UndoManager Property (DiagramModel)

Gets or sets the UndoManager for this model.

Syntax

Visual Basic (Declaration)
C#

<DescriptionAttribute("The UndoManager for this model.")>
Public Property UndoManager As UndoManager

[DescriptionAttribute("The UndoManager for this model.")]
public UndoManager UndoManager {get; set;}

Property Value

This value may be null, when there is no UndoManager. By default this value is null. If this value is null, it is automatically set to a new UndoManager when HasUndoManager is changed to be true.

Remarks

Of course, when there is no UndoManager, the user cannot perform an Undo or a Redo. Setting this property does not raise a Changed event. Setting this property may also change the value of HasUndoManager.

Requirements

Reference

DiagramModel Class
DiagramModel Members
HasUndoManager Property
SkipsUndoManager Property