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ASP.NET 为GridView添加序号列，且支持分页连续累计显示
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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="">
<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：
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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