ModelElementExtensionMethods::AddExtension Method (ModelElement^, Guid)
Visual Studio 2015
Extend this ModelElement with newly instantiated extension of the identified domain type. An InvalidOperationException will be thrown if the element already has an extension of that type.
Assembly: Microsoft.VisualStudio.Modeling.Sdk.12.0 (in Microsoft.VisualStudio.Modeling.Sdk.12.0.dll)
public: [ExtensionAttribute] static ExtensionElement^ AddExtension( ModelElement^ element, Guid extensionClassId )
Parameters
- element
-
Type:
Microsoft.VisualStudio.Modeling::ModelElement^
ModelElement to be extended
- extensionClassId
-
Type:
System::Guid
The domain class id of the type of ExtensionElement to be added
Return Value
Type: Microsoft.VisualStudio.Modeling::ExtensionElement^The newly instantiated and added extension
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