private void DonHang_Load(object sender, EventArgs e)
{
dgvKH.DataSource = db.Thongtindathang(email);
lbTen.DataBindings.Add("Text", dgvKH.DataSource, "TenKH");
lbSdt.DataBindings.Add("Text", dgvKH.DataSource, "SDT");
lbEmail.DataBindings.Add("Text", dgvKH.DataSource, "Email");
lbDiachi.DataBindings.Add("Text", dgvKH.DataSource, "DiaChi");
lbTongtien.Text = db.Tongtien(db.getmakh(email)).ToString();
DateTime dat = DateTime.Now;
lbNgaydat.Text = dat.ToString();
lbNgaygiao.Text = db.getngaygiao(dat).ToString();
dgvDonhang.DataSource = db.GioHangtable(db.getmakh(email));
}