Allowed: Boolean;
The Allowed property determines whether the action is allowed.
If the property is set to False, the action is prohibited. The property is set to True by default.
This property is used in the following cases:
To determine the access to edit the element text in the OnEditing event.
To determine access to change the state of element checkbox in the OnChecking event.
To determine whether it is possible to change the focused element in the OnFocusChanging event.
To determine whether it is possible to change elements selection in the OnSelectingItem event.
See also: