LogicalMethodInfo.IsVoid 屬性

定義

命名空間:

System.Web.Services.Protocols

組件:

System.Web.Services.dll

取得值，指出 LogicalMethodInfo 的執行個體所表示方法的傳回型別 (Return Type) 是否為 void。

public:
 property bool IsVoid { bool get(); };

public bool IsVoid { get; }

member this.IsVoid : bool

Public ReadOnly Property IsVoid As Boolean

屬性值

Boolean

如果傳回型別為虛值 (Void)，則為 true，否則為 false。

範例

#using <System.Web.Services.dll>

using namespace System;
using namespace System::Runtime::InteropServices;
using namespace System::Reflection;
using namespace System::Web::Services::Protocols;

public ref class MyService
{
public:
   void MyMethod( int inParameter, [Out]interior_ptr<int> outParameter )
   {
       *outParameter = inParameter;
   }
};

int main()
{
   Type^ myType = MyService::typeid;
   MethodInfo^ myMethodInfo = myType->GetMethod( "MyMethod" );
   array<MethodInfo^>^temparray = {myMethodInfo};
   LogicalMethodInfo^ myLogicalMethodInfo = (LogicalMethodInfo::Create( temparray ))[ 0 ];
   Console::WriteLine( "\nPrinting parameters for the method : {0}", myLogicalMethodInfo->Name );
   Console::WriteLine( "\nThe parameters of the method {0} are :\n", myLogicalMethodInfo->Name );
   array<ParameterInfo^>^myParameters = myLogicalMethodInfo->Parameters;
   for ( int i = 0; i < myParameters->Length; i++ )
   {
      Console::WriteLine( String::Concat( "\t ", myParameters[ i ]->Name, " : ", myParameters[ i ]->ParameterType ) );

   }
   Console::WriteLine( "\nThe in parameters of the method {0} are :\n", myLogicalMethodInfo->Name );
   myParameters = myLogicalMethodInfo->InParameters;
   for ( int i = 0; i < myParameters->Length; i++ )
   {
      Console::WriteLine( String::Concat( "\t ", myParameters[ i ]->Name, " : ", myParameters[ i ]->ParameterType ) );

   }
   Console::WriteLine( "\nThe out parameters of the method {0} are :\n", myLogicalMethodInfo->Name );
   myParameters = myLogicalMethodInfo->OutParameters;
   for ( int i = 0; i < myParameters->Length; i++ )
   {
      Console::WriteLine( String::Concat( "\t ", myParameters[ i ]->Name, " : ", myParameters[ i ]->ParameterType ) );

   }
   if ( myLogicalMethodInfo->IsVoid )
      Console::WriteLine( "\nThe return type is void" );
   else
      Console::WriteLine( "\nThe return type is {0}", myLogicalMethodInfo->ReturnType );
}

using System;
using System.Reflection;
using System.Web.Services.Protocols;

public class MyService
{
   public void MyMethod(int inParameter, out int outParameter)
   {
      outParameter = inParameter;
   }
}

public class LogicalMethodInfo_Create
{
   public static void Main()
   {
      Type myType = typeof(MyService);
      MethodInfo myMethodInfo = myType.GetMethod("MyMethod");
      LogicalMethodInfo myLogicalMethodInfo =
         (LogicalMethodInfo.Create(new MethodInfo[] {myMethodInfo}))[0];

      Console.WriteLine("\nPrinting parameters for the method : {0}",
                           myLogicalMethodInfo.Name);

      Console.WriteLine("\nThe parameters of the method {0} are :\n",
         myLogicalMethodInfo.Name);
      ParameterInfo[] myParameters = myLogicalMethodInfo.Parameters;
      for(int i = 0; i < myParameters.Length; i++)
      {
         Console.WriteLine("\t" + myParameters[i].Name +
            " : " + myParameters[i].ParameterType);
      }

      Console.WriteLine("\nThe in parameters of the method {0} are :\n",
         myLogicalMethodInfo.Name);
      myParameters = myLogicalMethodInfo.InParameters;
      for(int i = 0; i < myParameters.Length; i++)
      {
         Console.WriteLine("\t" + myParameters[i].Name +
            " : " + myParameters[i].ParameterType);
      }

      Console.WriteLine("\nThe out parameters of the method {0} are :\n",
         myLogicalMethodInfo.Name);
      myParameters = myLogicalMethodInfo.OutParameters;
      for(int i = 0; i < myParameters.Length; i++)
      {
         Console.WriteLine("\t" + myParameters[i].Name +
            " : " + myParameters[i].ParameterType);
      }

      if(myLogicalMethodInfo.IsVoid)
         Console.WriteLine("\nThe return type is void");
      else
         Console.WriteLine("\nThe return type is {0}",
                                 myLogicalMethodInfo.ReturnType);
   }
}

Imports System.Reflection
Imports System.Web.Services.Protocols

Public Class MyService
   
   Public Sub MyMethod(inParameter As Integer, ByRef outParameter As Integer)
      outParameter = inParameter
   End Sub
End Class

Public Class LogicalMethodInfo_Create
   
   Public Shared Sub Main()
      Dim myType As Type = GetType(MyService)
      Dim myMethodInfo As MethodInfo = myType.GetMethod("MyMethod")
      Dim myLogicalMethodInfo As LogicalMethodInfo = _
                             LogicalMethodInfo.Create(New MethodInfo() {myMethodInfo})(0)
      
      Console.WriteLine _
        (ControlChars.Newline + "Printing parameters for the method : {0}", myLogicalMethodInfo.Name)
      
      Console.WriteLine _
        (ControlChars.Newline + "The parameters of the method {0} are :" + _
                                           ControlChars.Newline, myLogicalMethodInfo.Name)
      Dim myParameters As ParameterInfo() = myLogicalMethodInfo.Parameters
      Dim i As Integer
      For i = 0 To myParameters.Length - 1
         Console.WriteLine _
         (ControlChars.Tab + myParameters(i).Name + " : " + myParameters(i).ParameterType.toString())
      Next i
      
      Console.WriteLine _
          (ControlChars.Newline + "The in parameters of the method {0} are :" + _
                                               ControlChars.Newline, myLogicalMethodInfo.Name)
      myParameters = myLogicalMethodInfo.InParameters

      For i = 0 To myParameters.Length - 1
         Console.WriteLine(ControlChars.Tab + myParameters(i).Name + " : " + _
                                                   myParameters(i).ParameterType.toString())
      Next i
      
      Console.WriteLine(ControlChars.Newline + "The out parameters of the method {0} are :" + _
                                                    ControlChars.Newline, myLogicalMethodInfo.Name)
      myParameters = myLogicalMethodInfo.OutParameters

      For i = 0 To myParameters.Length - 1
         Console.WriteLine(ControlChars.Tab + myParameters(i).Name + " : " + _
                                                     myParameters(i).ParameterType.toString())
      Next i
      
      If myLogicalMethodInfo.IsVoid Then
         Console.WriteLine(ControlChars.Newline + "The return type is void")
      Else
         Console.WriteLine _
             (ControlChars.Newline + "The return type is {0}", myLogicalMethodInfo.ReturnType)
      End If
   End Sub
End Class