DesignerEventArgs 类

提供有关 DesignerCreated 和 DesignerDisposed 事件的数据。

**命名空间:**System.ComponentModel.Design
**程序集:**System（在 system.dll 中）

语法

声明
Public Class DesignerEventArgs
    Inherits EventArgs
用法
Dim instance As DesignerEventArgs

public class DesignerEventArgs : EventArgs

public ref class DesignerEventArgs : public EventArgs

public class DesignerEventArgs extends EventArgs

public class DesignerEventArgs extends EventArgs

备注

当创建或释放文档时，将引发 DesignerCreated 和 DesignerDisposed 事件。

提示

应用于此类的 HostProtectionAttribute 属性 (Attribute) 具有以下 Resources 属性 (Property) 值：SharedState。HostProtectionAttribute 不影响桌面应用程序（这些应用程序通常通过双击图标、键入命令或在浏览器中输入 URL 来启动）。有关更多信息，请参见 HostProtectionAttribute 类或 SQL Server 编程和宿主保护属性。

示例

下面的示例说明如何创建 DesignerEventArgs。

' This example method creates a DesignerEventArgs using the specified designer host.
' Typically, this type of event args is created by the IDesignerEventService.  
Public Function CreateComponentEventArgs(ByVal host As IDesignerHost) As DesignerEventArgs

    Dim args As New DesignerEventArgs(host)

    ' The designer host of the created or disposed document:  args.Component

    Return args

End Function

// This example method creates a DesignerEventArgs using the specified designer host.
// Typically, this type of event args is created by the IDesignerEventService.  
public DesignerEventArgs CreateComponentEventArgs(IDesignerHost host)
{
    DesignerEventArgs args = new DesignerEventArgs(host);

    // The designer host of the created or disposed document:  args.Component

    return args;
}

// This example method creates a DesignerEventArgs using the specified designer host.
// Typically, this type of event args is created by the IDesignerEventService.
DesignerEventArgs^ CreateComponentEventArgs( IDesignerHost^ host )
{
   DesignerEventArgs^ args = gcnew DesignerEventArgs( host );

   // The designer host of the created or disposed document:  args.Component

   return args;
}

// This example method creates a DesignerEventArgs using the specified 
// designer host.
// Typically, this type of event args is created by the 
// IDesignerEventService.  
public DesignerEventArgs CreateComponentEventArgs(IDesignerHost host)
{
    DesignerEventArgs args = new DesignerEventArgs(host);
    // The designer host of the created or disposed document:  
    // args.Component
    return args;
} //CreateComponentEventArgs

继承层次结构

System.Object
   System.EventArgs
    System.ComponentModel.Design.DesignerEventArgs

线程安全

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

平台

Windows 98、Windows 2000 SP4、Windows Millennium Edition、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

请参见

参考

DesignerEventArgs 成员
System.ComponentModel.Design 命名空间
IDesignerEventService
DesignerEventHandler