method Chart.Undo ()
Performs the last Undo operation.

 TypeDescription 
Call the Undo method to Undo the last chart operation. The Undo method have effect only if the AllowUndoRedo property is True. The CTRL+Z performs the last undo operation, while the CTRL+Y redoes the next action in the chart's Redo queue. The Redo redoes the next action in the chart's redo queue.  The CanUndo property retrieves a value that indicates whether the chart may perform the last Undo operation. The CanRedo property retrieves a value that specifies whether the chart can execute the next operation in the chart's Redo queue. The ChartStartChanging(exUndo/exRedo) / ChartEndChanging(exUndo/exRedo) event notifies your application whenever an Undo/Redo operation is performed. 

The Undo/Redo manager of the chart records operations in the following format:

The UndoListAction property lists the Undo actions that can be performed in the chart. Use the UndoRemoveAction method to remove the last actions from the undo queue.

 


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