使用LISTBOX控件实现选课 在线等待中 有两个LISTBOX控件,第一个的内容已经给定,通过点击第一个LISTBOX1的课程,将它添加到第二个LISTBOX2当中,并且不允许选择重复的项。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 JS判断 listbox 好像有一个 只允许单选的属性 忘记了不行就JS <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ChooseRece.aspx.cs" Inherits="OA.MSG.ChooseRece" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>用户</title> <link href="../images/Site_Css.css" rel="stylesheet" type="text/css" /></head><body> <form id="form1" runat="server"> <div> <table class="tab21"> <TR> <TD style="WIDTH: 79px; height: 123px;"> <asp:ListBox ID="lbMoveFrom" runat="server" CssClass="input" Height="145px" SelectionMode="Multiple" Width="100px" > </asp:ListBox></TD> <TD style="WIDTH: 77px; height: 123px;" align="center"> <INPUT onclick="JavaScript:AddItem('lbMoveFrom','lbMoveTo')" tabIndex="8" class="button" type="button" value="添加>>" name="Input" ><br /><br /> <INPUT onclick="JavaScript:DelItem('lbMoveTo','lbMoveFrom')" tabIndex="9" class="button" type="button" value="<<移出" name="Input2" ><br /><br /> <INPUT type="button" onclick="JavaScript:AddItemAll('lbMoveFrom','lbMoveTo')" value="全添加>>" class="button"> </TD> <TD bgColor="#ffffff" style="height: 123px"> <asp:ListBox ID="lbMoveTo" runat="server" CssClass="input" Height="145px" SelectionMode="Multiple" Width="99px" ></asp:ListBox></TD> </TR> </table> </div> <br /> <center style="border-top:double 3px #CCCCCC"><br /> <input id="hidValue" type="hidden" /> <input id="hidText" type="hidden" /> <input id="btn" type="button" onclick="getValues()" value="选好了,确定" class="button" /> </center><script language="javascript" type="text/javascript"> function AddItem(lbFrom1,lbTo1) { lbFrom=document.form1.elements[lbFrom1]; lbTo=document.form1.elements[lbTo1]; var fromCount = lbFrom.options.length; if (fromCount==0) { alert("没有可供选择的数据"); return; } for(var h=0;h<fromCount;h++) { if (lbFrom.options[h].selected ) { var selectValue = lbFrom.options[h].value; var selectText = lbFrom.options[h].text; var toCount = lbTo.options.length; var bool_ = false; for (k=0; k<toCount; k++ ) { if (lbTo.options[k].value == selectValue) { bool_ = true; break; } } if ( bool_ == false) { lbTo.options[toCount] = new Option(selectText,selectValue); DeletSingle(lbFrom,h); break; } } } } function DelItem(lbTo1,lbFrom1) { lbFrom=document.form1.elements[lbFrom1]; lbTo=document.form1.elements[lbTo1]; var minSelected=0; for (var i=lbTo.length-1; i>=0; i--) { if (lbTo.options[i].selected) { if (minSelected==0 || i<minSelected) { minSelected=i; AddItem(lbTo1,lbFrom1); break; } } } var i=lbFrom.length; if (i>0) { minSelected=i-1; lbFrom.options[minSelected].selected=true; } } function AddItemAll(lbFrom1,lbTo1) { lbFrom=document.form1.elements[lbFrom1]; lbTo=document.form1.elements[lbTo1]; var fromCount = lbFrom.options.length; if (fromCount==0) return; for(var h=0;h<fromCount;h++) { var code = lbFrom.options[h].value; var value= lbFrom.options[h].text; var toCount = lbTo.options.length; lbTo.options[toCount] = new Option(value, code); } //删除所有项 for(var h=fromCount;h>=0;h--) { DeletSingle(lbFrom,h); } } //删除单个项 function DeletSingle(obj,index) { obj.options[index] = null; } //将选择的值放入隐藏控件 function getValues() { lbTo=document.form1.elements["lbMoveTo"]; var ObjHid = document.getElementById('hidValue'); var ObjText = document.getElementById('hidText'); ObjHid.value = ""; ObjText.value=""; var m = lbTo.options.length; if(m>0) { for(var i = 0 ; i < m ; i++) { ObjHid.value += lbTo.options[i].value+","; ObjText.value+= lbTo.options[i].text+","; } // alert(ObjText.value+" "+ObjHid.value); submitinfo(ObjText.value,ObjHid.value); } else { alert("请选择数据"); return false; } } function submitinfo(id,name){ // alert(id+" "+name); <%if(Request.QueryString["form"]!=""){%> //alert(id+" "+name); window.opener.document.<%=Request.QueryString["form"]%>.<%=Request.QueryString["objCode"]%>.value=id; window.opener.document.<%=Request.QueryString["form"]%>.<%=Request.QueryString["objName"]%>.value=name; <%}%> window.close(); }</script> </form></body></html>JS实现 关于Ajax长连接中如何实现阻塞http请求 jquery ajax加载数据问题 为什么formview模版里的内容显示不出来 如何在循还添加外加一个事务,控制他? 用参数传递怎么模糊查询mysql中,不能使用存储过程 多行添加的问题,帮帮忙 TeeChart控件下载,不能数据绑定问题! WTS分页三剑侠1.0正式版+项目源代码 下载 Calendar怎么只显示当月的日期啊??? VS2013新建web项目所有的aspx页面全部浏览时报错“未能加载类型“XXX.Web.Global”” 网页显示图片(不知道图片名字)C# .NET 根据出生年月日判断生肖的
