Return value mapping (helper returns bool, method needs bool?)
+
+---
+
+#### 7.4 OnGettingAttributeForRole / GettingAttributeForRole
+**File**: `Terminal.Gui/ViewBase/View.Drawing.Attribute.cs:78`
+
+**Analysis**: Likely embedded in GetAttributeForRole method
+
+**Can Use Helper?**: ⚠️ PARTIAL - Need to examine implementation
+
+**Migration Difficulty**: ⭐⭐⭐ HARD (unknown)
+
+**Recommendation**: ⚠️ Low priority, need more analysis
+
+---
+
+#### 7.5 OnBorderStyleChanged
+**File**: `Terminal.Gui/ViewBase/View.Adornments.cs:162`
+
+**Analysis**: Property change notification (not cancellable)
+
+**Can Use Helper?**: ❌ NO - Post-change only, no pre-change cancellation
+
+**Recommendation**: ❌ Don't migrate. Not CWP pattern.
+
+---
+
+#### 7.6 OnMouseIsHeldDownTick (MouseHeldDown)
+**File**: `Terminal.Gui/ViewBase/MouseHeldDown.cs:71`
+
+**Analysis**: Specialized repeating tick event
+
+**Can Use Helper?**: ❌ NO - Custom timer logic
+
+**Recommendation**: ❌ Don't migrate. Specialized use case.
+
+---
+
+## Migration Recommendations by Priority
+
+### ✅ STRONGLY RECOMMEND (1 instance)
+**Effort**: 1-2 days
+
+1. **CheckBox.OnCheckedStateChanging** 
+   - Perfect fit for CWPPropertyHelper
+   - Requires minor signature adjustments
+   - Good example for others
+   - Clear improvement
+
+### ⚠️ CONSIDER (4 instances)
+**Effort**: 1-2 weeks
+
+2. **Command Events** (OnAccepting, OnSelecting, OnHandlingHotKey, OnCommandNotBound)
+   - Could work but requires wrapper logic
+   - Marginal improvement over direct implementation
+   - Good for consistency if pursuing helper migration strategy
+
+3. **Keyboard Events** (OnKeyDown, OnKeyDownNotHandled, OnKeyUp)
+   - Could work but mutable Key complicates
+   - Marginal improvement
+   - Consider only for consistency
+
+### ❌ DON'T MIGRATE (23 instances)
+**Reason**: Custom logic, embedded patterns, or breaking changes required
+
+- **Mouse Events** (4): OnMouseEvent, OnMouseClick, OnMouseWheel, OnMouseEnter
+  - Custom pre/post processing
+  - Direct implementation clearer
+
+- **Navigation Events** (2): OnAdvancingFocus, OnHasFocusChanging
+  - Embedded in complex methods
+  - Too tightly coupled
+
+- **Drawing Events** (6): All drawing events
+  - Custom pipeline
+  - Non-standard pattern with dual overloads
+
+- **Property Changes** (1): OnVisibleChanging
+  - Would require breaking API changes
+  - Complex post-processing
+
+- **View-Specific** (10): TableView, ScrollBar/Slider (2), BorderStyle, MouseHeldDown, etc.
+  - Specialized logic
+  - Low value
+
+## Overall Migration Strategy
+
+### Option A: Minimal Migration (RECOMMENDED)
+**Effort**: 1-2 days
+**Risk**: LOW
+
+Migrate only:
+1. CheckBox.OnCheckedStateChanging (perfect fit)
+
+**Benefits**:
+- Demonstrates helper usage in real View code
+- Clear improvement
+- Low risk
+
+**Drawbacks**:
+- Limited consistency improvement
+- Most code still uses direct implementation
+
+---
+
+### Option B: Partial Migration
+**Effort**: 2-3 weeks
+**Risk**: MEDIUM
+
+Migrate:
+1. CheckBox.OnCheckedStateChanging
+2. All Command events (4 instances)
+3. All Keyboard events (3 instances)
+
+**Benefits**:
+- More consistency
+- Demonstrates helper usage in core events
+- Shows pattern across event types
+
+**Drawbacks**:
+- Significant refactoring effort
+- Marginal improvement for many instances
+- Requires careful testing
+- More complex code in some cases
+
+---
+
+### Option C: Full Migration
+**Effort**: 6-8 weeks
+**Risk**: HIGH
+
+Attempt to migrate all possible instances.
