private void cbbKhoa_SelectedIndexChanged(object sender, EventArgs e)
{
List <string> t = bll.GetListPhongKhoa_BLL(bll.GetMaKhoa_BLL(cbbKhoa.SelectedItem.ToString()));
int k = t.Count;
t.RemoveAt(k - 1);
cbbPhong.DataSource = t;
cbbMTS.DataSource = bll.GetTenTSChiaPhong_DAL(bll.GetMaKhoa_BLL(cbbKhoa.SelectedItem.ToString()));
}
private void cbbKhoa_SelectedIndexChanged(object sender, EventArgs e)
{
if (cbbKhoa.SelectedItem.ToString() != "Tat ca")
{
cbbPhong.DataSource = bll.GetListPhongKhoa_BLL(bll.GetMaKhoa_BLL(cbbKhoa.SelectedItem.ToString()));
}
else
{
cbbPhong.SelectedIndex = cbbPhong.FindStringExact("Tat ca");
}
}