不行就JS
<head runat="server">
<title>用户</title>
<link href="../images/Site_Css.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="tab21">
<TR>
<TD style="WIDTH: 79px; height: 123px;">
<asp:ListBox ID="lbMoveFrom" runat="server" CssClass="input" Height="145px" SelectionMode="Multiple"
Width="100px" >
</asp:ListBox></TD>
<TD style="WIDTH: 77px; height: 123px;" align="center">
<INPUT onclick="JavaScript:AddItem('lbMoveFrom','lbMoveTo')" tabIndex="8" class="button" type="button"
value="添加>>" name="Input" ><br /><br />
<INPUT onclick="JavaScript:DelItem('lbMoveTo','lbMoveFrom')" tabIndex="9" class="button" type="button"
value="<<移出" name="Input2" ><br /><br />
<INPUT type="button" onclick="JavaScript:AddItemAll('lbMoveFrom','lbMoveTo')"
value="全添加>>" class="button">
</TD>
<TD bgColor="#ffffff" style="height: 123px">
<asp:ListBox ID="lbMoveTo" runat="server" CssClass="input" Height="145px" SelectionMode="Multiple"
Width="99px" ></asp:ListBox></TD>
</TR>
</table>
</div>
<br />
<center style="border-top:double 3px #CCCCCC"><br />
<input id="hidValue" type="hidden" />
<input id="hidText" type="hidden" />
<input id="btn" type="button" onclick="getValues()" value="选好了,确定"
class="button" />
</center>
<script language="javascript" type="text/javascript">
function AddItem(lbFrom1,lbTo1)
{
lbFrom=document.form1.elements[lbFrom1];
lbTo=document.form1.elements[lbTo1];
var fromCount = lbFrom.options.length;
if (fromCount==0)
{
alert("没有可供选择的数据");
return;
}
for(var h=0;h<fromCount;h++)
{
if (lbFrom.options[h].selected )
{
var selectValue = lbFrom.options[h].value;
var selectText = lbFrom.options[h].text;
var toCount = lbTo.options.length;
var bool_ = false;
for (k=0; k<toCount; k++ )
{
if (lbTo.options[k].value == selectValue)
{
bool_ = true;
break;
}
}
if ( bool_ == false)
{
lbTo.options[toCount] = new Option(selectText,selectValue);
DeletSingle(lbFrom,h);
break;
}
}
}
}
function DelItem(lbTo1,lbFrom1)
{
lbFrom=document.form1.elements[lbFrom1];
lbTo=document.form1.elements[lbTo1];
var minSelected=0;
for (var i=lbTo.length-1; i>=0; i--)
{
if (lbTo.options[i].selected)
{
if (minSelected==0 || i<minSelected)
{
minSelected=i;
AddItem(lbTo1,lbFrom1);
break;
}
}
}
var i=lbFrom.length;
if (i>0)
{
minSelected=i-1;
lbFrom.options[minSelected].selected=true;
}
}
function AddItemAll(lbFrom1,lbTo1)
{
lbFrom=document.form1.elements[lbFrom1];
lbTo=document.form1.elements[lbTo1];
var fromCount = lbFrom.options.length;
if (fromCount==0)
return;
for(var h=0;h<fromCount;h++)
{
var code = lbFrom.options[h].value;
var value= lbFrom.options[h].text;
var toCount = lbTo.options.length;
lbTo.options[toCount] = new Option(value, code);
}
//删除所有项
for(var h=fromCount;h>=0;h--)
{
DeletSingle(lbFrom,h);
}
}
//删除单个项
function DeletSingle(obj,index)
{
obj.options[index] = null;
}
//将选择的值放入隐藏控件
function getValues()
{
lbTo=document.form1.elements["lbMoveTo"];
var ObjHid = document.getElementById('hidValue');
var ObjText = document.getElementById('hidText');
ObjHid.value = "";
ObjText.value="";
var m = lbTo.options.length;
if(m>0)
{
for(var i = 0 ; i < m ; i++)
{
ObjHid.value += lbTo.options[i].value+",";
ObjText.value+= lbTo.options[i].text+",";
}
// alert(ObjText.value+" "+ObjHid.value);
submitinfo(ObjText.value,ObjHid.value);
}
else
{
alert("请选择数据");
return false;
}
}
function submitinfo(id,name){
// alert(id+" "+name);
<%if(Request.QueryString["form"]!=""){%>
//alert(id+" "+name);
window.opener.document.<%=Request.QueryString["form"]%>.<%=Request.QueryString["objCode"]%>.value=id;
window.opener.document.<%=Request.QueryString["form"]%>.<%=Request.QueryString["objName"]%>.value=name;
<%}%>
window.close();
}
</script>
</form>
</body>
</html>JS实现