ProxyAttribute コンストラクタ

.NET Framework クラス ライブラリ リファレンス

ProxyAttribute コンストラクタ

ProxyAttribute クラスの新しいインスタンスを既定値で初期化します。

名前空間: System.Runtime.Remoting.Proxies
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Sub New

Visual Basic (使用法)

Dim instance As New ProxyAttribute

C#

public ProxyAttribute ()

C++

public:
ProxyAttribute ()

J#

public ProxyAttribute ()

JScript

public function ProxyAttribute ()

使用例

Visual Basic

<SecurityPermissionAttribute(SecurityAction.Demand, Flags := SecurityPermissionFlag.Infrastructure),
 _
AttributeUsage(AttributeTargets.Class)>  _
Public Class MyProxyAttribute
   Inherits ProxyAttribute

   Public Sub New()
   End Sub 'New

   ' Create an instance of ServicedComponentProxy
   Public Overrides Function
 CreateInstance(serverType As Type) As MarshalByRefObject
      Return MyBase.CreateInstance(serverType)
   End Function 'CreateInstance

   Public Overrides Function
 CreateProxy(objRef1 As ObjRef, serverType As
 Type, _
               serverObject As Object, serverContext
 As Context) As RealProxy
      Dim myCustomProxy As New
 MyProxy(serverType)
      If Not (serverContext Is
 Nothing) Then
         RealProxy.SetStubData(myCustomProxy, serverContext)
      End If
      If Not serverType.IsMarshalByRef And
 serverContext Is Nothing Then
         Throw New RemotingException("Bad
 Type for CreateProxy")
      End If
      Return myCustomProxy
   End Function 'CreateProxy
End Class 'MyProxyAttribute

<MyProxyAttribute()> _
Public Class CustomServer
   Inherits ContextBoundObject

   Public Sub New()
      Console.WriteLine("CustomServer Base Class constructor called")
   End Sub 'New

   Public Sub HelloMethod(str As
 String)
      Console.WriteLine("HelloMethod of Server is invoked with
 message : " + str)
   End Sub 'HelloMethod
End Class 'CustomServer

C#

[AttributeUsage(AttributeTargets.Class)]
[SecurityPermissionAttribute(SecurityAction.Demand, Flags=SecurityPermissionFlag.Infrastructure)]
public class MyProxyAttribute : ProxyAttribute
{
   public MyProxyAttribute()
   {
   }
   // Create an instance of ServicedComponentProxy
   public override MarshalByRefObject CreateInstance(Type serverType)
   {  
      return base.CreateInstance(serverType);
   }
   public override RealProxy CreateProxy(ObjRef objRef1,
      Type serverType,
      object serverObject,
      Context serverContext)
   {
      MyProxy myCustomProxy = new MyProxy(serverType);
      if(serverContext != null)
      {
         RealProxy.SetStubData(myCustomProxy,serverContext);
      }
      if((!serverType.IsMarshalByRef)&&(serverContext
 == null))
      {
         throw new RemotingException("Bad Type for
 CreateProxy");
      }
      return myCustomProxy;
   }
}
[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
[MyProxyAttribute]
public class CustomServer :ContextBoundObject
{
   public CustomServer()
   {
      Console.WriteLine("CustomServer Base Class constructor called");
   }
   public void HelloMethod(string
 str)
   {
      Console.WriteLine("HelloMethod of Server is invoked with message : "
 + str);
   }
}

C++

[AttributeUsageAttribute(AttributeTargets::Class)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::InheritanceDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
public ref class MyProxyAttribute: public
 ProxyAttribute
{
public:
   MyProxyAttribute(){}

   // Create an instance of ServicedComponentProxy
   virtual MarshalByRefObject^ CreateInstance( Type^ serverType ) override
   {
      return ProxyAttribute::CreateInstance( serverType );
   }

   virtual RealProxy^ CreateProxy( ObjRef^ objRef1, Type^ serverType, Object^ serverObject,
 Context^ serverContext ) override
   {
      MyProxy^ myCustomProxy = gcnew MyProxy( serverType );
      if ( serverContext != nullptr )
      {
         RealProxy::SetStubData( myCustomProxy, serverContext );
      }

      if ( ( !serverType->IsMarshalByRef) && (serverContext
 == nullptr) )
      {
         throw gcnew RemotingException( "Bad Type for CreateProxy"
 );
      }

      return myCustomProxy;
   }
};

[MyProxyAttribute]
ref class CustomServer: public ContextBoundObject
{
public:
   CustomServer()
   {
      Console::WriteLine( "CustomServer Base Class constructor called"
 );
   }

   void HelloMethod( String^ str )
   {
      Console::WriteLine( "HelloMethod of Server is invoked with message : {0}",
 str );
   }
};

プラットフォーム

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

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
ProxyAttribute クラス
ProxyAttribute メンバ
System.Runtime.Remoting.Proxies 名前空間