UndoRedoManager Class

Represents the manager of the undo actions for the FpChart component.

UndoRedoManager

public class UndoRedoManager

Public Class UndoRedoManager

Name	Description
UndoRedoManager(FpChart, int)	Creates a new undo action manager.

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).

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.

Name	Description
Clear()	Clears out current Undo and Redo stacks
PerformUndoAction(UndoAction)	Performs the specified action (it can then be undone with Undo).
PopRedo()	Pops the top action from the redo stack.
PopUndo()	Pops the top action from the undo stack.
PushRedo(UndoAction)	Pushes the specified action onto the redo stack.
PushUndo(UndoAction, bool)	Pushes the specified action onto the undo stack.
Redo()	Redoes the last action undone with Undo and adds it to the undo list.
Redo(UndoAction)	Redoes all actions in the redo stack up to and including the specified action and adds it to the undo list.
Redo(int)	Redoes the specified number of actions and adds them to the undo list.
Undo()	Undoes the last action done with PerformUndoAction and adds it to the redo list.
Undo(UndoAction)	Undoes all actions in the undo stack up to and including the specified action and adds it to the redo list.
Undo(int)	Undoes the specified number of actions and adds them to the redo list.

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.