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ISponsor Interface

Indicates that the implementer wants to be a lifetime lease sponsor.

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

[ComVisibleAttribute(true)] 
public interface ISponsor
/** @attribute ComVisibleAttribute(true) */ 
public interface ISponsor
ComVisibleAttribute(true) 
public interface ISponsor
Not applicable.

An object must implement the ISponsor interface if it needs to request a lease renewal for a particular object. An object that implements the ISponsor interface can become a sponsor by registering itself with the lease manager. The ISponsor interface is used by the lifetime service to call back to the sponsor.

public class MyClientSponsor : MarshalByRefObject, ISponsor
{
   private DateTime lastRenewal;
   public MyClientSponsor()
   {
      lastRenewal = DateTime.Now;
   }

   [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.Infrastructure)]
   public TimeSpan Renewal(ILease lease)
   {
      Console.WriteLine("Request to renew the lease time.");
      Console.WriteLine("Time since last renewal: " + 
         (DateTime.Now - lastRenewal).ToString());

      lastRenewal = DateTime.Now;
      return TimeSpan.FromSeconds(20);
   }
}

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

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