The following tables list the members exposed by UndoRedoManager.
Public Constructors
| Name | Description | |
|---|---|---|
 | UndoRedoManager Constructor | Creates a new undo action manager. |
Protected Fields
| Name | Description | |
|---|---|---|
 | actionPending | Specifies whether an action is in progress (to prevent recursion). |
| chart | Fpchart control which can be used to fire events when executing actions. |
| maxLength | Specifies the maximum number of UndoAction objects to keep on the undo or redo stacks. |
| redoList | Specifies the redo stack (last element is on top). |
| undoList | Specifies the undo stack (last element is on top). |
Public Properties
| Name | Description | |
|---|---|---|
 | CanRedo | Gets whether Redo manager can redo an action, which depends on redo list is empty or not. |
| CanUndo | Gets whether Undo manager can undo an action, which depends on undo list is empty or not. |
Public Methods
| Name | Description | |
|---|---|---|
 | Clear | Clears out current Undo and Redo stacks |
| PerformUndoAction | Performs the specified action (it can then be undone with Undo). |
| Redo | Overloaded. Redoes the last action undone with Undo and adds it to the undo list. |
| Undo | Overloaded. Undoes the last action done with PerformUndoAction and adds it to the redo list. |
Protected Methods
| Name | Description | |
|---|---|---|
 | PopRedo | Pops the top action from the redo stack. |
| PopUndo | Pops the top action from the undo stack. |
| PushRedo | Pushes the specified action onto the redo stack. |
| PushUndo | Pushes the specified action onto the undo stack. |
Public Events
| Name | Description | |
|---|---|---|
 | ActionComplete | Occurs when the undo or redo action is complete. |
| ActionPerforming | Occurs when the undo or redo action is performing, users can cancel this action. Actions are cancelled are not added to the undo list. |
| RedoComplete | Occurs when the redo action is complete. |
| RedoPerforming | Occurs when the redo action is performing, user can cancel this redo action. Cancelled redo action are not added to undo list and are not removed from redo list. |
| UndoComplete | Occurs when the undo action is complete. |
| UndoPerforming | Occurs when the undo action is performing, user can cancel this undo action. Cancelled undo action are not added to redo list and are not removed from undo list. |