本文介绍如何在ASP.NET中实现多页面选择的问题。其具体思路很简单：用隐藏的INPUT记住每次选择的项目，在进行数据绑定时，检查保存的值，再在DataGrid中进行选中显示。下面时完整的代码和例子：
查看例子
SelectMultiPages.aspx
<%@ Page EnableViewState="true" CodeBehind="SelectMultiPages.aspx.cs" Language="c#"
AutoEventWireup="false" Inherits="eMeng.Exam.SelectMultiPages" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>跨页面实现多选</title>
<META http-equiv="content-type" content="text/html; charset=gb2312">
<style>
* {FONT-SIZE:12PX}
#Status {text-align:left}
</style>
<script language="JAVASCRIPT">
function AddRemoveValues(oChk) {
//在处理这个地方需要注意的是：你保存的值应该具有唯一性，这样才能不会替换错误的项。
if(oChk.checked)
SelectMultiPage.HdnSelectedValues.value += "," + oChk.value;
else
SelectMultiPage.HdnSelectedValues.value = SelectMultiPage.HdnSelectedValues.value.replace("," + oChk.value,"");
}
</script>
</HEAD>
<BODY>
<form id="SelectMultiPage" runat="server">
<asp:datagrid id="DataGrid1" HorizontalAlign="Center" AutoGenerateColumns="False" Width="600px"
AllowPaging="True" runat="server">
<AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle>
<HeaderStyle BackColor="#AAAADD" Font-Bold="True" HorizontalAlign="Center"></HeaderStyle>
<PagerStyle HorizontalAlign="Right" Mode="NumericPages" Visible="True"></PagerStyle>
<Columns>
<asp:TemplateColumn HeaderText="选择">
<ItemTemplate>
<input type="checkbox" runat="server" id="chkSelect" onclick="AddRemoveValues(this)"
value=''<%#DataBinder.Eval(Container.DataItem,"Title")%>''/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="文章标题">
<ItemTemplate>
<asp:Literal Text=''<%# DataBinder.Eval(Container.DataItem, "Title") %>'' runat="server" ID="TitleShow"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="发布时间">
<ItemTemplate>
<asp:Literal Text=''<%# DataBinder.Eval(Container.DataItem, "CreateDate").ToString() %>'' runat="server"/>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:datagrid>
<div align=center>
<asp:button id="Button1" runat="server" Text="得到所选的值"></asp:button>
<div id="Status">
<asp:label id="Label1" runat="server"></asp:label>
</div>
<INPUT id=
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