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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: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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