C# 如何计算行数据绑定事件中的总计

我想把总计列的和作为一个总数。如何计算总计并在rowdatabound事件的标签中显示

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"   CssClass="gridview"  DataKeyNames="Id"  Width="633px" OnRowDataBound="GridView1_RowDataBound">


                    <Columns>
                        <asp:BoundField DataField="Id" HeaderText="Id" ReadOnly="True" SortExpression="Id" />
                        <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" />
                        <asp:BoundField DataField="Quantity" HeaderText="Quantity" SortExpression="Quantity" />
                        <asp:BoundField DataField="UnitPrice" HeaderText="Unit Price" SortExpression="UnitPrice" />
                        <asp:BoundField DataField="Total" HeaderText="Total" SortExpression="Total" />
                    </Columns>
                </asp:GridView>

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {

            int value = Convert.ToInt32(e.Row.Cells[2].Text);
            int value2 = Convert.ToInt32(e.Row.Cells[3].Text);
            int total = value * value2;
            e.Row.Cells[4].Text = Convert.ToString(total);


    int GrandTotal = +total;
    lblgrandTotal = GrandTotal.ToString();

        }
    }

---

您可以在现有的

GridView1_RowDataBound

事件中执行此操作，方法是将总计添加到每行的变量中，如下所示：-

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {

            int value = Convert.ToInt32(e.Row.Cells[2].Text);
            int value2 = Convert.ToInt32(e.Row.Cells[3].Text);
            int total = value * value2;
            e.Row.Cells[4].Text = Convert.ToString(total);


    int GrandTotal = +total;
    lblgrandTotal = GrandTotal.ToString();

        }
    }

 int grandTotal = 0;
 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            int value = Convert.ToInt32(e.Row.Cells[2].Text);
            int value2 = Convert.ToInt32(e.Row.Cells[3].Text);
            int total = value * value2;
            grandTotal += total;
            e.Row.Cells[4].Text = Convert.ToString(total);
            lblgrandTota.Text = grandTotal.ToString();
        }
    }

---

我已将

grandTotal

变量放置在事件处理程序方法之外，这样它就不会为每一行初始化。

grandTotal

所有

总计的内容是什么。我想把所有的总数加起来。我更新了请参见Take
int GrandTotal
受保护范围之外的内容。使其成为一个全局变量而不是局部变量。显示此变量的标签。grandTotal:System.Web.UI.WebControls.Label我想我能做到。@krishnamohan-我想grandTotal和你的grandTotal之间有点混淆。更正。
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {

            int value = Convert.ToInt32(e.Row.Cells[2].Text);
            int value2 = Convert.ToInt32(e.Row.Cells[3].Text);
            int total = value * value2;
            e.Row.Cells[4].Text = Convert.ToString(total);


    int GrandTotal = +total;
    lblgrandTotal = GrandTotal.ToString();

        }
    }