Allows you to validate rows, check database constraints, and delete rows from the database before a user deletes a row from the Data Grid.
NuGet Package: DevExpress.Wpf.Grid.Core
public event EventHandler<GridValidateRowDeletionEventArgs> ValidateRowDeletion
Public Event ValidateRowDeletion As EventHandler(Of GridValidateRowDeletionEventArgs)
The ValidateRowDeletion event's data class is GridValidateRowDeletionEventArgs. The following properties provide information specific to this event:
|DisplayErrorMode||Gets or sets whether to display an error message.|
|Handled||Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.|
|OriginalSource||Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.|
|Result||Gets or sets information about the error (its type and description).|
|ResultAsync||Gets or sets a task that asynchronously deletes rows from the underlying data source (database).|
|RoutedEvent||Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.|
|RowHandles||Gets handles of rows that a user wants to delete.|
|Rows||Gets rows that a user wants to delete.|
|Source||Gets a control (GridControl or TreeListControl) that raised the event.|
The event data class exposes the following methods:
|InvokeEventHandler(Delegate, Object)||When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.|
|OnSetSource(Object)||When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.|
You can implement CRUD operations (create, read update, delete). These operations allow users to manage data in the Data Grid. Refer to the following topic for more information: Implement CRUD Operations in a Data-Bound Grid.
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the ValidateRowDeletion event.
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