共用方式為

ModelTransformExtensionContext 類別

  • 發行項

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.

命名空間: Microsoft.Data.Entity.Design.Extensibility
組件: Microsoft.Data.Entity.Design.Extensibility (於 microsoft.data.entity.design.extensibility.dll)

使用方式

語法

'宣告
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

備註

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.

繼承階層

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

執行緒安全性

任何這個類型的公用靜態 (在 Visual Basic 中為 共用) 成員都具備執行緒安全。 不保證任何執行個體成員安全執行緒。

平台

開發平台

Windows XP Home Edition, Windows XP Professional, Windows Server 2003 、Windows Server 2008 和 Windows 2000

目標平台

另請參閱

參考

ModelTransformExtensionContext 成員
Microsoft.Data.Entity.Design.Extensibility 命名空間

其他資源

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