public void HienThiComboBoxPhong(string id, ComboBox cmb)
{
DangKyPhongData dataP = new DangKyPhongData();
cmb.DataSource = dataP.LayThongTinMaDangKyPhong(id);
cmb.DisplayMember = "MaPhong";
cmb.ValueMember = "MaPhong";
}
public void HienThiDateNgayDangKy(string id, DateTimePicker time)
{
DangKyPhongData dataP = new DangKyPhongData();
ComboBox cmb = new ComboBox();
cmb.DataSource = dataP.LayThongTinMaDangKyPhong(id);
cmb.DisplayMember = "NgayDangKy";
cmb.ValueMember = "NgayDangKy";
time.Text = cmb.Text;
}