将复选框设置为在Repeater / CheckboxList中选中
[英]Set checkbox as checked in Repeater/CheckboxList
问题描述
I'm using a Repeater to show some data coming from a web service. 
我正在使用中继器来显示来自Web服务的一些数据。
My Repeater structure is: 我的Repeater结构是：
<asp:Repeater ID="rptgrp" runat="server">
<ItemTemplate>
<asp:CheckBoxList ID="chkBoxListGoup" runat="server"
DataSource='<%# DataBinder.Eval(Container.DataItem, "Titles")%>'
DataTextField="Title"
DataValueField="IDTitle">
</asp:CheckBoxList>
</ItemTemplate>
</asp:Repeater>
Now, my web service returns these fields in " Titles ": 现在，我的Web服务将在“ 标题 ”中返回以下字段：
1) Title 1）标题
2) IDTitle 2）IDTitle
3) isUserTitle 3）isUserTitle
Now, I would like to set checked a checkbox when isUserTitle is = 1. 现在，我想在isUserTitle = 1时设置选中的复选框。
How can I do that? 我怎样才能做到这一点？
4 个解决方案
解决方案1
2 2014-11-17 12:14:17
You can find checkboxlist as follows 您可以找到以下复选框
Find checkboxlist in itemdatabound, check item text of every checkboxlist using loop, select the item whose text is 1 在itemdatabound中找到复选框列表，使用循环检查每个复选框列表的项目文本，选择文本为1的项目
Protected void Repeater_ItemDataBound(Object Sender, RepeaterItemEventArgs e) {
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
CheckBoxList chklst = (CheckBoxList)e.Item.FindControl("chkBoxListGoup");
for (int i = 0; i < chk.Items.Count; i++)
{
if (chk.Items[i].Text == "1")
{
chk.Items[i].Selected = true;
}
}
}
}
解决方案2
0 2014-11-17 12:08:41
Try changing <asp:CheckBoxList ID="chkBoxListGoup" runat="server" to 尝试将<asp:CheckBoxList ID="chkBoxListGoup" runat="server"更改为
<asp:CheckBoxList ID="chkBoxListGoup" Checked='<%#Eval("Flag")%>' runat="server"
Flag being your Column.. 标记为您的专栏。
Then in your method or event handler you want to run some code to say if this value = 1 checked, elseif value = 0 unchecked... 然后在您的方法或事件处理程序中，您要运行一些代码来说明此值= 1是否选中，否则如果value = 0未选中...
解决方案3
0 2014-11-17 14:19:35
Here is sample code that demonstrates the idea: 这是演示此想法的示例代码：
Code-behind: 后台代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.UI.WebControls;
using WebApp.RepeaterCheckboxList.TODODatasetTableAdapters;
namespace WebApp.RepeaterCheckboxList
{
public partial class WebForm1 : System.Web.UI.Page
{
IEnumerable<TODODataset.TasksViewRow> view;
IEnumerable<TODODataset.TasksViewRow> subview;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
TasksViewTableAdapter adp = new TasksViewTableAdapter();
var dt = adp.GetData();
view = dt.AsEnumerable();
var names = (from x in view
select new
{
Person = x.Name,
ID = x.PersonID
}).Distinct();
DataList1.DataSource = names;
DataList1.DataBind();
}
}
protected void CheckBoxList1_DataBound(object sender, EventArgs e)
{
CheckBoxList theList = (CheckBoxList)sender;
var person = ((DataListItem)theList.Parent).DataItem as dynamic;
var name = person.Person;
var id = person.ID;
var vw = subview;
for (int i = 0, j = vw.Count(); i < j; i++)
{
var task = vw.ElementAt(i);
theList.Items[i].Selected = task.Completed;
}
}
protected IEnumerable<TODODataset.TasksViewRow> GetTasks(object data)
{
var vw = data as dynamic;
return subview = (from x in view
where x.PersonID == vw.ID
select x);
}
}
}
Aspx: Aspx：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApp.RepeaterCheckboxList.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataList ID="DataList1" runat="server">
<ItemTemplate>
<div style="padding:5px">
<h3><%# Eval("Person") %></h3>
<div>
<asp:CheckBoxList OnDataBound="CheckBoxList1_DataBound" ID="CheckBoxList1"
runat="server"
DataTextField="TaskDesc" DataValueField="TaskID"
DataSource="<%# GetTasks(Container.DataItem) %>"></asp:CheckBoxList>
</div>
</div>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</body>
</html>
If you are interested in the data, click here 如果您对数据感兴趣，请单击此处
解决方案4
0 2014-11-17 14:27:56
Try just setting the Checked value to the object being Eval ed. 尝试仅将Checked值设置为要Eval的对象。
<asp:Repeater ID="rptgrp" runat="server">
<ItemTemplate>
<asp:CheckBoxList ID="chkBoxListGoup" runat="server"
Checked=<%# Eval("isUserTitle") %>>
</asp:CheckBoxList>
</ItemTemplate>
</asp:Repeater>
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.