gridview模板列中的删除按钮事件传值问题？

gridview中模板列删除按钮 点击删除 删除当前行数据
点击删除的时候需要传入删除方法一个ID（就是数据库中当前行的主键）

girdview不是绑定数据源形式 用的是动态指定绑定数据

如果在girdview加载数据的时候 将每行数据的主键ID赋值给删除按钮？（CommandArgument）

部分代码如下


后台代码

 protected void btnSearch_Click(object sender, EventArgs e)

    {

        GridBing();

    }



    private void GridBing()

    {

        List<Goods> list = new List<Goods>();

        list = GoodsBLL.getGoodsByOrder(this.txtName.Text, this.txtBegin.Text, this.txtEnd.Text);

        double total = 0;

        foreach (Goods item in list)

        {

            total += item.Price;

        }

        this.GridView1.DataSource = list;

        this.GridView1.DataBind();

        this.Label1.Visible = true;

        string msg = "";

        if (!string.IsNullOrEmpty(txtBegin.Text) && !string.IsNullOrEmpty(txtEnd.Text))

        {

            msg = "从  " + this.txtBegin.Text + "  至  " + this.txtEnd.Text;

        }

        msg += "  总计消费:  " + total.ToString() + "  元";

        this.Label1.Text = msg;

    }

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

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

        {

            e.Row.Attributes.Add("onmouseover", "currentColor=this.style.backgroundColor;this.style.backgroundColor='#E8E0E0'");

            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentColor");

            Button btn = (Button)e.Row.FindControl("btnDel");

            btn.Attributes.Add("onclick", "return confirm('你确定删除吗？')");

            int id = Convert.ToInt32(e.Row.Cells[4].Text);

            Users user = UserBLL.getUserById(id);

            e.Row.Cells[4].Text = user.Name;

            if (e.Row.Cells[5].Text.Length > 8)

            {

                e.Row.Cells[5].Text = e.Row.Cells[5].Text.Substring(0, 8) + "……";

            }

        }

    }

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        this.GridView1.PageIndex = e.NewPageIndex;

        GridBing();

    }



    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)

    {

        if (e.CommandName == "del")

        {

            int num = GoodsBLL.delById(Convert.ToInt32(e.CommandArgument));

            this.GridBing();

        }

    }

}

前台代码

<div id="showGv" style="text-align: center;">

            <asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None"

                Height="127px" Width="1024px" AutoGenerateColumns="False" AllowPaging="True"

                OnPageIndexChanging="GridView1_PageIndexChanging" 

                OnRowDataBound="GridView1_RowDataBound" 

                onrowcommand="GridView1_RowCommand" DataKeyNames="id">

                <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />

                <Columns>

                    <asp:BoundField DataField="name" HeaderText="商品名称" />

                    <asp:BoundField DataField="price" HeaderText="商品价格">

                        <HeaderStyle Width="100px" />

                    </asp:BoundField>

                    <asp:BoundField DataField="count" HeaderText="商品数量">

                        <HeaderStyle Width="100px" />

                    </asp:BoundField>

                    <asp:BoundField DataField="datatime" HeaderText="购买时间">

                    <headerstyle width="100px" />

                    </asp:BoundField>

                    <asp:BoundField DataField="userid" HeaderText="购买人">

                        <HeaderStyle Width="100px" />

                    </asp:BoundField>

                    <asp:BoundField DataField="remarks" HeaderText="商品描述" >

                        <ItemStyle HorizontalAlign="Left" />

                    </asp:BoundField>

                    <asp:TemplateField HeaderText="删除">

                        <ItemTemplate>

                            <asp:Button ID="btnDel" runat="server" CommandName="del" 

                                Text="  删  除  " />

                        </ItemTemplate>

                    </asp:TemplateField>

                </Columns>

                <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

                <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />

                <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />

                <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

                <EditRowStyle BackColor="#999999" />

                <AlternatingRowStyle BackColor="White" ForeColor="#284775" />

            </asp:GridView>