GridView添加统计(合计)行

    decimal totalstock = 0;
    protected void GridView2_DataBound(object sender, GridViewRowEventArgs e)
    {
         

        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            totalstock += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "total"));

            //  totalstock += DataBinder.Eval(e.Row.DataItem, "total");

            //在这里就可以实现总和的计算了

        }
        else if (e.Row.RowType == DataControlRowType.Footer)
        {
            e.Row.Cells[2].Text = "合计：";
            e.Row.Cells[2].HorizontalAlign = HorizontalAlign.Right;
            e.Row.Cells[3].Text = totalstock.ToString();

        }
 
    }