public bool ThemMoiChuNhaTro(string hoten, string cmnd, string diachi, string sdt, string email, int gioitinh, string matkhau)
 {
     try
     {
         ChuNhaTro cnt = new ChuNhaTro();
         cnt.HoTen    = hoten;
         cnt.CMND     = cmnd;
         cnt.DiaChi   = diachi;
         cnt.SDT      = sdt;
         cnt.Email    = email;
         cnt.GioiTinh = gioitinh;
         cnt.MatKhau  = matkhau;
         QUANLYNHATRO1DataContext context = new QUANLYNHATRO1DataContext();
         context.ChuNhaTros.InsertOnSubmit(cnt);
         context.SubmitChanges();
         return(true);
     }
     catch { }
     return(false);
 }
 public bool ThemChuNhaTro(string hoten, string cmnd, string sdt, string diachi, string email)
 {
     try
     {
         ChuNhaTro cnt = new ChuNhaTro();
         cnt.HoTen  = hoten;
         cnt.CMND   = cmnd;
         cnt.SDT    = sdt;
         cnt.DiaChi = diachi;
         cnt.Email  = email;
         QUANLYNHATRO1DataContext context = new QUANLYNHATRO1DataContext();
         context.ChuNhaTros.InsertOnSubmit(cnt);
         context.SubmitChanges();
         return(true);
     }
     catch
     {
     }
     return(false);
 }
 public bool SuaThongTinChuNhaTro(int machunhatro, string hoten, string cmnd, string sdt, string diachi, string email)
 {
     try
     {
         QUANLYNHATRO1DataContext context = new QUANLYNHATRO1DataContext();
         ChuNhaTro cnt = context.ChuNhaTros.FirstOrDefault(x => x.MaCNT == machunhatro);
         if (cnt != null)
         {
             cnt.HoTen  = hoten;
             cnt.CMND   = cmnd;
             cnt.SDT    = sdt;
             cnt.DiaChi = diachi;
             cnt.Email  = email;
             context.SubmitChanges();
             return(true);
         }
         return(false);
     }
     catch
     {
     }
     return(false);
 }