private void load()
{
int rowSelected = cardKhachHang.FocusedRowHandle;
txtMaKH.Text = cardKhachHang.GetRowCellValue(cardKhachHang.FocusedRowHandle, "MaKH").ToString();
txtTenKH.Text = cardKhachHang.GetRowCellValue(cardKhachHang.FocusedRowHandle, "TenKH").ToString();
txtGhiChu.Text = cardKhachHang.GetRowCellValue(cardKhachHang.FocusedRowHandle, "GhiChu").ToString();
txtDiaChi.Text = cardKhachHang.GetRowCellValue(cardKhachHang.FocusedRowHandle, "DiaChi").ToString();
txtPhone.Text = cardKhachHang.GetRowCellValue(cardKhachHang.FocusedRowHandle, "Phone").ToString();
if (balKhachHang.LayHoaDonDaMua(txtMaKH.Text).Tables[0].Rows.Count != 0)
{
this.gridControl2.DataSource = balKhachHang.LayHoaDonDaMua(txtMaKH.Text).Tables[0];
}
else
{
this.gridControl2.DataSource = null;
}
}
