Question

我想在Gridview中找到总价格但是当我这样做时，我必须跟踪这件作品。例如，如果我买了4双鞋，而且鞋子的价格是20，我应该20 * 4总价。我怎么能在GridView中做到这一点

decimal price = 0;
int piece = 0;
decimal totalPrice = 0;
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
        price += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "price"));
        piece += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "piece"));
        totalPrice = price * piece;
    }
    else if(e.Row.RowType == DataControlRowType.Footer)
    {
        e.Row.Cells[1].Text = "Total Price:";
        e.Row.Cells[2].Text = totalPrice.ToString("c");
        e.Row.Cells[1].HorizontalAlign = e.Row.Cells[2].HorizontalAlign = HorizontalAlign.Right;
        e.Row.Font.Bold = true;
    }
}

Answer 1

您可以简单地执行此操作以显示页脚中的总数。为了简单起见，我省略了异常处理。

decimal price = 0;
int piece = 0;
decimal totalPrice = 0;
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
        // This will multiply the price and piece and add it to final total.
        totalPrice += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "price")) * Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "piece"));
    }
    else if(e.Row.RowType == DataControlRowType.Footer)
    {
        e.Row.Cells[1].Text = "Total Price:";
        e.Row.Cells[2].Text = totalPrice.ToString("c");
        e.Row.Cells[1].HorizontalAlign = e.Row.Cells[2].HorizontalAlign = HorizontalAlign.Right;
        e.Row.Font.Bold = true;
    }
}

如何使用ASP.NET中的GridView计算总价格

1 个答案: