The control's context meu is called if user right clicks the control's client area. By default, the AllowContextMenu property is True. Use the AllowContextMenu property to disable the default context menu. Use the ContextMenuItems property to add new entries to the control's context menu. Use the Caption property to change the captions in the control's default context menu.

The control's context menu contains by default the following items:

• Undo ( Removes the last expression control operation ).
• Redo ( Redoes the next action in the control's redo queue ).
• Cut ( Delete (cuts) the current selection (if any) in the expression control and copies the deleted text to the clipboard ).
• Copy ( Copies the current selection (if any) in the expression control to the Clipboard ).
• Paste ( Inserts the data from the Clipboard into the expression control at the insertion point, the location of the caret ).
• Delete ( Deletes the current selection ).
• Select All ( Selects the entire document ).

An item is disabled if the respective operation is not available in the context.