private SV getInforSVToAdd()
        {
            SV s = new SV();

            s.MSSV   = txtMSSV.Text;
            s.NameSV = txtName.Text;
            if (rdFemale.Checked)
            {
                s.Gender = false;
            }
            else
            {
                s.Gender = true;
            }
            s.NS     = dateTimePicker1.Value;
            s.ID_Lop = ((CBBItems)cbbLSH.SelectedItem).Value;
            return(s);
        }
        public void loadDataSV()
        {
            SV s = BLL_QLSV.Instance.getSVByMSSV(mssv);

            txtMSSV.Text = s.MSSV;
            txtName.Text = s.NameSV;
            if (s.Gender == true)
            {
                rdMale.Checked = true;
            }
            else
            {
                rdFemale.Checked = true;
            }
            dateTimePicker1.Value = s.NS;
            foreach (var i in cbbLSH.Items)
            {
                if (((CBBItems)i).Value == s.ID_Lop)
                {
                    cbbLSH.SelectedItem = i;
                    return;
                }
            }
        }