ServiceHostBase.OnClose Method (TimeSpan)
Closes down the hosted service, including their channel dispatchers and associated instance contexts and listeners.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Callingdoes the following:
Waits for all InstanceContext objects to close down, which happens when their associated channels finish sending all pending messages.
Closes the ChannelDispatcher objects associated with the host.
Available since 3.0