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跨页面实现多选
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<%@ Page language="c#" Codebehind="ye.aspx.cs" AutoEventWireup="false" Inherits="CrystalReport.ye" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>跨页面实现多选</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<META http-equiv="content-type" content="text/html; charset=gb2312">
<style>
UNKNOWN { FONT-SIZE: 12px }
#Status { TEXT-ALIGN: left }
</style>
<script language="JAVASCRIPT">
function AddRemoveValues(oChk) {
if(oChk.checked)
SelectMultiPage.HdnSelectedValues.value += "," + oChk.value+",";
else
SelectMultiPage.HdnSelectedValues.value = SelectMultiPage.HdnSelectedValues.value.replace("," + oChk.value+",","");
}
</script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="SelectMultiPage" runat="server">
<asp:datagrid id="DataGrid1" HorizontalAlign="Center" AutoGenerateColumns="False" Width="600px"
AllowPaging="True" runat="server" PageSize="10">
<AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle>
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" BackColor="#AAAADD"></HeaderStyle>
<Columns>
<asp:TemplateColumn HeaderText="选择">
<ItemTemplate>
<input type="checkbox" runat="server" id="chkSelect" onclick="AddRemoveValues(this)"
value='<%#DataBinder.Eval(Container.DataItem,"id")%>' NAME="chkSelect"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="文章标识">
<ItemTemplate>
<asp:Literal Text='<%# DataBinder.Eval(Container.DataItem, "id") %>' runat="server" ID="code"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="发布时间">
<ItemTemplate>
<asp:Literal Text='<%# DataBinder.Eval(Container.DataItem, "createdate").ToString() %>' runat="server" ID="Literal1"/>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle>
</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>
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
namespace CrystalReport
{
/// <summary>
/// ye 的摘要说明。
/// </summary>
public class ye : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.HtmlControls.HtmlInputHidden HdnSelectedValues;
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();
}
#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.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.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 id, 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("id")).Text+",")>= 0 )
{
HtmlInputCheckBox ChkSelected = (HtmlInputCheckBox)(e.Item.Cells[0].FindControl("ChkSelect"));
ChkSelected.Checked = true;
}
}
}
private void Button1_Click(object sender, System.EventArgs e)
{
string str;
str = HdnSelectedValues.Value.Replace(",,","-");
str = str.Replace(",","-");
if(str.Length>0)
{
str=str.Substring(0,str.Length-1);
}
this.Label1.Text=str.Replace("-","<li>");
}
}
}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>跨页面实现多选</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<META http-equiv="content-type" content="text/html; charset=gb2312">
<style>
UNKNOWN { FONT-SIZE: 12px }
#Status { TEXT-ALIGN: left }
</style>
<script language="JAVASCRIPT">
function AddRemoveValues(oChk) {
if(oChk.checked)
SelectMultiPage.HdnSelectedValues.value += "," + oChk.value+",";
else
SelectMultiPage.HdnSelectedValues.value = SelectMultiPage.HdnSelectedValues.value.replace("," + oChk.value+",","");
}
</script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="SelectMultiPage" runat="server">
<asp:datagrid id="DataGrid1" HorizontalAlign="Center" AutoGenerateColumns="False" Width="600px"
AllowPaging="True" runat="server" PageSize="10">
<AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle>
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" BackColor="#AAAADD"></HeaderStyle>
<Columns>
<asp:TemplateColumn HeaderText="选择">
<ItemTemplate>
<input type="checkbox" runat="server" id="chkSelect" onclick="AddRemoveValues(this)"
value='<%#DataBinder.Eval(Container.DataItem,"id")%>' NAME="chkSelect"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="文章标识">
<ItemTemplate>
<asp:Literal Text='<%# DataBinder.Eval(Container.DataItem, "id") %>' runat="server" ID="code"/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="发布时间">
<ItemTemplate>
<asp:Literal Text='<%# DataBinder.Eval(Container.DataItem, "createdate").ToString() %>' runat="server" ID="Literal1"/>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle>
</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>
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
namespace CrystalReport
{
/// <summary>
/// ye 的摘要说明。
/// </summary>
public class ye : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.HtmlControls.HtmlInputHidden HdnSelectedValues;
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();
}
#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.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.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 id, 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("id")).Text+",")>= 0 )
{
HtmlInputCheckBox ChkSelected = (HtmlInputCheckBox)(e.Item.Cells[0].FindControl("ChkSelect"));
ChkSelected.Checked = true;
}
}
}
private void Button1_Click(object sender, System.EventArgs e)
{
string str;
str = HdnSelectedValues.Value.Replace(",,","-");
str = str.Replace(",","-");
if(str.Length>0)
{
str=str.Substring(0,str.Length-1);
}
this.Label1.Text=str.Replace("-","<li>");
}
}
}