GridView翻页记住选中的checkbox
aspx
js或者Juqery照样用，不影响
<%@ Page Title="分配试卷" Language="C#" MasterPageFile="~/Teacher/Teacher.Master"
CodeBehind="TestArrangePapers.aspx.cs" Inherits="OnlineTest.Teacher.TestArrangePapers" %>
<%@ Register Assembly="AspNetPager" Namespace="Wuqi.Webdiyer" TagPrefix="webdiyer" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<link href="../css/Utitlity.css" rel="stylesheet" type="text/css" />
<script src="../Scripts/Utility.js" type="text/javascript"></script>
<style>
.lst
{
width: 250px;
height: 150px;
}
</style>
<script type="text/javascript">
$(document).ready(function () {
$('#checkAll').click(function () {
// 全选或者取消全选
$('input[type=checkbox]').attr("checked", $(this).attr("checked"));
});
// 触发判断是否全选
$("input[type=checkbox]:not('#checkAll')").click(function () {
JudgeIsCheckedAll();
});
// 检测是否要勾选"全选"
function JudgeIsCheckedAll() {
var flag = true;
$("input[type=checkbox]:not('#checkAll')").each(function () {
if ($(this).attr("checked") == false) {
flag = false;
return false;
}
else {
flag = true;
}
});
if (flag) {
$('#checkAll').attr("checked", true);
}
else {
$('#checkAll').attr("checked", false);
}
}
// 下一步
$('#ContentPlaceHolder1_imgBtnImage').click(function () {
var papers = "";
$("input[type=checkbox]:not('#checkAll')").each(function () {
if ("" != $(this).val()) {
papers += $(this).next("input[type=hidden]").val() + ",";
}
else {
alert("您所填的信息不完整");
return false;
}
});
$('#ContentPlaceHolder1_hiddenPapers').val(papers);
});
});
</script>
<style type="text/css">
.tdBlue
{
background-image: url('../images/footbk.png');
background-repeat: repeat-x;
}
</style>
<table width="730" class="tablestyle">
<asp:HiddenField ID="hiddenClassIds" runat="server" />
<asp:HiddenField ID="hiddenPapers" runat="server" />
<tr>
<td style="background-image: url('../images/footbk.png'); background-repeat: repeat-x;
color: White; font-weight: bold; height: 46px;">
<div align="center">
可选的试卷</div>
</td>
</tr>
<tr>
<td align="center" style="padding-bottom: 20px; padding-top: 20px">
<br />
<asp:GridView ID="GridView1" runat="server" DataKeyNames="id" AllowSorting="true"
CellPadding="5" GridLines="Both"
BorderColor="Black"
Width="90%">
<HeaderStyle BorderColor="Black" CssClass="tdBlue"
Height="30px" Font-Bold="True"
HorizontalAlign="Center" />
<RowStyle BorderColor="Black" Height="20px"
HorizontalAlign="Center" Font-Size="Small" />
<Columns>
<asp:TemplateField ItemStyle-Width="35px">
<HeaderTemplate>
<input id="checkAll" type="checkbox" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="chk" runat="server"/>
<input type="hidden" value='<%#eval_r("ID")%>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="序号" ItemStyle-Width="65px">
<ItemTemplate>
<%# Container.DataItemIndex + 1 %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="试卷名称">
<ItemTemplate>
<%#eval_r("Name")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="课程名称">
<ItemTemplate>
<%#GetLesson(eval_r("LessonNum")).Name%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="出卷时间">
<ItemTemplate>
<%#eval_r("PaperTime") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="总分" ItemStyle-Width="65px">
<ItemTemplate>
<%#eval_r("Marks") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="审核状态" ItemStyle-Width="105px">
<ItemTemplate>
已审核
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
<table cellspacing="0" cellpadding="5" rules="all"
style="width: 100%; border: 0;
border-collapse: collapse">
<tr class="tdBlue" align="center"
style="font-weight: bold; height: 30px;">
<th scope="col">
序号
</th>
<th scope="col">
试卷名称
</th>
<th scope="col">
课程名称
</th>
<th scope="col">
出卷时间
</th>
<th scope="col">
总分
</th>
<th scope="col">
审核状态
</th>
<th scope="col">
编辑
</th>
<th scope="col">
删除
</th>
</tr>
<tr align="center" style="font-size: Small; height: 30px;">
<td colspan="8">
暂无数据
</td>
</tr>
</table>
</EmptyDataTemplate>
</asp:GridView>
<br />
<span>
<webdiyer:AspNetPager CssClass="paginator"
