ModelElementExtensionMethods.AddExtension<T> Method (ModelElement)

Article
11/24/2013

Extend this ModelElement with a newly instantiated extension of a particular type. An InvalidOperationException will be thrown if the element already has an extension of the same type.

Namespace: Microsoft.VisualStudio.Modeling.Extensibility
Assembly: Microsoft.VisualStudio.Modeling.Sdk.12.0 (in Microsoft.VisualStudio.Modeling.Sdk.12.0.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function AddExtension(Of T As ExtensionElement) ( _
    element As ModelElement _
) As T

public static T AddExtension<T>(
    this ModelElement element
)
where T : ExtensionElement

[ExtensionAttribute]
public:
generic<typename T>
where T : ExtensionElement 
static T AddExtension(
    ModelElement^ element
)

static member AddExtension : 
        element:ModelElement -> 'T  when 'T : ExtensionElement

JScript does not support generic types or methods.

Type Parameters

T
The type of ExtensionElement to be added

Parameters

element
Type: Microsoft.VisualStudio.Modeling.ModelElement

ModelElement to be extended

Return Value

Type: T
The newly instantiated and added extension

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ModelElement. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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