EnumerableToDispatchMarshaler Class

Marshals the COM IDispatch interface to the .NET Framework IEnumerable interface, and vice versa.

Namespace: System.Runtime.InteropServices.CustomMarshalers
Assembly: CustomMarshalers (in custommarshalers.dll)

public class EnumerableToDispatchMarshaler : ICustomMarshaler
public class EnumerableToDispatchMarshaler implements ICustomMarshaler
public class EnumerableToDispatchMarshaler implements ICustomMarshaler
Not applicable.

This custom marshaler marshals IDispatch to IEnumerable and marshals IEnumerable to IDispatch when a member with a DISPID of -4 exists. When you use the Type Library Importer (Tlbimp.exe) to create a class that implements IEnumerable , the CLR uses this custom marshaler automatically to bridge COM enumerators and .NET enumerators. Calling GetEnumerator results in IDispatch.Invoke being called with a DISPID of -4, and vice versa.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0