复选框的状态不会被保存时更新面板火灾
我有一个DIV ID = campaignDiv 我动态地加载其内容
I have an div id = campaignDiv and I load its content dynamically
含量复选框。
我有每30秒触发一个更新面板。
I have an update panel that fires every 30 seconds.
在更新面板火灾，复选框返回到默认状态，这是不选。
when the update panel fires, the checkboxes return to the default state, which is unselected.
我会给你我所有的code。其实这是很简单的code。 您可以复制，粘贴在你的Visual Studio，也将努力
I will give you all my code. Actually it is very simple code. you can copy paste it in you visual studio and it will work
WebForm4.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="TestDropdownChecklist.WebForm4" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link rel="stylesheet" href="StyleSheet1.css"/>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick">
</asp:Timer>
<div id="campaignDiv" runat="server">
<ul>
</ul>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
</asp:UpdatePanel>
</form>
</body>
</html>
WebForm4.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace TestDropdownChecklist
{
public partial class WebForm4 : System.Web.UI.Page
{
private string CreateLiCheckbox(string checkBoxText)
{
return string.Format("<li><span class=\"textDropdown\">{0}</span><input runat=\"server\" id=\"{1}\" value=\"{0}\" type=\"checkbox\"><label for=\"{1}\"></label></li>", checkBoxText, checkBoxText + "dropdownID");
}
protected void Page_Load(object sender, EventArgs e)
{
int refreshtime = 30000;
Timer1.Interval = refreshtime;
if (!IsPostBack)
{
string[] comps = new string[] { "default", "sales", "direct"};
string html = "<ul>";
for (int i = 0; i < comps.Count(); i++)
{
html = html + CreateLiCheckbox(comps[i]);
}
html = html + "</ul>";
campaignDiv.InnerHtml = html;
}
else
{
}
}
protected void Timer1_Tick(object sender, EventArgs e)
{
}
}
}
StyleSheet1.css
#DropdownSeviceLink {
float: right;
margin-right: 10px;
}
a#DropdownServiceLink:visited {
color: inherit;
}
#campaignDiv {
background-color: #374954;
width: 200px;
height: 170px;
padding-bottom: 10px;
position: absolute;
top: 40px;
right: 0;
}
#campaignDiv ul {
color: #fff;
list-style: none;
overflow: auto;
padding-left: 5px;
height:100%;
}
#campaignDiv input[type=checkbox] {
visibility: hidden;
}
#campaignDiv input[type=checkbox]:checked + label {
left: 60px;
background: #26ca28;
}
#campaignDiv li {
width: 100px; /*120*/
height: 25px; /*40*/
background: #333;
margin: 13px 0px; /*20px 60px*/
border-radius: 50px;
position: relative;
}
#campaignDiv li:before {
content: 'On';
position: absolute;
top: 4px; /*12*/
left: 13px;
height: 2px;
color: #26ca28;
font-size: 16px;
}
#campaignDiv li:after {
content: 'Off';
position: absolute;
top: 4px; /*12*/
left: 71px; /*84*/
height: 2px;
color: #111;
font-size: 16px;
}
#campaignDiv li label {
display: block;
width: 36px; /*52*/
height: 18px; /*22*/
border-radius: 50px;
-webkit-transition: all .5s ease;
-moz-transition: all .5s ease;
-o-transition: all .5s ease;
-ms-transition: all .5s ease;
transition: all .5s ease;
cursor: pointer;
position: absolute;
top: 4px; /*9*/
z-index: 1;
left: 12px;
background: #ddd;
}
.textDropdown {
margin:0px;
padding:0px;
margin-left: 110px;
}
请注意，我用的 RUNAT服务器了。也许我应该以另一种方式动态地添加复选框？
Please notice that I am using runat server already. maybe I should have added the checkbox dynamically in another way?
通过互联网准备好后，我发现我可能需要复选框添加到我这样的更新面板 UpdatePanel1.ContentTemplateContainer.Controls.Add（动态控制）;
但问题是在我的情况下，该复选框是字符串不是对象。对吧？
after readying through internet, I find that I may need to add the checkboxes to my update panel like this
UpdatePanel1.ContentTemplateContainer.Controls.Add(dynamic controls);
but the problem is the the checkbox in my case is string not objects. right?
您的帮助是非常AP preciated。
Your help is highly appreciated.
你的答案是真的有用，我thaaaaaaaaaaaaaank你，但请我还是老样子没有解决这个问题，
您code使这个呈现的HTML
Your answer is really works, I thaaaaaaaaaaaaaank you , but please I stil have this issue not solved, your code made this rendered html
<ul id="campaignDiv"> <li><input id="campaignDiv_0" type="checkbox" name="campaignDiv$0" checked="checked" value="default"><label for="campaignDiv_0">default</label></li> <li><input id="campaignDiv_1" type="checkbox" name="campaignDiv$1" value="sales"><label for="campaignDiv_1">sales</label></li> <li><input id="campaignDiv_2" type="checkbox" name="campaignDiv$2" value="direct"><label for="campaignDiv_2">direct</label></li> </ul>
其中 campaignDiv 是UL的ID。好心你可以编辑你的答案让呈现的HTML可以是这样的：
where the campaignDiv is the ID of the ul. kindly can you edit your answer so the rendered html can be like this:
<div id = campaignDiv>
<ul>
<li>
checkbox here
</li>
</ul>
</div>
在code我做了campaginDiv 的id ASP：的CheckBoxList
要对code更多的空间，这是我的建议的CheckBoxList再次。我希望这是你所要求的东西。
To have more space for code here is my suggestion for the checkboxlist again. I hope it's that what you are asking for.
的.aspx
<asp:UpdatePanel ID="upStuff" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div id="campaignDiv">
<asp:CheckBoxList runat="server" RepeatLayout="UnorderedList" ID="myCheckboxList" TextAlign="Left">
</div>
</asp:CheckBoxList>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick"/>
</Triggers>
</asp:UpdatePanel>
.aspx.cs
if (!IsPostBack)
{
var comps = new[] { "default", "sales", "direct" };
for (int i = 0; i < comps.Count(); i++)
{
myCheckboxList.Items.Add(new ListItem{Text = comps[i]});
}
}
此方式，将让您选中复选框
This way it will keep your checkbox checked