GridView求百分比

Question

<asp:GridView ID="dataBox" CssClass="dataBox" HorizontalAlign="Center" AutoGenerateColumns="False" CellPadding="0" BorderWidth="0px" BorderStyle="None"  CellSpacing="1" GridLines="None" AllowPaging="True" PageSize="20"  runat="server" ShowHeader="false" >
            <Columns>
                <asp:TemplateField>
                    <HeaderTemplate><input id="sel" name="sel" title="全选" onClick="selAll('id')" type="checkbox" value="all" /></HeaderTemplate>
                    <ItemTemplate><input id="id" name="id" type="checkbox" value="<%#Eval("ID")%>" /></ItemTemplate>
                    <ItemStyle HorizontalAlign="Center" Width="20" />
                </asp:TemplateField>
                <asp:TemplateField HeaderText=" ">
                    <ItemTemplate>
                        <div><%#Eval("content")%></div>
                        <div><%#Eval("vote_num")%></div>
                        <div><asp:Image ID="Image1" runat="server" width= vote_num/总数(这里不会)  /></div>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Center" Width="70" />
                </asp:TemplateField>
            </Columns>
            <HeaderStyle CssClass="dataHeader" />
                <PagerSettings Visible="False" />
            <RowStyle CssClass="dataItem" />
            <PagerStyle CssClass="dataFoot" />
         </asp:GridView>content是名称
vote_num是数c#()protected void dataBo()
        {
            DataTable dt2 = SqlHelper.ExecuteGetDataTable("select top 1 * from T_vote where V_t_id=" + Request.QueryString["id"].ToString().Trim());
            DataTable dt = SqlHelper.ExecuteGetDataTable("select * from T_option where vote_id=" + dt2.Rows[0]["id"].ToString());
            dataBox.DataSource = dt;
            dataBox.DataBind();
            string 总数 = SqlHelper.ExecuteString("select sum(vote_num) from T_option where vote_id=" + dt2.Rows[0]["id"].ToString());
        }

Answer 1

<div><asp:Image ID="Image1" runat="server" width= vote_num/总数(这里不会) /></div>