ExtensionContext 類別

A base class for the ModelGenerationExtensionContext, PropertyExtensionContext, ModelTransformExtensionContext and ModelConversionExtensionContext classes.

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 ExtensionContext

public abstract class ExtensionContext

public ref class ExtensionContext abstract

public abstract class ExtensionContext

public abstract class ExtensionContext

備註

The ExtensionContext class is an abstract base class that is used to extend the functionality of the ADO.NET Entity Data Model Tools. Derived classes provide file and project information to Visual Studio extensions. For more information, see Extending the Entity Data Model Tools. 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.

The following classes are implementations of the ExtensionContext class:

• ModelGenerationExtensionContext

  注意：
  The UpdateModelExtensionContext class is an implementation of ModelGenerationExtensionContext.

• ModelTransformExtensionContext

• ModelConversionExtensionContext

繼承階層

System.Object
  Microsoft.Data.Entity.Design.Extensibility.ExtensionContext
     Microsoft.Data.Entity.Design.Extensibility.ModelConversionExtensionContext
     Microsoft.Data.Entity.Design.Extensibility.ModelGenerationExtensionContext
     Microsoft.Data.Entity.Design.Extensibility.ModelTransformExtensionContext
     Microsoft.Data.Entity.Design.Extensibility.PropertyExtensionContext

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

Change History

另請參閱

參考

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

其他資源

Extending the Entity Data Model Tools
Visual Studio Extensibility Developer Center