/// <summary>
/// unsubscribes the user to the Portal callback
/// </summary>
public void UnSubscribePortal()
{
try
{
IPortalChatback call = OperationContext.Current.GetCallbackChannel <IPortalChatback>();
if (portalCallbacks.Contains(call))
{
portalCallbacks.Remove(call);
}
}
catch
{
}
}
/// <summary>
/// subscribes the user to the Portal callback
/// </summary>
public void SubscribePortal()
{
IPortalChatback call = OperationContext.Current.GetCallbackChannel <IPortalChatback>();
portalCallbacks.Add(call);
}
