Skip to main content

DiagramControl.ItemContentChanged Event

Fires each time the end-user changes the item’s text.

Namespace: DevExpress.Xpf.Diagram

Assembly: DevExpress.Xpf.Diagram.v22.2.dll

NuGet Package: DevExpress.Wpf.Diagram


public event EventHandler<DiagramItemContentChangedEventArgs> ItemContentChanged

Event Data

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

Property Description
ActionType Indicates whether the text has been changed directly or using the Undo/Redo operations.
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.
Item Returns the diagram item whose content is being changed.
NewValue Returns the new item’s text.
OldValue Returns the previous item’s text.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

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. 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.


Changing the item’s text using the Properties Panel does not raise the event.

See Also