public int MusteriEkle(int UC, string Clientname)
 {
     if (!string.IsNullOrEmpty(Clientname) && UC != 0)
     {
         Entities.ClientTable nesne = new Entities.ClientTable()
         {
             UC         = UC,
             ClientName = Clientname
         };
         return(dll.MusteriEkle(nesne));
     }
     else
     {
         return(-1); // eksik parametre hatası
     }
 }