The authority key name (letter) or user level (number).
Return Value
Type:
Boolean
FALSE - no permission. TRUE - permission is granted.
If an authority key name is specified, it will determine whether the authority exists. If a user level is specified, it will determine whether the specified level is met (whether the level value of the currently logged-in user is equal to or lower than the value specified in the argument).
Specify the authority key and set the authority value. When determining based on user level, the smaller the number, the higher the user level will be.
By specifying this in the binding expression for the Enabled property of Button control, you can set restrictions on operations based on permissions.