+
+**Benefits**:
+- Maximum consistency
+- Full helper usage
+
+**Drawbacks**:
+- Many instances don't fit helper pattern well
+- Would require API breaking changes
+- Creates wrapper complexity
+- Direct implementation often clearer
+- Very high effort for limited benefit
+
+**Recommendation**: ❌ NOT RECOMMENDED
+
+---
+
+## Key Findings & Gotchas
+
+### 1. Helper Pattern Assumptions Don't Always Match Reality
+
+**Issue**: Helpers assume clean separation of concerns, but real implementations have:
+- Pre-conditions (Enabled checks, visibility checks)
+- Post-conditions (command invocation, state updates)
+- Complex argument types (CommandEventArgs vs ResultEventArgs)
+- Mutable arguments (Key.Handled)
+
+**Example**: RaiseMouseClickEvent has both pre-checks and post-command invocation that can't fit in helper.
+
+---
+
+### 2. Event Argument Type Mismatches
+
+**Issue**: Many events use custom EventArgs types that don't match helper expectations:
+- CancelEventArgs vs ValueChangingEventArgs<T>
+- CommandEventArgs vs ResultEventArgs<T>
+- EventArgs vs ValueChangedEventArgs<T>
+
+**Impact**: Would require:
+- Breaking API changes to event signatures, OR
+- Complex wrapper logic that negates helper benefits
+
+---
+
+### 3. Embedded Patterns Resist Extraction
+
+**Issue**: Many CWP patterns are embedded in larger methods (AdvanceFocus, DoDrawContent, etc.) with:
+- Complex surrounding logic
+- State management
+- Multiple phases
+
+**Impact**: Extracting to use helpers would:
+- Require significant refactoring
+- Reduce readability
+- Increase complexity
+
+---
+
+### 4. Two-Virtual-Method Pattern
+
+**Issue**: Drawing events have TWO virtual methods:
+```csharp
+OnDrawingContent(DrawContext? context)
+OnDrawingContent()  // No parameters
+```
+
+**Impact**: Helper assumes single virtual method. This pattern can't fit without major changes.
+
+---
+
+### 5. Return Value Semantics Differ
+
+**Issue**: Many methods return bool?, helpers return bool or bool?:
+- null = no subscribers
+- true = handled/cancelled
+- false = not handled
+
+**Impact**: Translating return values adds complexity.
+
+---
+
+### 6. Current Helper Usage is Limited
+
+**Fact**: Only View.Drawing.Scheme.cs uses helpers currently (3 usages).
+
+**Implications**:
+- Helpers are relatively new
+- Most code predates helpers
+- Helpers designed for specific patterns (property changes, result workflows)
+- Not designed to replace all CWP implementations
+
+---
+
+### 7. Direct Implementation Often Clearer
+
+**Observation**: For many instances, direct implementation is:
+- More readable
+- More maintainable
+- Less code
+- Fewer abstractions
+
+**Example**:
+```csharp
+// Direct (Current) - Clear and simple
+if (OnKeyDown (k) || k.Handled)
+{
+    return true;
+}
+KeyDown?.Invoke (this, k);
+return k.Handled;
+
+// With Helper - More complex
+ResultEventArgs<Key> args = new (k);
+bool? result = CWPWorkflowHelper.Execute(
+    onMethod: args => OnKeyDown(k),
+    eventHandler: (sender, e) => KeyDown?.Invoke(sender, k),
+    args: args,
+    defaultAction: null);
+return result == true || k.Handled;
+```
+
+---
+
+## Recommendations Summary
+
+### For Maintainers
+
+1. **Don't pursue full migration** - Effort (6-8 weeks) far exceeds benefit
+2. **Migrate CheckBox.OnCheckedStateChanging** - Perfect fit, good example
+3. **Consider Command/Keyboard events** - Only if pursuing consistency strategy
+4. **Keep direct implementations** - For most instances, direct is clearer
+5. **Document when to use helpers** - Update guidance for new CWP implementations
+
+### For New Code
+
+**Use CWPPropertyHelper when**:
+- Implementing property setter with validation
+- Need pre/post change events
+- Event types match ValueChangingEventArgs<T> and ValueChangedEventArgs<T>
+
+**Use CWPWorkflowHelper when**:
+- Simple workflow with single result type
+- Clean separation of virtual method, event, default action
+- No complex pre/post processing
+- ResultEventArgs<T> fits naturally
+
+**Use direct implementation when**:
+- Custom pre/post processing logic
+- Complex argument types
+- Embedded in larger method
+- Event types don't match helper expectations
+- Direct code is clearer
+
+### Documentation Updates Needed
+
+If pursuing any migration:
+
+1. Update `docs/analysis/cwp_analysis_report.md`
+   - Add section on helper class usage
+   - Document migration outcomes
+
+2. Update `docfx/docs/events.md`
+   - Add guidance on when to use helpers
+   - Show examples of helper usage
+   - Document when direct implementation is better
+
+3. Update `docfx/docs/cancellable-work-pattern.md`
+   - Add helper class section
+   - Explain design decisions
+   - Show pros/cons
+
+## Conclusion
+
+**Total Effort Summary**:
+- Option A (Recommended): 1-2 days
+- Option B (Partial): 2-3 weeks  
+- Option C (Full): 6-8 weeks (not recommended)
+
+**Key Insight**: CWP helper classes were designed for specific patterns (property changes, clean workflows) and work well for those cases (View.Drawing.Scheme.cs). However, most CWP implementations in the codebase have custom logic, pre/post processing, or embedded patterns that don't fit the helper abstraction well.
