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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

The ISponsor type exposes the following members.

  NameDescription
Public methodRenewalRequests a sponsoring client to renew the lease for the specified object.
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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);
   }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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