Lists actions which changed the cell value.
End-user has modified the cell value using worksheet editors.
Cell value has been changed by executing the undo or redo command.
New value has been pasted into the cell.
Cell value has been modified programmatically.
The CellValueChangedAction enumeration member is the value of the SpreadsheetCellEventArgs.Action property used to identify the action which triggered the SpreadsheetControl.CellValueChanged event.