+
+**Recommendation**: Migrate CheckBox.OnCheckedStateChanging only (Option A). This demonstrates helper usage in a real view, provides a clear example for developers, and improves code quality without significant risk or effort. Leave other implementations as direct implementations since they're often clearer and more maintainable that way.
+
+The goal should be to use helpers where they add value, not to force all code into the helper pattern.
diff --git a/docs/analysis/cwp_recommendations.md b/docs/analysis/cwp_recommendations.md
new file mode 100644
index 0000000000..4fa44990fd
--- /dev/null
+++ b/docs/analysis/cwp_recommendations.md
@@ -0,0 +1,472 @@
+# CWP Pattern Analysis - Executive Summary & Recommendations
+
+## Quick Facts
+
+- **Total CWP Implementations**: 33+ event pairs
+- **Virtual Method Overrides**: 100+ across codebase
+- **Current Order**: Virtual method → Event (inheritance priority)
+- **Proposed Order**: Event → Virtual method (composition priority)
+- **Breaking Change Magnitude**: VERY HIGH
+- **Estimated Effort**: 4-6 weeks for complete refactor
+- **Risk Level**: HIGH
+
+## The Core Issue (#3714)
+
+External code cannot prevent views like `Slider` from handling mouse events because:
+
+```csharp
+// What users want but CANNOT do today:
+slider.MouseEvent += (s, e) => 
+{
+    if (someCondition)
+        e.Handled = true; // TOO LATE! Slider.OnMouseEvent already handled it
+};
+```
+
+The virtual method (`OnMouseEvent`) runs first and can mark the event as handled, preventing the event from firing.
+
+## Four Solution Options
+
+### Option 1: Reverse Order Globally ⚠️ HIGH RISK
+
+**Change**: Event first → Virtual method second (for all 33+ CWP patterns)
+
+**Pros**:
+- Solves #3714 completely
+- Consistent pattern everywhere
+- Enables external control (composition over inheritance)
+- Single comprehensive solution
+
+**Cons**:
+- MAJOR breaking change
+- 100+ view overrides need review/update
+- Changes fundamental framework philosophy
+- Breaks existing user code expectations
+- Requires extensive testing
+- Updates to helper classes, documentation, tests
+
+**Effort**: 4-6 weeks
+**Risk**: VERY HIGH
+**Recommendation**: ❌ NOT RECOMMENDED unless major version change
+
+### Option 2: Add "Before" Events 🎯 RECOMMENDED
+
+**Change**: Add new pre-phase events (e.g., `BeforeMouseEvent`, `BeforeKeyDown`)
+
+```csharp
+// New pattern for critical events
+protected bool RaiseMouseEvent(MouseEventArgs args)
+{
+    // New: BeforeMouseEvent (external code gets first chance)
+    BeforeMouseEvent?.Invoke(this, args);
+    if (args.Handled)
+        return true;
+    
+    // Existing: OnMouseEvent (virtual method)
+    if (OnMouseEvent(args) || args.Handled)
+        return true;
+    
+    // Existing: MouseEvent (external code gets second chance)
+    MouseEvent?.Invoke(this, args);
+    return args.Handled;
