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