//HÀM THÊM KHÁCH HÀNG MỚI
private void buttonThemMoi_Click(object sender, EventArgs e)
{
LuaChonTuyChinh = "ThemMoi";
formChinhSuaThongTinKhachHang f = new formChinhSuaThongTinKhachHang();
f.ShowDialog();
DSKH();
}
//HÀM SỬA THÔNG TIN KHÁCH HÀNG
private void dataGridViewDSKH_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
LuaChonTuyChinh = "CapNhat";
formChinhSuaThongTinKhachHang f = new formChinhSuaThongTinKhachHang();
f.ShowDialog();
DSKH();
}
