ModelTransformExtensionContext-Klasse

Provides file and project information to Visual Studio extensions that extend the file loading and saving of .edmx files by the Entity Data Model Designer.

Namespace: Microsoft.Data.Entity.Design.Extensibility
Assembly: Microsoft.Data.Entity.Design.Extensibility (in microsoft.data.entity.design.extensibility.dll)

Verwendung

Syntax

'Declaration
Public MustInherit Class ModelTransformExtensionContext
    Inherits ExtensionContext

public abstract class ModelTransformExtensionContext : ExtensionContext

public ref class ModelTransformExtensionContext abstract : public ExtensionContext

public abstract class ModelTransformExtensionContext extends ExtensionContext

public abstract class ModelTransformExtensionContext extends ExtensionContext

Hinweise

In a Visual Studio extension, the ModelTransformExtensionContext class is used when you want to extend the loading and saving of .edmx files by the Entity Data Model Designer (Entity Designer). An instance of ModelTransformExtensionContext is passed to the OnAfterModelLoaded or OnBeforeModelSaved methods, which define custom file loading and saving functionality of .edmx files.

By default, the Entity Designer loads and saves .edmx files. The IModelTransformExtension class transforms an .edmx file before it is displayed in the Entity Designer and before it is saved. The IModelConversionExtension class, by contrast, enables the Entity Designer to load and save files with a different format. These two classes can be used together in the same Visual Studio extension.

For more information about extending the functionality of the ADO.NET Entity Data Model Tools, see Extending the Entity Data Model Tools and ADO.NET Entity Data Model Designer Extension Starter Kit.

Vererbungshierarchie

System.Object
   Microsoft.Data.Entity.Design.Extensibility.ExtensionContext
    Microsoft.Data.Entity.Design.Extensibility.ModelTransformExtensionContext

Threadsicherheit

Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht sichergestellt.

Plattformen

Entwicklungsplattformen

Windows XP Home Edition, Windows XP Professional, Windows Server 2003 , Windows Server 2008 und Windows 2000

Zielplattformen

Siehe auch

Verweis

ModelTransformExtensionContext-Member
Microsoft.Data.Entity.Design.Extensibility-Namespace

Weitere Ressourcen

Visual Studio Extensibility Developer Center
Developing Visual Studio Extensions
.edmx File Overview