ModelFileExtensionAttribute 類別

Specifies a custom file extension that can be loaded or saved 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
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple:=False)> _
<MetadataAttributeAttribute> _
Public NotInheritable Class ModelFileExtensionAttribute
    Inherits Attribute

[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple=false)] 
[MetadataAttributeAttribute] 
public sealed class ModelFileExtensionAttribute : Attribute

[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple=false)] 
[MetadataAttributeAttribute] 
public ref class ModelFileExtensionAttribute sealed : public Attribute

/** @attribute AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple=false) */ 
/** @attribute MetadataAttributeAttribute() */ 
public final class ModelFileExtensionAttribute extends Attribute

AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple=false) 
MetadataAttributeAttribute 
public final class ModelFileExtensionAttribute extends Attribute

備註

In a Visual Studio extension, the ModelFileExtensionAttribute is used when extending the functionality of the Entity Data Model Designer (Entity Designer). Specifically, the ModelFileExtensionAttribute is used to annotate classes that implement the IModelConversionExtension interface. The ModelFileExtensionAttribute constructor accepts a string parameter that specifies the file extension for custom files that can be loaded and saved by the Entity Designer.

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
   System.Attribute
    Microsoft.Data.Entity.Design.Extensibility.ModelFileExtensionAttribute

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

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

其他資源

Visual Studio Extensibility Developer Center
Developing Visual Studio Extensions