datagrid跨页实现多选

<!-- aspx的 -->
<%@ 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="HdnSelectedValues" type="hidden" name="HdnSelectedValues" runat="server">
</div>
</form>
</BODY>
</HTML>

//cs的
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace eMeng.Exam
{
/// <summary>
/// SelectMultiPages 的摘要说明。
/// </summary>

public class SelectMultiPages : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.HtmlControls.HtmlInputHidden HdnSelectedValues;
protected System.Web.UI.WebControls.DataGrid DataGrid1;

private void Page_Load(object sender, System.EventArgs e)
{
    
// 在此处放置用户代码以初始化页面
    if(!Page.IsPostBack)
    BindData();
}

private void DataGrid1_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
{
    DataGrid1.CurrentPageIndex 
= e.NewPageIndex;
    BindData(); 
}


void BindData()
{
    OleDbConnection cn 
= new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" 
        
+ HttpContext.Current.Server.MapPath("aspx.mdb"));
    OleDbDataAdapter da 
= new OleDbDataAdapter("Select Title, CreateDate from Document",cn);
    DataSet ds 
= new DataSet();
    da.Fill(ds);
    DataGrid1.DataSource
= ds;
    DataGrid1.DataBind();
}


private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
    
//重新显示所选择的项目
    if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    
{
        
if(HdnSelectedValues.Value.IndexOf(((Literal)e.Item.Cells[1].FindControl("TitleShow")).Text) >= 0 )
        
{
            HtmlInputCheckBox ChkSelected 
= (HtmlInputCheckBox)(e.Item.Cells[0].FindControl("ChkSelect"));
            ChkSelected.Checked 
= true;
        }

    }

}

private void Button1_Click(object sender, System.EventArgs e)
{
    
//为了显示的方便进行替换的
    Label1.Text = HdnSelectedValues.Value.Replace(",","<li>");
}


Web 窗体设计器生成的代码    

}

}



--------------转自孟宪会------------
原文地址:https://www.cnblogs.com/acelove/p/120254.html