Course Summary:

• Build a WPF application:

  • Create a user interface in XAML;
  • Use data binding;
  • Apply the MVVM pattern;
  • Validate user input;

• Work with different WPF features:

  • Define resources;
  • Create data templates;
  • Use styles;
  • Edit control templates;

• Debug your WPF application

module 2 - Creating your first WPF Application

• WPF is a UI framework that is part of .NET:
  • Build desktop apps for Windows;
• Define user interface with XAML
• The main windows consists of multiple files:
  • MainWindow.xaml;
  • MainWindow.xaml.cs (code-behind);
  • More file are generated in obj/Debug;

module 3 - Instantiating objects in XAML

• Elements are mapped to classes:

  • Except property element;

• Attributes are mapped to properties events

• Set properties in XAML:

  • Attribute syntax;
  • Property element syntax;
  • Content syntax;
  • Collection syntax;

module 4 - Building a User Interface

• Use the WPF layout panels:
  • Grid, StackPanel, Canvas;
• Position elements with layout properties
• Set attached properties in:
  • XAML
  • C#

module 5 - Organize code with UserControls

• Organize code with UserControls:
  • Create and use a UserControl for the header;
  • Refactor code in the MainWindow to extract a UserControl for customers;
• Understand the XAML namespaces of WPF

module 6 - Applying Data Binding and MVVM

• Create data bindings in XAML:

  • Bind to another element
  • Know how the data context works

• Apply the MVVM pattern

• Work with data bindings:

  • Notify about property changes
  • Use the XAML Binding Failures window
  • Convert values with an IValueConverter

module 7 - Execute Code with Commands

• Understand the ICommand interface;
• Create a DelegateCommand class;
• Use the DelegateCommand class
  • Define command properties
  • Bind the view to command properties
  • Raise CanExecuteChanged event

module 8 - Creating Reusable Resources

• Define resources in XAML:
  • Elements have a Resources property
• Reference resources with the StaticResource markup extension:
  • Resources are searched upwards in the element tree
  • Create application-wide resources in the App.xaml file
• Move resources to a separate file
• Merge multiple resources dictionaries

module 9 - Working with Data Templates

• WPF's flexible content model
  • ContentControl and ItemsControl;
  • UIElements are rendered;
  • For other objects ToString result is shown;
• Create and use data templates
  • Explicit data template with x:Key;
  • Implicit data template with DataType;
• Use data templates to load detail views

module 10 - Setting up Dependency Injection

• Register and use another type with dependency injection;

Summary:

• Instantiate the MainWindows in c#;
• Set up dependency injection
  • Microsoft.Extensions.DependencyInjection (NuGet package)

module 11 - Styling Your Application

• Work with styles in WPF

  • Define property values with a style;
  • Inherit a style from another style;
  • Understand explicit and implicit styles;

• Use Property Triggers in a Style;

module 12 - Mastering Control Templates

• User controls and custom controls:

  • User controls are the components that you build in your application;
  • All WPF controls are custom controls;

• Change the look of a custom control:

  • Set the Template property;
  • Create a copy of the control template;
  • Adjust the control template;

module 13 - Validating User Input

• Validate the firstname of a customer:

  • Create a ValidationViewModelBase Class;
  • Implement INotifyDataErrorInfo;

• Show the Error in the User Interface:

  • In a tooltip;
  • Below the TextBox;

• Binding sets attached properties:

  • Validation.HasError

module 14 - Debugging Your WPF Application

• Use the XAML debugging tools
  • Explore the Live Visual Tree
  • Inspect Properties at Runtime
• Analyze and explore WPF applications