LogicalMethodInfo.Invoke(Object, Object[]) Méthode

Définition

Espace de noms:

System.Web.Services.Protocols

Assembly:

System.Web.Services.dll

Appelle la méthode représentée par LogicalMethodInfo en cours.

public:
 cli::array <System::Object ^> ^ Invoke(System::Object ^ target, cli::array <System::Object ^> ^ values);

public object[] Invoke (object target, object[] values);

member this.Invoke : obj * obj[] -> obj[]

Public Function Invoke (target As Object, values As Object()) As Object()

Paramètres

target

Object

Instance de Object sur laquelle appeler la méthode.

values

Object[]

Liste d'arguments de la méthode appelée. Il s'agit d'un tableau d'objets ayant les mêmes nombre, ordre et type que les paramètres de la méthode. Si la méthode ne requiert aucun paramètre, le paramètre values devrait être null.

Retours

Object[]

Tableau de type Object représentant la valeur de retour et les paramètres out de la méthode appelée.

Exceptions

TargetException

Le paramètre target a la valeur null.

ArgumentException

Le nombre, le type et l'ordre des paramètres de values ne correspondent pas à la signature de la méthode appelée.

MemberAccessException

L'appelant n'a pas l'autorisation d'appeler la méthode.

TargetInvocationException

La méthode appelée lève une exception.

Exemples

#using <System.Web.Services.dll>

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

public ref class MyService
{
public:
   int Add( int xValue, int yValue )
   {
      return (xValue + yValue);
   }

};

int main()
{
   Type^ myType = MyService::typeid;
   MethodInfo^ myMethodInfo = myType->GetMethod( "Add" );
   LogicalMethodInfo^ myLogicalMethodInfo = gcnew LogicalMethodInfo( myMethodInfo );
   Console::WriteLine( "\nPrinting properties of method : {0}\n", myLogicalMethodInfo );
   Console::WriteLine( "\nThe declaring type of the method {0} is :\n", myLogicalMethodInfo->Name );
   Console::WriteLine( "\t {0}", myLogicalMethodInfo->DeclaringType );
   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( "\t {0}", String::Concat( myParameters[ i ]->Name, " : ", myParameters[ i ]->ParameterType ) );
   }
   Console::WriteLine( "\nThe return type of the method {0} is :\n", myLogicalMethodInfo->Name );
   Console::WriteLine( "\t {0}", myLogicalMethodInfo->ReturnType );
   MyService^ service = gcnew MyService;
   Console::WriteLine( "\nInvoking the method {0}\n", myLogicalMethodInfo->Name );
   array<Object^>^values = gcnew array<Object^>(2);
   values[ 0 ] = 10;
   values[ 1 ] = 10;
   Console::WriteLine( "\tThe sum of 10 and 10 is : {0}", myLogicalMethodInfo->Invoke( service, values ) );
}

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

public class MyService
{
   public int Add(int xValue, int yValue)
   {
      return (xValue + yValue);
   }
}

class LogicalMethodInfo_Constructor
{
   [PermissionSetAttribute(SecurityAction.Demand, Name="FullTrust")]
   static void Run()
   {
      Type myType = typeof(MyService);
      MethodInfo myMethodInfo = myType.GetMethod("Add");
      LogicalMethodInfo myLogicalMethodInfo =
                  new LogicalMethodInfo(myMethodInfo);

      Console.WriteLine("\nPrinting properties of method : {0}\n",
                              myLogicalMethodInfo.ToString());

      Console.WriteLine("\nThe declaring type of the method {0} is :\n",
                              myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.DeclaringType);

      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 return type of the method {0} is :\n",
                              myLogicalMethodInfo.Name);
      Console.WriteLine("\t" + myLogicalMethodInfo.ReturnType);

      MyService service = new MyService();
      Console.WriteLine("\nInvoking the method {0}\n",
                              myLogicalMethodInfo.Name);
      Console.WriteLine("\tThe sum of 10 and 10 is : {0}",
                              myLogicalMethodInfo.Invoke(service,
                                                   new object[] {10, 10}));
   }

   static void Main()
   {
      Run();
   }
}

Imports System.Reflection
Imports System.Security.Permissions
Imports System.Web.Services.Protocols

Public Class MyService
   
   Public Function Add(xValue As Integer, yValue As Integer) As Integer
      Return xValue + yValue
   End Function 'Add
End Class

Class LogicalMethodInfo_Constructor

<PermissionSetAttribute(SecurityAction.Demand, Name := "FullTrust")>  _
   Shared Sub Run()
      Dim myType As Type = GetType(MyService)
      Dim myMethodInfo As MethodInfo = myType.GetMethod("Add")
      Dim myLogicalMethodInfo As New LogicalMethodInfo(myMethodInfo)
      
      Console.WriteLine(ControlChars.NewLine + "Printing properties of method : {0}" + _
                              ControlChars.NewLine, myLogicalMethodInfo.ToString())
      
      Console.WriteLine(ControlChars.NewLine + "The declaring type of the method {0} is :" + _
                                    ControlChars.NewLine, myLogicalMethodInfo.Name)
      Console.WriteLine(ControlChars.Tab + myLogicalMethodInfo.DeclaringType.ToString())
      
      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 return type of the method {0} is :" + _
                                             ControlChars.NewLine, myLogicalMethodInfo.Name)
      Console.WriteLine(ControlChars.Tab + myLogicalMethodInfo.ReturnType.ToString())
      
      Dim service As New MyService()
      Console.WriteLine(ControlChars.NewLine + "Invoking the method {0}" + _
                                                ControlChars.NewLine, myLogicalMethodInfo.Name)
      Console.WriteLine(ControlChars.Tab + "The sum of 10 and 10 is : {0}", _
                                    myLogicalMethodInfo.Invoke(service, New Object() {10, 10}))

   End Sub
   
   Shared Sub Main()
      Run()
   End Sub
End Class