public static void DeleteHotSpot(String BssidToDelete)
 {
     HotSpot obj = new HotSpot();
     using (var context = new HotSpotsDBEntities())
     {
         EntityKey key = new EntityKey("HotSpotsDBEntities.HotSpot", "bssid", BssidToDelete);
         obj = (HotSpot)context.GetObjectByKey(key);
         if (obj != null)
         {
             context.DeleteObject(obj);
         }
         context.SaveChanges();
     }
 }
 public static bool AddHotSpot(HotSpot obj)
 {
     bool success = false;
     using (var context = new HotSpotsDBEntities())
     {
         EntityKey key = new EntityKey("HotSpotsDBEntities.HotSpot", "bssid", obj.bssid);
         if ((HotSpot)context.GetObjectByKey(key) == null)
         {
             context.AddToHotSpot(obj);
             context.SaveChanges();
             success = true;
         }
     }
     return success;
 }