private void LoadLop()
{
string maCN = "";
if (cbbChuyenNganh.Items.Count > 0)
{
maCN = cbbChuyenNganh.SelectedValue.ToString().Trim();
}
LopDAO dao = new LopDAO();
var list = dao.GetByMaChuyenNganh(maCN).Select(t => new
{
MaLop = t.MaLop,
TenLop = t.TenLop
}).ToList();
dgvLop.DataSource = list;
if (list.Count > 0)
{
btnSelectLop.Enabled = true;
}
else
{
btnSelectLop.Enabled = false;
}
}