list1.Add(1);
// 1-1

for (int i = 0; i < list1.Count; i++)
{
if (list1.Count==1)
{
dataGridView1.Rows.Add();
dataGridView1.Rows[0].Cells[0].Value = rowsdgr;
dataGridView1.Rows[0].Cells[1].Value += list1[i].ToString();
}
else
{
dataGridView1.Rows.Add(); rowsdgr++;
for (int j = 0; i < list1.Count; i++)
{
dataGridView1.Rows[rowsdgr].Cells[0].Value = rowsdgr;
dataGridView1.Rows[rowsdgr].Cells[1].Value += list1[i].ToString();
}
break;
}


                    }