DiagramControl.ItemContentChanged Event

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

Namespace: DevExpress.Xpf.Diagram

Assembly: DevExpress.Xpf.Diagram.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Diagram, DevExpress.Wpf.Diagram

Declaration

C#

public event EventHandler<DiagramItemContentChangedEventArgs> ItemContentChanged

VB.NET

Public Event ItemContentChanged As EventHandler(Of DiagramItemContentChangedEventArgs)

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.

Remarks

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