Type.IsMarshalByRefImpl 方法

定義

命名空間:

System

組件:

System.Runtime.dll

組件:

netstandard.dll

組件:

mscorlib.dll

實作 IsMarshalByRef 屬性，判斷 Type 是否以傳址方式封送處理。

protected:
 virtual bool IsMarshalByRefImpl();

protected virtual bool IsMarshalByRefImpl ();

abstract member IsMarshalByRefImpl : unit -> bool
override this.IsMarshalByRefImpl : unit -> bool

Protected Overridable Function IsMarshalByRefImpl () As Boolean

傳回

Boolean

如果 true 是以傳址方式進行封送處理，則為 Type，否則為 false。

範例

下列範例會判斷指定的類型是否以傳址方式封送處理，並顯示結果。

using namespace System;
using namespace System::Reflection;
public ref class MyTypeDelegatorClass: public TypeDelegator
{
public:
   String^ myElementType;

private:
   Type^ myType;

public:
   MyTypeDelegatorClass( Type^ myType )
      : TypeDelegator( myType )
   {
      this->myType = myType;
   }

protected:

   // Override IsMarshalByRefImpl.
   virtual bool IsMarshalByRefImpl() override
   {
      // Determine whether the type is marshalled by reference.
      if ( myType->IsMarshalByRef )
      {
         myElementType = " marshalled by reference";
         return true;
      }

      return false;
   }
};

public ref class MyTypeDemoClass{};


// This class is used to demonstrate the IsMarshalByRefImpl method.
public ref class MyContextBoundClass: public ContextBoundObject
{
public:
   String^ myString;
};

int main()
{
   try
   {
      MyTypeDelegatorClass^ myType;
      Console::WriteLine( "Determine whether MyContextBoundClass is marshalled by reference." );
      
      // Determine whether MyContextBoundClass type is marshalled by reference.
      myType = gcnew MyTypeDelegatorClass( MyContextBoundClass::typeid );
      if ( myType->IsMarshalByRef )
      {
         Console::WriteLine( "{0} is marshalled by reference.", MyContextBoundClass::typeid );
      }
      else
      {
         Console::WriteLine( "{0} is not marshalled by reference.", MyContextBoundClass::typeid );
      }
      
      // Determine whether int type is marshalled by reference.
      myType = gcnew MyTypeDelegatorClass( int::typeid );
      Console::WriteLine( "\nDetermine whether int is marshalled by reference." );
      if ( myType->IsMarshalByRef )
      {
         Console::WriteLine( "{0} is marshalled by reference.", int::typeid );
      }
      else
      {
         Console::WriteLine( "{0} is not marshalled by reference.", int::typeid );
      }
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception: {0}", e->Message );
   }
}

using System;
using System.Reflection;
public class MyTypeDelegatorClass : TypeDelegator
{
    public string myElementType = null;
    private Type myType = null ;
    public MyTypeDelegatorClass(Type myType) : base(myType)
    {
        this.myType = myType;
    }
    // Override IsMarshalByRefImpl.
    protected override bool IsMarshalByRefImpl()
    {
        // Determine whether the type is marshalled by reference.
        if(myType.IsMarshalByRef)
        {
            myElementType = " marshalled by reference";
            return true;
        }
        return false;
    }
}
public class MyTypeDemoClass
{
    public static void Main()
    {
        try
        {
            MyTypeDelegatorClass myType;
            Console.WriteLine ("Determine whether MyContextBoundClass is marshalled by reference.");
            // Determine whether MyContextBoundClass type is marshalled by reference.
            myType = new MyTypeDelegatorClass(typeof(MyContextBoundClass));
            if( myType.IsMarshalByRef )
            {
                Console.WriteLine(typeof(MyContextBoundClass) + " is marshalled by reference.");
            }
            else
            {
                Console.WriteLine(typeof(MyContextBoundClass) + " is not marshalled by reference.");
            }

            // Determine whether int type is marshalled by reference.
            myType = new MyTypeDelegatorClass(typeof(int));
            Console.WriteLine ("\nDetermine whether int is marshalled by reference.");
            if( myType.IsMarshalByRef)
            {
                Console.WriteLine(typeof(int) + " is marshalled by reference.");
            }
            else
            {
                Console.WriteLine(typeof(int) + " is not marshalled by reference.");
            }
        }
        catch( Exception e )
        {
            Console.WriteLine("Exception: {0}", e.Message);
        }
    }
}
// This class is used to demonstrate the IsMarshalByRefImpl method.
public class MyContextBoundClass : ContextBoundObject
{
    public string myString = "This class is used to demonstrate members of the Type class.";
}

Imports System.Reflection

Public Class MyTypeDelegatorClass
    Inherits TypeDelegator
    Public myElementType As String = Nothing
    Private myType As Type = Nothing
    Public Sub New(ByVal myType As Type)
        MyBase.New(myType)
        Me.myType = myType
    End Sub

    ' Override IsMarshalByRefImpl.
    Protected Overrides Function IsMarshalByRefImpl() As Boolean
        ' Determine whether the type is marshalled by reference.
        If myType.IsMarshalByRef Then
            myElementType = " marshalled by reference"
            Return True
        End If
        Return False
    End Function 'IsMarshalByRefImpl
End Class

Public Class MyTypeDemoClass

    Public Shared Sub Main()
        Try
            Dim myType As MyTypeDelegatorClass
            Console.WriteLine("Determine whether MyContextBoundClass is marshalled by reference.")
            ' Determine whether MyContextBoundClass is marshalled by reference.
            myType = New MyTypeDelegatorClass(GetType(MyContextBoundClass))
            If myType.IsMarshalByRef Then
                Console.WriteLine(GetType(MyContextBoundClass).ToString() + " is marshalled by reference.")
            Else
                Console.WriteLine(GetType(MyContextBoundClass).ToString() + " is not marshalled by reference.")
            End If

            ' Determine whether int is marshalled by reference.
            myType = New MyTypeDelegatorClass(GetType(Integer))
            Console.WriteLine(ControlChars.NewLine + "Determine whether int is marshalled by reference.")
            If myType.IsMarshalByRef Then
                Console.WriteLine(GetType(Integer).ToString() + " is marshalled by reference.")
            Else
                Console.WriteLine(GetType(Integer).ToString() + " is not marshalled by reference.")
            End If
        Catch e As Exception
            Console.WriteLine("Exception: {0}", e.Message.ToString())
        End Try
    End Sub
End Class

' This class is used to demonstrate 'IsMarshalByRefImpl' method.
Public Class MyContextBoundClass
    Inherits ContextBoundObject
    Public myString As String = "This class is used to demonstrate members of the Type class."
End Class

備註

衍生類別可以覆寫這個方法。

另請參閱

• IsMarshalByRef