wpf-devexpress-dot-xpf-dot-grid-dot-treelist-bbf751e7.md
Provides data for the TreeListView.ValidateNode event.
Namespace : DevExpress.Xpf.Grid.TreeList
Assembly : DevExpress.Xpf.Grid.v25.2.dll
NuGet Package : DevExpress.Wpf.Grid.Core
public class TreeListNodeValidationEventArgs :
GridRowValidationEventArgs,
IDataRowEventArgs
Public Class TreeListNodeValidationEventArgs
Inherits GridRowValidationEventArgs
Implements IDataRowEventArgs
TreeListNodeValidationEventArgs is the data class for the following events:
Node validation is performed within the TreeListNodeValidationEventArgs event handler. This event is automatically fired when a node is about to lose focus.
The processed node is returned by the event parameter’s TreeListNodeValidationEventArgs.Node property. After cell values have been obtained, you can verify whether these values meet your validity criteria. If the node fails validation, set the event’s ValidationEventArgs.IsValid parameter to false. Otherwise, leave this parameter set to true.
Object EventArgs RoutedEventArgs ValidationEventArgs GridRowValidationEventArgs TreeListNodeValidationEventArgs
See Also