public void CapNhapDiem(string makh, int diem)
{
QL_KHACHHANG updateKhachHang = qlkh.QL_KHACHHANGs.Where(t => t.MaKH == makh).FirstOrDefault();
if (updateKhachHang != null)
{
updateKhachHang.DiemSo = diem;
}
qlkh.SubmitChanges();
}
public void xoaKhachHang(string makh)
{
QL_KHACHHANG deleteKhachHang = qlkh.QL_KHACHHANGs.Where(t => t.MaKH == makh).FirstOrDefault();
if (deleteKhachHang != null)
{
qlkh.QL_KHACHHANGs.DeleteOnSubmit(deleteKhachHang);
}
qlkh.SubmitChanges();
}
public void themKhachHang(string makh, string hoten, string sodt, string cmnd)
{
QL_KHACHHANG insertkh = new QL_KHACHHANG();
insertkh.MaKH = makh;
insertkh.HoTen = hoten;
insertkh.SDT = sodt;
insertkh.CMND = cmnd;
insertkh.DiemSo = 0;
qlkh.QL_KHACHHANGs.InsertOnSubmit(insertkh);
qlkh.SubmitChanges();
}
public void suaKhachHang(string makh, string hoten, string sodt, string cmnd, int diem)
{
QL_KHACHHANG updateKhachHang = qlkh.QL_KHACHHANGs.Where(t => t.MaKH == makh).FirstOrDefault();
if (updateKhachHang != null)
{
updateKhachHang.HoTen = hoten;
updateKhachHang.SDT = sodt;
updateKhachHang.CMND = cmnd;
updateKhachHang.DiemSo = diem;
}
qlkh.SubmitChanges();
}
private void btnSeachKH_Click(object sender, EventArgs e)
{
if (txtKhachHang.Text == "KHCDK")
{
return;
}
if (txtKhachHang.Enabled == false)
{
checkDungDiem.Checked = false;
txtKhachHang.Text = "";
txtKhachHang.Enabled = true;
lbDiem.Text = "0";
checkDungDiem.Enabled = false;
return;
}
if (txtKhachHang.Text == string.Empty)
{
MessageBox.Show("Chưa nhập mã số khách hàng");
return;
}
else
{
string makh = txtKhachHang.Text;
QL_KHACHHANG kh = kh_bll.loadGridViewTimKiemPOSKhachHang(makh);
kh_hientai = kh;
if (kh == null)
{
MessageBox.Show("Khách Hàng này không tồn tại");
return;
}
txtKhachHang.Text = kh.HoTen;
txtKhachHang.Enabled = false;
if (kh.DiemSo == 0 || kh.DiemSo == null)
{
lbDiem.Text = "0";
checkDungDiem.Enabled = false;
return;
}
checkDungDiem.Enabled = true;
lbDiem.Text = (int)kh.DiemSo + "";
}
}
