LogicalMethodInfo.AsyncResultParameter プロパティ

Begin 非同期メソッド呼び出しの戻り値を取得します。

Public ReadOnly Property AsyncResultParameter As ParameterInfo
[C#]
public ParameterInfo AsyncResultParameter {get;}
[C++]
public: __property ParameterInfo* get_AsyncResultParameter();
[JScript]
public function get AsyncResultParameter() : ParameterInfo;

プロパティ値

Begin 非同期メソッド呼び出しから返された IAsyncResult を表す ParameterInfo 。

解説

共通言語ランタイムにおける非同期のデザインパターンでは、 Begin メソッドを呼び出して非同期メソッド呼び出しを開始し、 End メソッドを呼び出して呼び出しを完了します。 Begin メソッドは通常、 IAsyncResult インターフェイスを実装しているオブジェクトをすぐに返し、このオブジェクトを後で End メソッドに渡して非同期メソッド呼び出しを完了します。 IAsyncResult インターフェイスを実装している戻されたオブジェクトは、このプロパティで表されます。

XML Web サービスの非同期呼び出しについては、「 XML Web サービスとの非同期通信」を参照してください。

使用例

 
Imports System
Imports System.Reflection
Imports System.Web.Services.Protocols
Imports Microsoft.VisualBasic

Public Class MyService
   Inherits SoapHttpClientProtocol
   
   Public Function BeginAdd _
       (xValue As Integer, yValue As Integer, callback As AsyncCallback, asyncState As Object) _
                                                                                    As IAsyncResult
      Return Me.BeginInvoke("Add", New Object() {xValue, yValue}, callback, asyncState)
   End Function 'BeginAdd
   
   Public Function EndAdd(asyncResult As System.IAsyncResult) As Integer
      Dim results As Object() = Me.EndInvoke(asyncResult)
      Return CInt(results(0))
   End Function 'EndAdd
End Class 'MyService

Public Class LogicalMethodInfo_Create
   
   Public Shared Sub Main()
      Dim myType As Type = GetType(MyService)
      Dim myBeginMethod As MethodInfo = myType.GetMethod("BeginAdd")
      Dim myEndMethod As MethodInfo = myType.GetMethod("EndAdd")
      Dim myLogicalMethodInfo As LogicalMethodInfo = _
          LogicalMethodInfo.Create(New MethodInfo() _
                          {myBeginMethod, myEndMethod}, LogicalMethodTypes.Async)(0)
      
      Console.WriteLine _
        (ControlChars.Newline + "The asynchronous callback parameter of method {0} is :" + _ 
                                             ControlChars.Newline, myLogicalMethodInfo.Name)
      Console.WriteLine _
        (ControlChars.Tab + myLogicalMethodInfo.AsyncCallbackParameter.Name + " : " + _
                    myLogicalMethodInfo.AsyncCallbackParameter.ParameterType.ToString())
      
      Console.WriteLine _
        (ControlChars.Newline + "The asynchronous state parameter of method {0} is :" + _
                                             ControlChars.Newline, myLogicalMethodInfo.Name)
      Console.WriteLine _
       (ControlChars.Tab + myLogicalMethodInfo.AsyncStateParameter.Name + " : " + _
                               myLogicalMethodInfo.AsyncStateParameter.ParameterType.ToString())
      
      Console.WriteLine _
       (ControlChars.Newline + "The asynchronous result parameter of method {0} is :" + _
                                                     ControlChars.Newline, myLogicalMethodInfo.Name)
      Console.WriteLine _
       (ControlChars.Tab + myLogicalMethodInfo.AsyncResultParameter.Name + " : " + _
                               myLogicalMethodInfo.AsyncResultParameter.ParameterType.ToString())
      
      Console.WriteLine _
        (ControlChars.Newline + "The begin method of the asynchronous method {0} is :" + _
                                             ControlChars.Newline, myLogicalMethodInfo.Name)
      Console.WriteLine(ControlChars.Tab + myLogicalMethodInfo.BeginMethodInfo.ToString())
      
      Console.WriteLine _
       (ControlChars.Newline + "The end method of the asynchronous method {0} is :" + _
                                                     ControlChars.Newline, myLogicalMethodInfo.Name)
      Console.WriteLine(ControlChars.Tab + myLogicalMethodInfo.EndMethodInfo.ToString())
      
      If myLogicalMethodInfo.IsAsync Then
         Console.WriteLine(ControlChars.Newline + "{0} is asynchronous", myLogicalMethodInfo.Name)
      Else
         Console.WriteLine(ControlChars.Newline + "{0} is synchronous", myLogicalMethodInfo.Name)
      End If 
   End Sub 'Main
End Class 'LogicalMethodInfo_Create

