A long expression that indicates the index of the editor being removed, a string
expression that indicates the key of the editor being removed.
Use the Remove method to remove an editor. Use the RemoveAll
method to remove all editors in the control. Use the Add
method to add new editors to the control. Use the RemoveItem
property to remove a predefined value from a drop down list editor. Use the RemoveButton
method to remove a button from an editor.