+}
+```
+
+**Pros**:
+- Non-breaking (additive change only)
+- Solves #3714 for mouse events
+- Can apply selectively to problematic events
+- Gradual migration path
+- Clear intent (Before/During/After phases)
+
+**Cons**:
+- More API surface
+- Two patterns coexist (inconsistency)
+- More complex for new developers
+- Partial solution only
+
+**Implementation Plan**:
+1. **Phase 1** (1 week): Add `BeforeMouseEvent`, `BeforeMouseClick`, `BeforeMouseWheel`
+2. **Phase 2** (1 week): Add `BeforeKeyDown` if needed
+3. **Phase 3** (ongoing): Add others as needed, deprecate old pattern gradually
+
+**Effort**: 2-3 weeks initial, ongoing refinement
+**Risk**: LOW
+**Recommendation**: ✅ **RECOMMENDED** - Best balance of solving issue vs. risk
+
+### Option 3: Add `MouseInputEnabled` Property 🔧 QUICK FIX
+
+**Change**: Add property to View to disable mouse handling
+
+```csharp
+public class View
+{
+    public bool MouseInputEnabled { get; set; } = true;
+    
+    public bool? NewMouseEvent(MouseEventArgs mouseEvent)
+    {
+        if (!MouseInputEnabled)
+            return false; // Don't process
+            
+        // ... existing code
+    }
+}
+
+// Usage
+slider.MouseInputEnabled = false; // Disable slider mouse handling
+```
+
+**Pros**:
+- Minimal change
+- Solves immediate #3714 issue
+- No breaking changes
+- Easy to implement
+- Easy to understand
+
+**Cons**:
+- Band-aid solution (doesn't address root cause)
+- Mouse-specific (doesn't help keyboard, etc.)
+- All-or-nothing (can't selectively disable)
+- Adds more properties to View
+
+**Effort**: 1 week
+**Risk**: VERY LOW
+**Recommendation**: ⚠️ Acceptable as short-term fix, not long-term solution
+
+### Option 4: Reverse Order for Mouse Only 🎯 TARGETED FIX
+
+**Change**: Event first → Virtual method second, but ONLY for mouse events
+
+**Pros**:
+- Solves #3714 directly
+- Limited scope reduces risk
+- Mouse is the primary concern
+- Clearer than "Before" events
+
+**Cons**:
+- Inconsistent pattern (mouse different from keyboard)
+- Still breaking for mouse event overrides
+- Confusing to have different orders
+- Doesn't help future similar issues
+
+**Effort**: 2 weeks
+**Risk**: MEDIUM
+**Recommendation**: ⚠️ Better than Option 1, but Option 2 is cleaner
+
+## Detailed Recommendation: Option 2 (Before Events)
+
+### Implementation Specification
+
+#### For Mouse Events (High Priority)
+
+```csharp
+public partial class View // Mouse APIs
+{
+    /// <summary>
+    /// Event raised BEFORE OnMouseEvent is called, allowing external code
+    /// to cancel mouse event processing before the view handles it.
+    /// </summary>
+    public event EventHandler<MouseEventArgs>? BeforeMouseEvent;
+    
+    /// <summary>
+    /// Event raised BEFORE OnMouseClick is called, allowing external code
+    /// to cancel mouse click processing before the view handles it.
