It show an error : there is no row at the position

Question

when the row is empty then its not move to another row and it show an error:there is no row at the position

public void loadAct()
{
string qryAct = "";
DateNow = DateTime.Now.ToString("yyyy-MM-dd");
DataTable dt2 = new DataTable();
if (txtDate.Text != "")
{
qryAct = "select Line, MAX(TotalPairs)Pairs from ProdHourlyRep where Date= '" + txtDate.Text + "' and Team='C' group by Line";
}
else
{
qryAct = "select Line, MAX(TotalPairs)Pairs from ProdHourlyRep where Date='" + DateNow + "' and Team='C' group by Line";
}
SqlDataAdapter objAdapter2 = new SqlDataAdapter(qryAct, strConn);
objAdapter2.Fill(dt2);
if (dt2.Rows.Count > 0)
{
lblActl1.Text = dt2.Rows[0][1].ToString();
lblActl2.Text = dt2.Rows[1][1].ToString();
lblActl3.Text = dt2.Rows[2][1].ToString();
//lblActl4.Text = dt2.Rows[3][1].ToString();
}
}