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V22.1

TreeViewControl.StartSorting Event

Occurs before the TreeViewControl starts a sort operation.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v22.1.dll

Declaration

public event RoutedEventHandler StartSorting

Event Data

The StartSorting event's data class is RoutedEventArgs. The following properties provide information specific to this event:

Property Description
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class.
RoutedEvent Gets or sets the RoutedEvent associated with this RoutedEventArgs instance.
Source Gets or sets a reference to the object that raised the event.

The event data class exposes the following methods:

Method Description
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.
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.

Remarks

The TreeViewControl sorts its data as follows:

  • Raises the StartSorting event.
  • Sorts data.
  • Raises the EndSorting event.
See Also