[C#] 
using System;
using System.Reflection;
using System.Web.Services.Protocols;

public class MyService : SoapHttpClientProtocol
{
   public IAsyncResult BeginAdd(int xValue, int yValue,
                                AsyncCallback callback,
                                object asyncState)
   {
      return this.BeginInvoke("Add", new object[] {xValue,yValue}, callback, asyncState);
   }

   public int EndAdd(System.IAsyncResult asyncResult) 
   {
      object[] results = this.EndInvoke(asyncResult);
      return ((int)(results[0]));
   } 
}

public class LogicalMethodInfo_Create
{
   public static void Main()
   {
      Type myType = typeof(MyService);
      MethodInfo myBeginMethod = myType.GetMethod("BeginAdd");
      MethodInfo myEndMethod = myType.GetMethod("EndAdd");
      LogicalMethodInfo myLogicalMethodInfo = 
         (LogicalMethodInfo.Create(new MethodInfo[] { myBeginMethod,
                                                      myEndMethod },
                                   LogicalMethodTypes.Async))[0];

      Console.WriteLine("\nThe asynchronous callback parameter of method {0} is :\n",
                           myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.AsyncCallbackParameter.Name +
                              " : " + myLogicalMethodInfo.AsyncCallbackParameter.ParameterType);

            Console.WriteLine("\nThe asynchronous state parameter of method {0} is :\n",
         myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.AsyncStateParameter.Name +
         " : " + myLogicalMethodInfo.AsyncStateParameter.ParameterType);

      Console.WriteLine("\nThe asynchronous result parameter of method {0} is :\n",
         myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.AsyncResultParameter.Name +
         " : " + myLogicalMethodInfo.AsyncResultParameter.ParameterType);

      Console.WriteLine("\nThe begin method of the asynchronous method {0} is :\n",
         myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.BeginMethodInfo);

      Console.WriteLine("\nThe end method of the asynchronous method {0} is :\n",
         myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.EndMethodInfo);

      if(myLogicalMethodInfo.IsAsync)
         Console.WriteLine("\n{0} is asynchronous", myLogicalMethodInfo.Name);
      else
         Console.WriteLine("\n{0} is synchronous", myLogicalMethodInfo.Name);

   }
}

[C++] 
#using <mscorlib.dll>
#using <System.dll>
#using <System.Web.dll>
#using <System.Web.Services.dll>
using namespace System;
using namespace System::Reflection;
using namespace System::Web::Services::Protocols;

public __gc class MyService : public SoapHttpClientProtocol {
public:
   IAsyncResult* BeginAdd(int xValue, int yValue,
      AsyncCallback* callback,
      Object* asyncState) {

         Object* temp0 [] = {__box(xValue), __box(yValue)};

         return this->BeginInvoke(S"Add", temp0, callback, asyncState);
      }

public:
   int EndAdd(System::IAsyncResult* asyncResult) {
      Object* results[] = this->EndInvoke(asyncResult);
      return *dynamic_cast<int __gc *>(results[0]);
   }
};

int main() {
   Type*  myType = __typeof(MyService);
   MethodInfo*  myBeginMethod = myType->GetMethod(S"BeginAdd");
   MethodInfo*  myEndMethod = myType->GetMethod(S"EndAdd");
   MethodInfo* temp0 [] = {myBeginMethod, myEndMethod};
   LogicalMethodInfo* myLogicalMethodInfo = 
      LogicalMethodInfo::Create(temp0, LogicalMethodTypes::Async)[0];

   Console::WriteLine(S"\nThe asynchronous callback parameter of method {0} is :\n",
      myLogicalMethodInfo->Name);
   Console::WriteLine(S"\t {0} : {1}", myLogicalMethodInfo->AsyncCallbackParameter->Name,
      myLogicalMethodInfo->AsyncCallbackParameter->ParameterType);

   Console::WriteLine(S"\nThe asynchronous state parameter of method {0} is :\n",
      myLogicalMethodInfo->Name);
   Console::WriteLine(S"\t {0} : {1}", myLogicalMethodInfo->AsyncStateParameter->Name,
      myLogicalMethodInfo->AsyncStateParameter->ParameterType);

   Console::WriteLine(S"\nThe asynchronous result parameter of method {0} is :\n",
      myLogicalMethodInfo->Name);
   Console::WriteLine(S"\t {0} : {1}", myLogicalMethodInfo->AsyncResultParameter->Name,
      myLogicalMethodInfo->AsyncResultParameter->ParameterType);

   Console::WriteLine(S"\nThe begin method of the asynchronous method {0} is :\n",
      myLogicalMethodInfo->Name);
   Console::WriteLine(S"\t {0}", myLogicalMethodInfo->BeginMethodInfo);

   Console::WriteLine(S"\nThe end method of the asynchronous method {0} is :\n",
      myLogicalMethodInfo->Name);
   Console::WriteLine(S"\t {0}", myLogicalMethodInfo->EndMethodInfo);

   if (myLogicalMethodInfo->IsAsync)
      Console::WriteLine(S"\n {0} is asynchronous", 
      myLogicalMethodInfo->Name);
   else
      Console::WriteLine(S"\n {0} is synchronous", 
      myLogicalMethodInfo->Name);
}

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必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ

参照

Last updated on 2008-03-28

次の方法で共有

LogicalMethodInfo.AsyncResultParameter プロパティ

プロパティ値

解説

使用例

必要条件

参照

その他のリソース