+    /// </summary>
+    public event EventHandler<MouseEventArgs>? BeforeMouseClick;
+    
+    public bool RaiseMouseEvent (MouseEventArgs mouseEvent)
+    {
+        // Phase 1: Before event (external pre-processing)
+        BeforeMouseEvent?.Invoke(this, mouseEvent);
+        if (mouseEvent.Handled)
+        {
+            return true;
+        }
+        
+        // Phase 2: Virtual method (view processing)
+        if (OnMouseEvent (mouseEvent) || mouseEvent.Handled)
+        {
+            return true;
+        }
+
+        // Phase 3: After event (external post-processing)
+        MouseEvent?.Invoke (this, mouseEvent);
+
+        return mouseEvent.Handled;
+    }
+    
+    protected bool RaiseMouseClickEvent (MouseEventArgs args)
+    {
+        if (!Enabled)
+        {
+            return args.Handled = false;
+        }
+
+        // Phase 1: Before event
+        BeforeMouseClick?.Invoke(this, args);
+        if (args.Handled)
+        {
+            return args.Handled;
+        }
+
+        // Phase 2: Virtual method
+        if (OnMouseClick (args) || args.Handled)
+        {
+            return args.Handled;
+        }
+
+        // Phase 3: After event
+        MouseClick?.Invoke (this, args);
+
+        if (args.Handled)
+        {
+            return true;
+        }
+
+        // Post-conditions
+        args.Handled = InvokeCommandsBoundToMouse (args) == true;
+
+        return args.Handled;
+    }
+}
+```
+
+#### Usage Example (Solves #3714)
+
+```csharp
+var slider = new Slider();
+
+// NOW THIS WORKS - external code can prevent slider from handling mouse
+slider.BeforeMouseEvent += (sender, args) =>
+{
+    if (someCondition)
+    {
+        args.Handled = true; // Prevents Slider.OnMouseEvent from being called
+    }
+};
+
+// Or use lambda with specific logic
+slider.BeforeMouseEvent += (sender, args) =>
+{
+    if (args.Flags.HasFlag(MouseFlags.Button1Clicked) && IsModalDialogOpen())
+    {
+        args.Handled = true; // Block slider interaction when dialog is open
+    }
+};
+```
+
+#### For Keyboard Events (Medium Priority)
+
+```csharp
+public partial class View // Keyboard APIs
+{
+    /// <summary>
+    /// Event raised BEFORE OnKeyDown is called, allowing external code
+    /// to cancel key event processing before the view handles it.
+    /// </summary>
+    public event EventHandler<Key>? BeforeKeyDown;
+    
+    public bool NewKeyDownEvent (Key k)
+    {
+        // Phase 1: Before event
+        BeforeKeyDown?.Invoke(this, k);
+        if (k.Handled)
+        {
+            return true;
+        }
+        
+        // Phase 2: Virtual method
+        if (OnKeyDown (k) || k.Handled)
+        {
+            return true;
+        }
+
+        // Phase 3: After event (existing KeyDown)
+        KeyDown?.Invoke (this, k);
+
+        return k.Handled;
+    }
+}
+```
+
+#### For Other Events (Low Priority - As Needed)
+
+Add `Before*` events for other patterns only if/when users request them.
+
+### Migration Path
+
+#### v2.x (Current)
+- Keep existing pattern
+- Add `Before*` events
+- Document both patterns
+- Mark as "preferred" for external control
+
+#### v3.0 (Future)
+- Consider deprecating old pattern
+- Maybe reverse order globally
+- Or standardize on Before/After pattern
+
+### Documentation Updates
+
+Add to `docfx/docs/events.md`:
+
+````markdown
+#### Three-Phase CWP Pattern
+
+For critical events like mouse and keyboard input, a three-phase pattern is available:
+
+```csharp
+public class MyView : View
+{
+    public bool ProcessMouseEvent(MouseEventArgs args)
+    {
+        // Phase 1: BeforeMouseEvent - External pre-processing
+        BeforeMouseEvent?.Invoke(this, args);
+        if (args.Handled) return true;
+        
+        // Phase 2: OnMouseEvent - View processing (virtual method)
+        if (OnMouseEvent(args) || args.Handled) return true;
+        
+        // Phase 3: MouseEvent - External post-processing
+        MouseEvent?.Invoke(this, args);
+        return args.Handled;
+    }
+}
+```
+
+**When to use each phase**:
+
+- **BeforeXxx**: Use when you need to prevent the view from processing the event
+  - Example: Disabling a slider when a modal dialog is open
+  - Example: Implementing global keyboard shortcuts
+
+- **OnXxx**: Override in derived classes to customize view behavior
+  - Example: Custom mouse handling in a custom view
+  - Example: Custom key handling in a specialized control
+
+- **Xxx**: Use for external observation and additional processing
+  - Example: Logging mouse activity
+  - Example: Implementing additional behavior without inheritance
+````
+
+### Testing Strategy
+
+1. **Unit Tests**: Add tests for new Before* events
+2. **Integration Tests**: Test interaction between phases
+3. **Scenario Tests**: Test #3714 scenario specifically
+4. **Regression Tests**: Ensure existing code still works
+5. **Documentation Tests**: Verify examples work
+
+### Benefits of This Approach
+
+1. **Solves #3714**: Users can now prevent Slider from handling mouse
+2. **Non-Breaking**: All existing code continues to work
+3. **Clear Intent**: "Before" explicitly means "external pre-processing"
+4. **Selective Application**: Add to problematic events, not all 33
+5. **Future-Proof**: Creates migration path to v3.0
+6. **Minimal Risk**: Additive only, no changes to existing behavior
+7. **Gradual Adoption**: Users can adopt at their own pace
+
+### Risks & Mitigations
+
+**Risk**: Three phases more complex than two
+**Mitigation**: Good documentation, clear examples, gradual rollout
+
+**Risk**: People still use wrong phase
+**Mitigation**: Intellisense XML docs explain when to use each
+
+**Risk**: Two patterns coexist
+**Mitigation**: Document clearly, provide migration examples
+
+## Alternative Considerations
+
+### Could We Just Fix Slider?
