The following tables list the members exposed by UndoManager.
| Name | Description | |
|---|---|---|
 | UndoManager Constructor | Initializes a new UndoManager |
| Name | Description | |
|---|---|---|
 | AllowMerging | Returns or sets a boolean indicating if the UndoUnit.Merge method may be used to merge changes. |
| CanRedo | Returns a boolean indicating if there is an operation that can be redone. |
| CanUndo | Returns a boolean indicating if there is an operation that can be undone. |
 | Current | Returns a thread static singleton instance of an UndoManager. |
| CurrentHistoryItem | Returns the UndoHistoryItem from the UndoHistory or RedoHistory that is currently being executed or null if no undo/redo is in progress. |
| CurrentTransaction | Returns the current open leaf UndoTransaction |
| IsPerformingRedo | Returns a boolean indicating if the manager is performing a redo operation. |
| IsPerformingRollback | Returns a boolean indicating if the UndoManager is performing a Rollback of a UndoTransaction |
| IsPerformingUndo | Returns a boolean indicating if the manager is performing an undo operation. |
| IsSuspended | Returns a boolean indicating if the recording of UndoUnit instances in the history has been suspended using the Suspend method. |
| MergeTimeout | Returns the amount of time since the last operation that a UndoUnit.Merge will be allowed. |
| RedoHistory | Returns a read-only collection of the items in the redo history. |
| RootTransaction | Returns the outermost current open transaction or null if there is currently no transaction open. |
| TopRedoHistoryItem | Returns the next item on the top of the RedoHistory |
| TopUndoHistoryItem | Returns the next item on the top of the UndoHistory |
| UndoHistory | Returns a read-only collection of the items in the undo history. |
| UndoLimit | Returns or sets the maximum number of items to maintain within the undo/redo history. |
| UndoUnitFactory | Returns or sets an object that is used to create the default UndoUnit instances for this UndoManager |
| UndoUnitFactoryResolved | Read-Only property that returns the UndoUnitFactory that the UndoManager uses to create the UndoUnit units. |
| Name | Description | |
|---|---|---|
 | HasListeners | Gets whether there are any listeners for the PropertyChanged event (Inherited from Infragistics.PropertyChangeNotifier) |
| Name | Description | |
|---|---|---|
 | AddChange | Overloaded. Adds an UndoUnit to the history. |
| AddCollectionChange | Overloaded. Adds an UndoUnit for the specified replace collection change to the undo history. |
| AddPropertyChange | Overloaded. Adds an PropertyChangeUndoUnitBase for the specified property value change to the undo history. |
| ClearHistory | Clears the undo and redo history. |
| ExecuteInTransaction | Overloaded. Executes the specified action within an UndoTransaction |
| ForEach | Performs the specified action on each UndoUnit within the undo and redo history. |
| FromReference | Used to obtain the UndoManager instance that has been registered with a given object. |
| PreventMerge | Used to ensure that the next UndoUnit that is recorded is not allowed to merge with the last operation on the UndoHistory. |
| Redo | Performs one or more redo operations from the current history. |
| RegisterReference | Used to associate an object with a given UndoManager |
| RemoveAll | Removes all the matching UndoUnit instances from the UndoHistory and RedoHistory collections. |
| Resume | Resumes the recording of UndoUnit instances in the history. |
| StartTransaction | Overloaded. Used to start a new transaction that will group one or more UndoUnit actions. |
| Suspend | Suspends the recording of UndoUnit instances in the history. |
| Undo | Performs one or more undo operations from the current history. |
| UnregisterReference | Used to remove an registration for an object that was registered with this UndoManager instance via the RegisterReference method. |
| Name | Description | |
|---|---|---|
 | OnFirstListenerAdding | Virtual method called when the first listener is being added to the PropertyChanged event. (Inherited from Infragistics.PropertyChangeNotifier) |
| OnHasListenersChanged | Virtual method called when the HasListeners property changes. (Inherited from Infragistics.PropertyChangeNotifier) |
| OnPropertyChanged | Used to raise the PropertyChanged event for the specified property name. (Inherited from Infragistics.PropertyChangeNotifier) |
| Name | Description | |
|---|---|---|
 | PropertyChanged | Raised when a property has changed (Inherited from Infragistics.PropertyChangeNotifier) |