DataGrid中用条形图显示统计结果的例子

后置代码中的计算方法
 public int FormatVoteCount(string VOTE_NUMBER, string VOTE_REMARK)
    {
        if (VOTE_NUMBER.Length <= 0 || VOTE_REMARK.Length <= 0)
        {
            return (0);
        }
        int nVOTE_REMARK = Int32.Parse(VOTE_REMARK);
        if (nVOTE_REMARK > 0)
        {
            return ((Int32.Parse(VOTE_NUMBER) * 100 / nVOTE_REMARK));
        }
        return (0);
    }

前置代码中的数据绑定

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="100%">
            <Columns>
                <asp:TemplateField HeaderText="题号">
                    <ItemTemplate>
                       <%#DataBinder.Eval(Container.DataItem,"VOTEID")%>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="百分比">
                    <ItemTemplate>
                        <asp:Image ID="Image1" Width='<%#FormatVoteCount(DataBinder.Eval(Container.DataItem,"VOTE_NUMBER").ToString(),"100") %>' runat="server" ImageUrl="~/Images/vote.gif" /><%#FormatVoteCount(DataBinder.Eval(Container.DataItem,"VOTE_NUMBER").ToString(),"100")%>%
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="总票数">
                    <ItemTemplate>
                       <%#DataBinder.Eval(Container.DataItem,"VOTE_REMARK")%>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>