public JsonResult IsChannelNameAvailable(string name, int id)
 {
     using (RentItServiceClient proxy = new RentItServiceClient())
     {
         if (proxy.IsChannelNameAvailable(id, name))
         {
             return Json(true, JsonRequestBehavior.AllowGet);
         }
         return Json("The channel name is already in use.", JsonRequestBehavior.AllowGet);
     }
 }