private void dataGridView2_CellEnter(object sender, DataGridViewCellEventArgs e)
{
if (e.RowIndex < e.ColumnIndex)
{
int indexorder = ell.Count * e.RowIndex + e.ColumnIndex - (e.RowIndex + 1) * (e.RowIndex + 2) / 2;
tled = (List <exerDetail>)detailed[indexorder];
dataGridView1.DataSource = tled;
textBox1.Text = EXtools.caltotalscore(null, tled, pp).ToString() + "(" + (e.RowIndex + 1) + @"/" + (e.ColumnIndex + 1) + ")";
}
}
