通过

EntityDesignerExtendedPropertyAttribute 类

  • 项目

Specifies objects in the Entity Data Model Designer or the Model Browser that, when selected by a user, cause the CreateProperty method of the annotated class to be called.

命名空间: Microsoft.Data.Entity.Design.Extensibility
程序集： Microsoft.Data.Entity.Design.Extensibility（在 microsoft.data.entity.design.extensibility.dll 中）

用法

语法

声明
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple:=False)> _
<MetadataAttributeAttribute> _
Public NotInheritable Class EntityDesignerExtendedPropertyAttribute
    Inherits Attribute

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

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

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

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

备注

In a Visual Studio extension, the EntityDesignerExtendedPropertyAttribute is used when extending the functionality of the Entity Data Model Designer (Entity Designer). Specifically, the EntityDesignerExtendedPropertyAttribute is used to annotate classes that implement the IEntityDesignerExtendedProperty interface. The EntityDesignerExtendedPropertyAttribute constructor accepts a parameter of type EntityDesignerSelection that specifies which objects, when selected in the Entity Data Model Designer or the Model Browser, cause the IEntityDesignerExtendedProperty.CreateProperty method of the annotated class to be called.

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.

继承层次结构

System.Object
   System.Attribute
    Microsoft.Data.Entity.Design.Extensibility.EntityDesignerExtendedPropertyAttribute

线程安全

此类型的任何公共静态（在 Visual Basic 中为 共享）成员都是线程安全的。不保证所有实例成员都是线程安全的。

平台

开发平台

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

目标平台

另请参见

参考

EntityDesignerExtendedPropertyAttribute 成员
Microsoft.Data.Entity.Design.Extensibility 命名空间

其他资源

Visual Studio Extensibility Developer Center
Developing Visual Studio Extensions