how I can show the sum of in a datagridview column?

Question

I need to show the sum of the count column from this datagridview, but I don\'t know how I can get to the data in the datagridview.

When I

Answer 1

Use LINQ if you can.

  label1.Text =  dataGridView1.Rows.Cast()
                                   .AsEnumerable()
                                   .Sum(x => int.Parse(x.Cells[1].Value.ToString()))
                                   .ToString();