ClientSponsor Class

Provides a default implementation for a lifetime sponsor class.

Namespace: System.Runtime.Remoting.Lifetime
Assembly: mscorlib (in mscorlib.dll)

public class ClientSponsor : MarshalByRefObject, ISponsor
/** @attribute ComVisibleAttribute(true) */ 
public class ClientSponsor extends MarshalByRefObject implements ISponsor
public class ClientSponsor extends MarshalByRefObject implements ISponsor
Not applicable.

The current lifetime sponsor implementation can be used to sponsor objects by specifying the required renewal TimeSpan.


This class makes a link demand and an inheritance demand at the class level. A SecurityException is thrown when either the immediate caller or the derived class does not have infrastructure permission. For details about security demands, see Link Demands and Inheritance Demands.

The following example illustrates the ClientSponsor class to extend the life of a class-activated remote object.

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Runtime.Remoting.Lifetime;
namespace RemotingSamples

   class HelloClient
       static void Main()
         // Register a channel.
         TcpChannel myChannel = new TcpChannel ();

         // Get the remote object.
         HelloService myService = new HelloService();

         // Get a sponsor for renewal of time.
         ClientSponsor mySponsor = new ClientSponsor();

         // Register the service with sponsor.

         // Set renewaltime.
         mySponsor.RenewalTime = TimeSpan.FromMinutes(2);

         // Renew the lease.
         ILease myLease = (ILease)mySponsor.InitializeLifetimeService();
         TimeSpan myTime = mySponsor.Renewal(myLease);
         Console.WriteLine("Renewed time in minutes is " + myTime.Minutes.ToString());

         // Call the remote method.

         // Unregister the channel.



Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0