CurrentPageButtonClass="cpb" PageSize="10"
runat="server" ID="AspNetPager1"
FirstPageText="首页" NumericButtonCount="5" LastPageText="尾页"
MoreButtonType="Image" NextPageText="下一页"
NumericButtonType="Image" OnPageChanging="AspNetPager1_PageChanging"
HorizontalAlign="Center" PageIndexBoxType="DropDownList"
PrevPageText="上一页" ShowBoxThreshold="0"
ShowNavigationToolTip="True">
</webdiyer:AspNetPager>
</span><span style="float: right; position: relative; right: 30px; padding: 20px">
<asp:ImageButton ID="imgBtnImage" runat="server"
ImageUrl="../images/next2.gif" OnClick="imgBtnImage_Click" />
</span>
</td>
</tr>
</table>
</asp:Content>
cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Tool;
using OnlineTest.Datalinq;
using System.Collections;
namespace OnlineTest.Teacher
{
public partial class TestArrangePapers : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (null != Request.QueryString["strClassNums"]
&& !"".Equals(Request.QueryString["strClassNums"]))
{
// 班级编号
this.hiddenClassIds.Value = Request.QueryString["strClassNums"];
}
Bind();
}
}
protected void imgBtnImage_Click(object sender, ImageClickEventArgs e)
{
CompareOld();
String strPaperNum = "";
ArrayList lstIds = new ArrayList();
if (null != Session["chkItems"])
{
lstIds = (ArrayList)Session["chkItems"];
foreach (var v in lstIds)
{
strPaperNum += v.ToString() + ",";
}
}
else
{
// 没有分页的话，直接拿当前页面即可
strPaperNum = this.hiddenPapers.Value;
}
if (null != strPaperNum && !"".Equals(strPaperNum)
&& null != this.hiddenClassIds.Value
&& !"".Equals(this.hiddenClassIds.Value))
{
Server.Transfer("TestArrangeTime.aspx?strPaperNum="
+ strPaperNum + "&strClassNums=" + this.hiddenClassIds.Value);
}
}
public M_Lesson GetLesson(Object lessonNum)
{
return BLL.M_LessonBLL.ReadModel(lessonNum.ToString());
}
// 绑定已经审核的试卷
public void Bind()
{
if (null != BLL.M_Test_PapeBLL.ReadModels(Utility.GetUserFromSession(), 1))
{
IEnumerable<M_Test_Paper> lst =
BLL.M_Test_PapeBLL.ReadModels(Utility.GetUserFromSession(), 1);
// 起始条数
int startRecord = AspNetPager1.PageSize * (AspNetPager1.CurrentPageIndex - 1);
// 每页数目
int maxRecords = AspNetPager1.PageSize;
this.AspNetPager1.AlwaysShow = true;
// 总数目
this.AspNetPager1.RecordCount = lst.Count();
this.GridView1.DataSource = lst.Skip(startRecord).Take(maxRecords);
this.GridView1.DataBind();
}
}
// 分页事件
protected void AspNetPager1_PageChanging(object src,
Wuqi.Webdiyer.PageChangingEventArgs e)
{
OldChecked();
this.AspNetPager1.CurrentPageIndex = e.NewPageIndex;
Bind();
ShowOldChecked();
}
/// <summary>
/// 记住翻页前的选项
/// </summary>
public void OldChecked()
{
ArrayList lstIds = new ArrayList();
int index = -1;
foreach (GridViewRow row in this.GridView1.Rows)
{
index = (int)GridView1.DataKeys[row.RowIndex].Value;
bool result = ((CheckBox)row.FindControl("chk")).Checked;
if (null != Session["chkItems"])
{
lstIds = (ArrayList)Session["chkItems"];
}
if (result)
{
if (!lstIds.Contains(index))
{
lstIds.Add(index);
}
if (null != lstIds && lstIds.Count != 0)
{
Session["chkItems"] = lstIds;
}
}
}
}
/// <summary>
/// 返回该页时显示以前选择的选项
/// </summary>
public void ShowOldChecked()
{
ArrayList lstIds = (ArrayList)Session["chkItems"];
if (null != lstIds && lstIds.Count != 0)
{
foreach (GridViewRow row in this.GridView1.Rows)
{
int index = (int)GridView1.DataKeys[row.RowIndex].Value;
if (lstIds.Contains(index))
{
CheckBox chk = (CheckBox)row.FindControl("chk");
chk.Checked = true;
}
}
}
}
/// <summary>
/// 提交时比较本页的选择项是否有变化
/// </summary>
public void CompareOld()
{
ArrayList lstIds = new ArrayList();
int index = -1;
foreach (GridViewRow row in this.GridView1.Rows)
{
if (null != Session["chkItems"])
{
lstIds = (ArrayList)Session["chkItems"];
index = (int)GridView1.DataKeys[row.RowIndex].Value;
bool result = ((CheckBox)row.FindControl("chk")).Checked;
// 如果以前选了，现在不选，则去除
if (!result && lstIds.Contains(index))
{
lstIds.Remove(index);
}
if (null != lstIds && lstIds.Count != 0)
{
Session["chkItems"] = lstIds;
}
}
}
}
}
}