Type.GetTypeHandle(Object) Méthode

Référence

Définition

Espace de noms:: System

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Type.cs

Source:: Type.cs

Source:: Type.cs

Important

Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.

Obtient le handle pour le Type d'un objet spécifié.

public:
 static RuntimeTypeHandle GetTypeHandle(System::Object ^ o);

public static RuntimeTypeHandle GetTypeHandle (object o);

static member GetTypeHandle : obj -> RuntimeTypeHandle

Public Shared Function GetTypeHandle (o As Object) As RuntimeTypeHandle

Paramètres

o: Object

Objet dont il faut obtenir le handle de type.

Retours

RuntimeTypeHandle

Handle pour le Type de l'objet Object spécifié.

Exceptions

ArgumentNullException

o a la valeur null.

Exemples

L’exemple suivant définit la classe MyClass1, obtient une instance de celle-ci et récupère le handle d’exécution de l’objet .

using namespace System;
using namespace System::Reflection;

public ref class MyClass1
{
private:
    int x;

public:
    int MyMethod()
    {
        return x;
    }
};

int main()
{
    MyClass1^ myClass1 = gcnew MyClass1;
   
    // Get the RuntimeTypeHandle from an object.
    RuntimeTypeHandle myRTHFromObject = Type::GetTypeHandle( myClass1 );
   
    // Get the RuntimeTypeHandle from a type.
    RuntimeTypeHandle myRTHFromType = MyClass1::typeid->TypeHandle;

    Console::WriteLine( "\nmyRTHFromObject.Value:  {0}", myRTHFromObject.Value );
    Console::WriteLine( "myRTHFromObject.GetType():  {0}", myRTHFromObject.GetType() );
    Console::WriteLine( "Get the type back from the handle..." );
    Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromObject):  {0}", 
        Type::GetTypeFromHandle(myRTHFromObject) );

    Console::WriteLine( "\nmyRTHFromObject.Equals(myRTHFromType):  {0}", 
        myRTHFromObject.Equals(myRTHFromType) );

    Console::WriteLine( "\nmyRTHFromType.Value:  {0}", myRTHFromType.Value );
    Console::WriteLine( "myRTHFromType.GetType():  {0}", myRTHFromType.GetType() );
    Console::WriteLine( "Get the type back from the handle..." );
    Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromType):  {0}", 
        Type::GetTypeFromHandle(myRTHFromType) );
}

/* This code example produces output similar to the following:

myRTHFromObject.Value:  3295832
myRTHFromObject.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type::GetTypeFromHandle(myRTHFromObject):  MyClass1

myRTHFromObject.Equals(myRTHFromType):  True

myRTHFromType.Value:  3295832
myRTHFromType.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type::GetTypeFromHandle(myRTHFromType):  MyClass1
 */

using System;
using System.Reflection;

public class MyClass1
{
    private int x=0;
    public int MyMethod()
    {
        return x;
    }
}

public class MyClass2
{
    public static void Main()
    {
        MyClass1 myClass1 = new MyClass1();

        // Get the RuntimeTypeHandle from an object.
        RuntimeTypeHandle myRTHFromObject = Type.GetTypeHandle(myClass1);
        // Get the RuntimeTypeHandle from a type.
        RuntimeTypeHandle myRTHFromType = typeof(MyClass1).TypeHandle;

        Console.WriteLine("\nmyRTHFromObject.Value:  {0}", myRTHFromObject.Value);
        Console.WriteLine("myRTHFromObject.GetType():  {0}", myRTHFromObject.GetType());
        Console.WriteLine("Get the type back from the handle...");
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromObject):  {0}",
            Type.GetTypeFromHandle(myRTHFromObject));

        Console.WriteLine("\nmyRTHFromObject.Equals(myRTHFromType):  {0}",
            myRTHFromObject.Equals(myRTHFromType));

        Console.WriteLine("\nmyRTHFromType.Value:  {0}", myRTHFromType.Value);
        Console.WriteLine("myRTHFromType.GetType():  {0}", myRTHFromType.GetType());
        Console.WriteLine("Get the type back from the handle...");
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromType):  {0}",
            Type.GetTypeFromHandle(myRTHFromType));
    }
}

