Assigns a delegate to the columnEditing event.
public void addOnColumnEditing( ColumnEditingEventHandler handler )
handler
The ColumnEditingEventHandler delegate to be notified when the event occurs.
The columnEditing event occurs when a cell enters edit mode. For more information, see the DataGrid Control overview.
Canceling the columnEditing event exits the cell's edit mode and prevents the updating, columnUpdating, updated, columnUpdated, and columnEdited events from occurring.
See Also removeOnColumnEditing