The number of extension types in the enumeration.
[Visual Basic .NET] Public ReadOnly Property Count As Integer
[C#] public int Count {get;}
[C++]
HRESULT get_Count(
long* pVal
);
[C++]Parameters
pVal [out, retval] pVal is a parameter of type long
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.