/* This code example produces output similar to the following:

myRTHFromObject.Value:  799464
myRTHFromObject.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type.GetTypeFromHandle(myRTHFromObject):  MyClass1

myRTHFromObject.Equals(myRTHFromType):  True

myRTHFromType.Value:  799464
myRTHFromType.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type.GetTypeFromHandle(myRTHFromType):  MyClass1
 */

open System

type MyClass1() =
    let x = 0
    member _.MyMethod() =
        x

let myClass1 = MyClass1()

// Get the RuntimeTypeHandle from an object.
let myRTHFromObject = Type.GetTypeHandle myClass1
// Get the RuntimeTypeHandle from a type.
let myRTHFromType = typeof<MyClass1>.TypeHandle

printfn $"\nmyRTHFromObject.Value:  {myRTHFromObject.Value}"
printfn $"myRTHFromObject.GetType():  {myRTHFromObject.GetType()}"
printfn "Get the type back from the handle..."
printfn $"Type.GetTypeFromHandle(myRTHFromObject):  {Type.GetTypeFromHandle myRTHFromObject}"

printfn $"\nmyRTHFromObject.Equals(myRTHFromType):  {myRTHFromObject.Equals myRTHFromType}"

printfn $"\nmyRTHFromType.Value:  {myRTHFromType.Value}"
printfn $"myRTHFromType.GetType():  {myRTHFromType.GetType()}"
printfn "Get the type back from the handle..."
printfn $"Type.GetTypeFromHandle(myRTHFromType):  {Type.GetTypeFromHandle myRTHFromType}"

// This code example produces output similar to the following:
//     myRTHFromObject.Value:  799464
//     myRTHFromObject.GetType():  System.RuntimeTypeHandle
//     Get the type back from the handle...
//     Type.GetTypeFromHandle(myRTHFromObject):  MyClass1
//    
//     myRTHFromObject.Equals(myRTHFromType):  True
//    
//     myRTHFromType.Value:  799464
//     myRTHFromType.GetType():  System.RuntimeTypeHandle
//     Get the type back from the handle...
//     Type.GetTypeFromHandle(myRTHFromType):  MyClass1

Imports System.Reflection

Public Class MyClass1
    Private x As Integer = 0
   
    Public Function MyMethod() As Integer
        Return x
    End Function 'MyMethod
End Class 

Public Class MyClass2
   
    Public Shared Sub Main()
        Dim myClass1 As New MyClass1()
      
        ' Get the RuntimeTypeHandle from an object.
        Dim myRTHFromObject As RuntimeTypeHandle = Type.GetTypeHandle(myClass1)
        ' Get the RuntimeTypeHandle from a type.
        Dim myRTHFromType As RuntimeTypeHandle = GetType(MyClass1).TypeHandle
      
        Console.WriteLine(vbLf & "myRTHFromObject.Value:  {0}", _
            myRTHFromObject.Value)
        Console.WriteLine("myRTHFromObject.GetType():  {0}", _
            myRTHFromObject.GetType())
        Console.WriteLine("Get the type back from the handle...")
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromObject):  {0}", _
            Type.GetTypeFromHandle(myRTHFromObject))

        Console.WriteLine(vbLf & "myRTHFromObject.Equals(myRTHFromType):  {0}", _
            myRTHFromObject.Equals(myRTHFromType))

        Console.WriteLine(vbLf & "myRTHFromType.Value:  {0}", _
            myRTHFromType.Value)
        Console.WriteLine("myRTHFromType.GetType():  {0}", _
            myRTHFromType.GetType())
        Console.WriteLine("Get the type back from the handle...")
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromType):  {0}", _
            Type.GetTypeFromHandle(myRTHFromType))
    End Sub 
End Class 

' This code example produces output similar to the following:
'
'myRTHFromObject.Value:  7549720
'myRTHFromObject.GetType():  System.RuntimeTypeHandle
'Get the type back from the handle...
'Type.GetTypeFromHandle(myRTHFromObject):  MyClass1
'
'myRTHFromObject.Equals(myRTHFromType):  True
'
'myRTHFromType.Value:  7549720
'myRTHFromType.GetType():  System.RuntimeTypeHandle
'Get the type back from the handle...
'Type.GetTypeFromHandle(myRTHFromType):  MyClass1

Remarques

Les handles sont valides uniquement dans le domaine d’application dans lequel ils ont été obtenus.

S’applique à

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