Gets the contract type that is exported by the member that this attribute is attached to.
Assembly: System.ComponentModel.Composition (in System.ComponentModel.Composition.dll)
Property ValueType: System.Type
The type of export that is be provided. The default value is a null reference (Nothing in Visual Basic), which means that the type will be obtained by looking at the type on the member that this export is attached to.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.