Indicates true if current token is a property value or array value and equals to null.
[Visual Basic .NET] Public Function IsNull ( _ ) As Boolean
[C#] public bool IsNull ( );
[C++]
HRESULT IsNull(
VARIANT_BOOL* pVal
);
[C++]Parameters
pVal [out, retval] pVal is a parameter of type VARIANT_BOOL
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.