IsNameDefined
Determines whether there is a logon name defined for this user in this zone.
Syntax
bool IsNameDefined {get; set;}
Property value
Returns true
if there is a logon name defined for this user. Set this property
false
to clear the logon name.
Exceptions
IsNameDefined
throws an InvalidOperationException
if the name has not been
defined and you attempt to set this property true
.