//Add to MemariSystem Table
 public bool AddMemariSystem(memariSystem ms)
 {
     try
     {
         db.memariSystems.InsertOnSubmit(ms);
         db.SubmitChanges();
         return true;
     }
     catch (Exception error)
     {
         return false;
     }
 }
 //Edit MemariSystem Table
 public int EditMemariSystem(memariSystem ms)
 {
     try
     {
         var v = from i in db.memariSystems
                 where i.memariCode == ms.memariCode
                 select i;
         memariSystem newmemari = v.FirstOrDefault();
         if(newmemari != null)
         {
             newmemari = ms;
             db.SubmitChanges();
             return 1;
         }
         return 0;//not found
     }
     catch (Exception error)
     {
         return -1;
     }
 }
 partial void UpdatememariSystem(memariSystem instance);
 partial void DeletememariSystem(memariSystem instance);
 partial void InsertmemariSystem(memariSystem instance);