UndoEngine Class

.NET Framework (current version)
 

Provides undo and redo operation implementations for designers.

Namespace:   System.Activities.Presentation
Assembly:  System.Activities.Presentation (in System.Activities.Presentation.dll)

System.Object
  System.Activities.Presentation.UndoEngine

public class UndoEngine

NameDescription
System_CAPS_pubmethodUndoEngine(EditingContext)

Initializes a new instance of the UndoEngine class.

NameDescription
System_CAPS_pubpropertyIsUndoRedoInProgress

Gets a Boolean value that indicates whether an undo or redo operation is in progress.

NameDescription
System_CAPS_pubmethodAddUndoUnit(UndoUnit)

Adds the specified unit to the undo stack.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetRedoActions()

Retrieves an IEnumerable<T> collection of redo operations.

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodGetUndoActions()

Retrieves an IEnumerable<T> collection of undo operations.

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodRedo()

Removes the last UndoUnit instance from the redo stack, and performs a redo operation on the unit. The UndoUnit instance is then put into the undo stack.

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubmethodUndo()

Removes the last UndoUnit instance from the undo stack, and performs an undo operation on the unit. The UndoUnit instance is then put into the redo stack.

NameDescription
System_CAPS_pubeventRedoCompleted

Occurs when the redo operation is completed.

System_CAPS_pubeventUndoCompleted

Occurs when the undo operation is completed.

System_CAPS_pubeventUndoRedoBufferChanged

Occurs when the buffers that hold undo and redo operations change.

System_CAPS_pubeventUndoUnitAdded

Occurs when an undo unit is added to the undo stack.

System_CAPS_pubeventUndoUnitCancelled

Occurs when an undo unit is cancelled from the undo stack.

System_CAPS_pubeventUndoUnitDiscarded

Occurs when an undo unit is removed from the undo stack, without first performing an undo operation.

.NET Framework
Available since 4.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Return to top
Show: