Determines whether this user name token info is a null token info.
DISPID (Dispatch ID):
For more information, see IsNull in .NET Reference.
 
            
DISPID (Dispatch ID):
For more information, see IsNull in .NET Reference.
| Visual Basic | 
|---|
| Public Property IsNull As Boolean | 
See IsNull in .NET Reference.
For remarks, see IsNull in .NET Reference.
For examples, see IsNull in .NET Reference.