Datagridview footer row with total

The DGV doesn't support footer rows as such and it's awkward (when the user can add rows) to keep adding a new row at the bottom of the grid to show totals. Also the user may need to scroll the grid to see the totals.

If I were you I'd consider instead placing labels underneath the columns you want to total and then update the labels each time a value is changed in those columns or a row is added or removed. This also has the advantage that the totals will always be visible.

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

        double amount = 0;       

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            amount += Convert.ToDouble(e.Row.Cells[1].Text.Trim());

            GridView1.FooterRow.Cells[1].Text = amount.ToString();

        }

 }