ModelConversionExtensionContext-Klasse

Artikel
04/28/2011

Provides file and project information to Visual Studio extensions that enable the loading and saving of custom file formats.

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 ModelConversionExtensionContext
    Inherits ExtensionContext

public abstract class ModelConversionExtensionContext : ExtensionContext

public ref class ModelConversionExtensionContext abstract : public ExtensionContext

public abstract class ModelConversionExtensionContext extends ExtensionContext

public abstract class ModelConversionExtensionContext extends ExtensionContext

Hinweise

In a Visual Studio extension, use the ModelConversionExtensionContext class to enable the Entity Data Model Designer (Entity Designer) to load and save files with a custom format. An instance of ModelConversionExtensionContext is passed to the IModelConversionExtension.OnAfterFileLoaded method or the IModelConversionExtension.OnBeforeFileSaved method, which define how custom file formats will be loaded and saved.

By default, the Entity Designer loads and saves .edmx files. The IModelConversionExtension class enables the Entity Designer to load and save files that have a different format. The IModelTransformExtension class, by contrast, transforms an .edmx file before it is displayed in the Entity Designer and before it is saved. 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.ModelConversionExtensionContext

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

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

Weitere Ressourcen

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

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