ASP.NET 为GridView添加序号列，且支持分页连续累计显示

2019-11-17 01:51:28

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asp.net 为GridView添加序号列，且支持分页连续累计显示

为GridView添加序号列，且支持分页连续累计显示，废话不多说，直接上代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Webapplication1.WebForm1" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title></title></head><body>    <form id="form1" runat="server">    <div>            <asp:GridView ID="GridView1" runat="server" AllowPaging="True"             AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="id"             DataSourceID="SqlDataSource1" Width="100%" PageSize="5">            <Columns>                <asp:TemplateField HeaderText="序号">                    <ItemTemplate>                        <asp:Literal ID="Literal1" runat="server"   Text='<%# (Container.DataItemIndex+1) %>'></asp:Literal>                    </ItemTemplate>                     <ItemStyle BackColor="#FFFFCC" Font-Bold="True" ForeColor="#FF3300"                         Width="80px" />                </asp:TemplateField>                <asp:BoundField DataField="id" HeaderText="id" ReadOnly="True"                     SortExPRession="id" />                <asp:BoundField DataField="plateno" HeaderText="plateno"                     SortExpression="plateno" />                <asp:BoundField DataField="chassisno" HeaderText="chassisno"                     SortExpression="chassisno" />                <asp:BoundField DataField="brand" HeaderText="brand" SortExpression="brand" />                <asp:BoundField DataField="model" HeaderText="model" SortExpression="model" />                <asp:BoundField DataField="owner" HeaderText="owner" SortExpression="owner" />                <asp:BoundField DataField="telno" HeaderText="telno" SortExpression="telno" />                <asp:BoundField DataField="regdate" HeaderText="regdate"                     SortExpression="regdate" />                <asp:BoundField DataField="insurancecorp" HeaderText="insurancecorp"                     SortExpression="insurancecorp" />                <asp:BoundField DataField="insureddate" HeaderText="insureddate"                     SortExpression="insureddate" />                <asp:BoundField DataField="customertype" HeaderText="customertype"                     SortExpression="customertype" />                <asp:BoundField DataField="renewalby" HeaderText="renewalby"                     SortExpression="renewalby" />                <asp:BoundField DataField="csxcost" HeaderText="csxcost"                     SortExpression="csxcost" />                <asp:BoundField DataField="szxcost" HeaderText="szxcost"                     SortExpression="szxcost" />                <asp:BoundField DataField="sjxcost" HeaderText="sjxcost"                     SortExpression="sjxcost" />                <asp:BoundField DataField="ckxcost" HeaderText="ckxcost"                     SortExpression="ckxcost" />                <asp:BoundField DataField="dqxcost" HeaderText="dqxcost"                     SortExpression="dqxcost" />                <asp:BoundField DataField="blxcost" HeaderText="blxcost"                     SortExpression="blxcost" />                <asp:BoundField DataField="bjmpxcost" HeaderText="bjmpxcost"                     SortExpression="bjmpxcost" />                <asp:BoundField DataField="otherxcost" HeaderText="otherxcost"                     SortExpression="otherxcost" />                <asp:BoundField DataField="receivedsyxcost" HeaderText="receivedsyxcost"                     SortExpression="receivedsyxcost" />                <asp:BoundField DataField="receivedjqxcost" HeaderText="receivedjqxcost"                     SortExpression="receivedjqxcost" />                <asp:BoundField DataField="year" HeaderText="year" SortExpression="year" />                <asp:BoundField DataField="month" HeaderText="month" SortExpression="month" />                <asp:BoundField DataField="orgcode" HeaderText="orgcode"                     SortExpression="orgcode" />                <asp:BoundField DataField="attr1" HeaderText="attr1" SortExpression="attr1" />                <asp:BoundField DataField="attr2" HeaderText="attr2" SortExpression="attr2" />                <asp:BoundField DataField="attr3" HeaderText="attr3" SortExpression="attr3" />                <asp:BoundField DataField="importby" HeaderText="importby"                     SortExpression="importby" />                <asp:BoundField DataField="importbyid" HeaderText="importbyid"                     SortExpression="importbyid" />                <asp:BoundField DataField="importdatetime" HeaderText="importdatetime"                     SortExpression="importdatetime" />            </Columns>        </asp:GridView>        </div>    <asp:SqlDataSource ID="SqlDataSource1" runat="server"         ConnectionString="<%$ ConnectionStrings:ePFEDPConnectionString %>"         SelectCommand="SELECT * FROM [T_RITargetCustomerInfo]"></asp:SqlDataSource>    </form></body></html>

简要说明一下，由于我这里是作演示，所以我直接采用数据源SqlDataSource，大家仁者见仁，智者见智吧，实现自动生成序号的方法很多，最常见的是通过添加GridView1_RowDataBound方法，然后在里面依据实际情况计算序号，我这人希望能越简单且越好用就最好了，所以我采用了上面的方法，核心代码是：(Container.DataItemIndex+1)，其中Container.DataItemIndex表示当前行索引，由于索引是从0开始，所以加上1就OK了，这样整个表就有序号了，而且在分页下也是连续性的，不会出现每页从1开始的情况。

效果如下：

第一页序号

另外需要说明的是，如果大家不是采用数据源控件，而是自己手动去绑定数据源的情况，那就不能简单按照方面的方法，原因是Container.DataItemIndex在手动绑定数据源时，会索引并不会记住，每次绑定均会重新从0开始，所以这时候我们需要按照当前的页码来进行计算，代码也很简单，如下：

<asp:TemplateField HeaderText="序号">                    <ItemTemplate>                        <asp:Literal ID="Literal1" runat="server"   Text='<%# ((GridView1.PageSize * GridView1.PageIndex) + Container.DataItemIndex +1) %>'></asp:Literal>                    </ItemTemplate>                     <ItemStyle BackColor="#FFFFCC" Font-Bold="True" ForeColor="#FF3300"                         Width="80px" />                </asp:TemplateField>

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