Extend the specified ModelElement with a specified extension. An InvalidOperationException will be thrown if the element already has an extension of the same type.
Namespace: Microsoft.VisualStudio.Modeling
Assembly: Microsoft.VisualStudio.Modeling.Sdk.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.10.0.dll)
Syntax
声明
Public Shared Function AddExtension ( _
element As ModelElement, _
extension As ExtensionElement _
) As ExtensionElement
public static ExtensionElement AddExtension(
ModelElement element,
ExtensionElement extension
)
public:
static ExtensionElement^ AddExtension(
ModelElement^ element,
ExtensionElement^ extension
)
static member AddExtension :
element:ModelElement *
extension:ExtensionElement -> ExtensionElement
public static function AddExtension(
element : ModelElement,
extension : ExtensionElement
) : ExtensionElement
Parameters
- element
Type: Microsoft.VisualStudio.Modeling.ModelElement
ModelElement to be extended
- extension
Type: Microsoft.VisualStudio.Modeling.ExtensionElement
The ExtensionElement to be added
Return Value
Type: Microsoft.VisualStudio.Modeling.ExtensionElement
The added extension
Remarks
Although attempts to add a duplicate extension type are caught here, there are other cases where extensions may clash by contributing duplicate properties or roles, for example when two extensions are added that inherit from a common base that defines IMS properties and/or roles. Such cases are detected by IMergeElements implementation on ModelElement, but not by this low-level API
.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.