private void grvDSLop_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
{
if (e.FocusedRowHandle >= 0)
{
dtData = oBSV_SinhVien.GetByLop_Mon(int.Parse(grvDSLop.GetDataRow(e.FocusedRowHandle)["DM_LopID"].ToString()), IDDM_MonHoc, Program.IDNamHoc, Program.HocKy, IDKQHT_HoiDongMon);
if (dtData != null && dtData.Rows.Count == 0)
{
dtData = oBKQHT_HoiDongMon_SinhVien.GetByThiTotNghiep(int.Parse(grvDSLop.GetDataRow(e.FocusedRowHandle)["DM_LopID"].ToString()), IDDM_MonHoc, Program.IDNamHoc, Program.HocKy, IDKQHT_HoiDongMon);
}
grdSinhVien.DataSource = dtData;
dtData.AcceptChanges();
if (dtData.Rows.Count > 0)
{
btnThem.Enabled = true;
}
else
{
btnThem.Enabled = false;
}
}
}
