在Gridview中对行进行求和

Question

我想在gridview中总结两列，并在标签中显示总数。我在gridview中启用了分页。

使用此代码我将两列的总和相加，但总数仅适用于所选页面。

如何执行总计来汇总所有页面中所选列的所有行？

    decimal priceTotal = 0;
    int totalMinutes = 0;
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            priceTotal += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Total"));
            totalMinutes += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Duration"));
        }
        lblTotalPrice.Text = "Total Cost: $"+ priceTotal.ToString();
        lblTotalMinutes.Text = "Total duration: " + totalMinutes.ToString();
    }

Answer 1

decimal price = 0;
foreach (DataGridViewRow row in DataGridView.Rows)
{
     price += row.Cells["Total"]!=null ? Convert.ToDecimal(row.Cells["Total"].Value) : 0;
}

lblTotalPrice.Text = "Total Cost: $"+ price.ToString("n2");