ComDefaultInterfaceAttribute Class
Assembly: mscorlib (in mscorlib.dll)
'Declaration <AttributeUsageAttribute(AttributeTargets.Class, Inherited:=False)> _ <ComVisibleAttribute(True)> _ Public NotInheritable Class ComDefaultInterfaceAttribute Inherits Attribute 'Usage Dim instance As ComDefaultInterfaceAttribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Class, Inherited=false) */ /** @attribute ComVisibleAttribute(true) */ public final class ComDefaultInterfaceAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Class, Inherited=false) ComVisibleAttribute(true) public final class ComDefaultInterfaceAttribute extends Attribute
Compilers do not necessarily respect the order in which interfaces are implemented. For example, suppose you have the following code:
interface IBase {}interface IDerived : IBase {}class MyClass : IBase, IDerived {}
The compiler emits the implemented interfaces as IDervied, IBase. The ordering of interfaces is important when using the ClassInterfaceAttribute class with [ClassInterface(ClassInterfaceType.None)] to expose an explicit interface as the default interface. Regardless of the specified ClassInterfaceType, use the ComDefaultInterfaceAttribute attribute to specify which interface should be recognized as the default.
Note that the type decorated by the ComDefaultInterfaceAttribute must actually derive from the interface specified as the default interface.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.