ASP.NET DropDownListCheckBox使用示例(解决回发问题)_asp.net教程-查字典教程网
ASP.NET DropDownListCheckBox使用示例(解决回发问题)
ASP.NET DropDownListCheckBox使用示例(解决回发问题)
发布时间:2017-01-07 来源:查字典编辑
摘要:这个是根据LigerUI改的,解决了回发问题资料地址http://ligerui.com/demos/comboBox/comboBoxMu...

这个是根据LigerUI改的,解决了回发问题

资料地址

http://ligerui.com/demos/comboBox/comboBoxMul.htm

具体代码

复制代码 代码如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CheckBoxList.aspx.cs" Inherits="CheckBoxList" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title></title>

<link href="lib/ligerUI/skins/Aqua/css/ligerui-all.css" rel="stylesheet" type="text/css" />

<script src="lib/jquery/jquery-1.3.2.min.js" type="text/javascript"></script>

<script src="lib/ligerUI/js/core/base.js" type="text/javascript"></script>

<script src="lib/ligerUI/js/plugins/ligerCheckBox.js" type="text/javascript"></script>

<script src="lib/ligerUI/js/plugins/ligerResizable.js" type="text/javascript"></script>

<script src="lib/ligerUI/js/plugins/ligerComboBox.js" type="text/javascript"></script>

<script type="text/javascript">

$(function () {

var manager;

$.get("CheckBoxHandle.ashx?tem=" + Math.random() + "&selectValue=" + $("#HiddenField1").val(), function (value) {

if (value.lastIndexOf("[") >= 0) {

$("#JSON").val(value);

var data = eval('(' + value + ')');

manager = $("#test1").ligerComboBox({

isShowCheckBox: true, isMultiSelect: true,

data: data, valueFieldID: 'test3', onSelected: function (newvalue) {

//这个是用于在后台获取的

$("#HiddenField1").val(newvalue);

}

});

} else {

//解决回发问题

var data = eval('(' + $("#JSON").val() + ')');

manager = $("#test1").ligerComboBox({

isShowCheckBox: true, isMultiSelect: true,

data: data, valueFieldID: 'test3', onSelected: function (newvalue) {

//这个是用于在后台获取的

$("#HiddenField1").val(newvalue);

}

});

manager.selectValue(value);

}

});

});

function clickee() {

alert($("#test3").val());

}

</script>

</head>

<body>

<form id="form1" runat="server">

<div>

<input type="text" id="test1" />

<asp:HiddenField ID="HiddenField1" ClientIDMode="Static" runat="server" />

<asp:HiddenField ID="JSON" ClientIDMode="Static" runat="server" />

<asp:Button ID="Button1" OnClientClick="clickee();" runat="server" Text="获取" />

<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

</div>

</form>

</body>

</html>

复制代码 代码如下:

<p>using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;</p><p>public partial class CheckBoxList : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{</p><p> }

protected void Button1_Click(object sender, EventArgs e)

{

this.Label1.Text = this.HiddenField1.Value;

}

}</p>

复制代码 代码如下:

<p><%@ WebHandler Language="C#" %></p><p>using System;

using System.Web;

using System.Collections.Generic;</p><p>public class CheckBoxHandle : IHttpHandler {

public void ProcessRequest (HttpContext context) {

context.Response.ContentType = "text/plain";

string select = context.Request.QueryString["selectValue"].ToString();

if (string.IsNullOrEmpty(select))

{

List<Type> list = new List<Type>();

list.Add(new Type { ID = 1, Name = "SAm" });

list.Add(new Type { ID = 2, Name = "Tom" });

list.Add(new Type { ID = 3, Name = "jim" });

context.Response.Write(JsonHelper.GetJSONString(list));

}

else

{

//解决回发问题

context.Response.Write(select);

}

}

public bool IsReusable {

get {

return false;

}

}</p><p>}</p>

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