public static int DeletePhong(string _maPhong)
 {
     try
     {
         PhongMod phongMod = new PhongMod(_maPhong);
         return(phongMod.DeletePhong());
     }
     catch { return(0); }
 }
 public static int UpdatePhong(string _maPhong, string _tenPhong, string _maLoaiPhong, bool _hide)
 {
     try
     {
         PhongMod phongMod = new PhongMod(_maPhong, _tenPhong, _maLoaiPhong, _hide);
         return(phongMod.UpdatePhong());
     }
     catch
     {
         return(0);
     }
 }