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  • 跨页面实现多选(转)

    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="HdnSelectedValues" type="hidden" name="HdnSelectedValues" runat="server"> </div> </form> </body> </html>

    SelectMultiPages.aspx.cs

    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>"); } #region Web 窗体设计器生成的代码 override protected void OnInit(EventArgs e) { // // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound); this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged); this.Button1.Click += new System.EventHandler(this.Button1_Click); this.Load += new System.EventHandler(this.Page_Load); } #endregion } }
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  • 原文地址：https://www.cnblogs.com/xh831213/p/328469.html
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