The filter string used in the CFileDialog class.
[Visual Basic .NET] Public ReadOnly Property Filter As String
[C#] public string Filter {get;}
[C++]
HRESULT get_Filter(
BSTR* Filter
);
[C++]Parameters
Filter [out, retval] Filter is a parameter of type BSTR
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.