+
+No - this is a systemic issue. Any view that overrides `OnMouseEvent` has the same problem. Fixing just Slider doesn't help:
+- ListView
+- TextView
+- TableView
+- TreeView
+- ScrollBar
+- And 20+ others
+
+### Could We Change Slider To Not Override OnMouseEvent?
+
+Yes, but:
+- Still doesn't solve systemic issue
+- Other views have same problem
+- Not a general solution
+- Slider's implementation is reasonable
+
+### Could We Add Multiple Overload Virtual Methods?
+
+E.g., `OnMouseEventBefore` and `OnMouseEventAfter`?
+
+No - virtual methods can't solve this because:
+- External code can't override virtual methods
+- Virtual methods are for inheritance, not composition
+- Issue is specifically about external code priority
+
+## Implementation Checklist (Option 2)
+
+- [ ] **Week 1: Mouse Events**
+  - [ ] Add `BeforeMouseEvent` to View
+  - [ ] Add `BeforeMouseClick` to View
+  - [ ] Add `BeforeMouseWheel` to View
+  - [ ] Update `RaiseMouseEvent` to invoke BeforeMouseEvent
+  - [ ] Update `RaiseMouseClickEvent` to invoke BeforeMouseClick
+  - [ ] Update `RaiseMouseWheelEvent` to invoke BeforeMouseWheel
+  - [ ] Add unit tests for new events
+  - [ ] Test Slider scenario specifically
+
+- [ ] **Week 2: Documentation & Examples**
+  - [ ] Update `events.md` with three-phase pattern
+  - [ ] Update `cancellable-work-pattern.md` with new pattern
+  - [ ] Add examples showing how to use BeforeMouseEvent
+  - [ ] Add example solving #3714 specifically
+  - [ ] Update API docs (XML comments)
+
+- [ ] **Week 3: Keyboard Events (If Needed)**
+  - [ ] Assess if keyboard has similar issues
+  - [ ] Add `BeforeKeyDown` if needed
+  - [ ] Add unit tests
+  - [ ] Update documentation
+
+- [ ] **Week 4: Other Events (As Needed)**
+  - [ ] Assess other event patterns
+  - [ ] Add Before* events as needed
+  - [ ] Update documentation
+
+- [ ] **Week 5-6: Testing & Refinement**
+  - [ ] Integration testing
+  - [ ] Scenario testing
+  - [ ] User testing
+  - [ ] Bug fixes
+  - [ ] Documentation refinement
+
+## Conclusion
+
+**Recommended Solution**: **Option 2 - Add Before Events**
+
+This solution:
+✅ Solves issue #3714
+✅ Non-breaking change
+✅ Clear and understandable
+✅ Minimal risk
+✅ Provides migration path
+✅ Can be applied selectively
+
+Estimated effort: **2-3 weeks**
+Risk level: **LOW**
+
+The key insight is that we don't need to change the existing pattern - we can ADD to it. This preserves all existing behavior while enabling the new use cases that #3714 requires.
+
+## References
+
+- Issue #3714: Mouse event interception problem
+- Issue #3417: Related mouse event handling issue
+- `docfx/docs/events.md`: Current CWP documentation
+- `docfx/docs/cancellable-work-pattern.md`: CWP philosophy
+- `Terminal.Gui/ViewBase/View.Mouse.cs`: Mouse event implementation
+- `Terminal.Gui/ViewBase/View.Keyboard.cs`: Keyboard event implementation
+- `Terminal.Gui/App/CWP/CWPWorkflowHelper.cs`: CWP helper class