This example demonstrates three different techniques to handle frequent updates in the GridControl.
Use the ChunkList collection and optimized summaries to improve the speed of individual updates.
- MainWindow.xaml (VB: MainWindow.xaml)
- ChunkAndOptSummariesViewModel.cs (VB: ChunkAndOptSummariesViewModel.vb)
Wrap data update batches in BeginDataUpdate and EndDataUpdate methods calls. The BeginDataUpdate method locks the GridControl's UI and allows you to execute multiple updates. The EndDataUpdate call unlocks updates and refreshes the GridControl. In this example, a custom MVVM service calls these methods from the view model level (GridUpdateService).
- GridUpdateService.cs (VB: GridUpdateService.vb)
- BeginEndUpdateViewModel.cs (VB: BeginEndUpdateViewModel.vb)
- MainWindow.xaml (VB: MainWindow.xaml)
Set the AllowLiveDataShaping property to false and use a collection that doesn't support notifications (for example, List<T>) to ignore data shaping operations when data is changed. Call the GridControl.RefreshData method to display all changes in the control. In this example, a custom behavior refreshes the GridControl each second (GridTimerRefreshBehavior).
- GridTimerRefreshBehavior.cs (VB: GridTimerRefreshBehavior.vb)
- RefreshDataViewModel.cs (VB: RefreshDataViewModel.vb)
- MainWindow.xaml (VB: MainWindow.xaml)
- WPF Data Grid - Call the BeginDataUpdate and EndDataUpdate Methods at the View Model Level
- Data Grid for WPF - Refresh the Data Grid on a Timer
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