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select标签左边集合和右边集合 ，添加，移除， 多选添加，移除功能

2016-09-13 11:45 489 查看


代码直接复制可运行：

<%--
Created by IntelliJ IDEA.
User: Freddy
Date: 2016/9/13
Time: 10:28
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<SCRIPT LANGUAGE="JavaScript">
<!--
//上移
function moveUp(obj)
{
for(var i=1; i < obj.length; i++)
{//最上面的一个不需要移动，所以直接从i=1开始
if(obj.options[i].selected)
{
if(!obj.options.item(i-1).selected)
{
var selText = obj.options[i].text;
var selValue = obj.options[i].value;
obj.options[i].text = obj.options[i-1].text;
obj.options[i].value = obj.options[i-1].value;
obj.options[i].selected = false;
obj.options[i-1].text = selText;
obj.options[i-1].value = selValue;
obj.options[i-1].selected=true;
}
}
}
}

//下移
function moveDown(obj)
{
for(var i = obj.length -2 ; i >= 0; i--)
{//向下移动，最后一个不需要处理，所以直接从倒数第二个开始
if(obj.options[i].selected)
{
if(!obj.options[i+1].selected)
{
var selText = obj.options[i].text;
var selValue = obj.options[i].value;
obj.options[i].text = obj.options[i+1].text;
obj.options[i].value = obj.options[i+1].value;
obj.options[i].selected = false;
obj.options[i+1].text = selText;
obj.options[i+1].value = selValue;
obj.options[i+1].selected=true;
}
}
}
}
//移动
function moveOption(obj1, obj2)
{
for(var i = obj1.options.length - 1 ; i >= 0 ; i--)
{
if(obj1.options[i].selected)
{
var opt = new Option(obj1.options[i].text,obj1.options[i].value);
opt.selected = true;
obj2.options.add(opt);
obj1.remove(i);
}
}
}
//置顶
function  moveTop(obj)
{
var  opts = [];
for(var i =obj.options.length -1 ; i >= 0; i--)
{
if(obj.options[i].selected)
{
opts.push(obj.options[i]);
obj.remove(i);
}
}
var index = 0 ;
for(var t = opts.length-1 ; t>=0 ; t--)
{
var opt = new Option(opts[t].text,opts[t].value);
opt.selected = true;
obj.options.add(opt, index++);
}
}
//置底
function  moveBottom(obj)
{
var  opts = [];
for(var i =obj.options.length -1 ; i >= 0; i--)
{
if(obj.options[i].selected)
{
opts.push(obj.options[i]);
obj.remove(i);
}
}
for(var t = opts.length-1 ; t>=0 ; t--)
{
var opt = new Option(opts[t].text,opts[t].value);
opt.selected = true;
obj.options.add(opt);
}
}
//置顶
function  saveButton(obj)
{
alert("暂时没有做：TODO");
}

//-->
</SCRIPT>
<body>
<span id='feedback'></span>
<form method="post" name="myform">
<table border="0" width="400">
<tr>
<td><CENTER>可选择车辆信息</CENTER></td>
<td> </td>
<td><CENTER>要添加到的上海金桥4S围栏</CENTER></td>
</tr>
<tr>
<td width="40%">
<select  multiple name="left" id="left" size="6" style='width:200;' ondblclick="moveOption(document.getElementById('left'), document.getElementById('right'))">
<option value="20">车辆一</option>
<option value="30">车辆二</option>
<option value="40">车辆三</option>
<option value="50">车辆四</option>
<option value="60">车辆五</option>
<option value="70">车辆六</option>
<option value="80">车辆七</option>
<option value="90">车辆八</option>
</select>
</td>
<td width="20%" align="center">
<input type="button" value="添加(可全选)" onclick="moveOption(document.getElementById('left'),document.getElementById('right'))">
<input type="button" value="移除(可全选)" onclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
</td>
<td width="40%">
<select  multiple name="right" id="right" size="6" style='width:200;'
ondblclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
</select>
</td>
</tr>
<tr>
<td colspan="3">
<CENTER>
<INPUT TYPE="button" value="保存" onclick="saveButton(document.getElementById('right'));">
<INPUT TYPE="button" value="取消" onclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
</CENTER></td>
</tr>
<%-- <tr>
<td colspan="3">
<CENTER>
<INPUT TYPE="button" value="置顶" onclick="moveTop(document.getElementById('right'));">
<INPUT TYPE="button" value="上移" onclick="moveUp(document.getElementById('right'));">
<INPUT TYPE="button" value="下移" onclick="moveDown(document.getElementById('right'));">
<INPUT TYPE="button" value="置底" onclick="moveBottom(document.getElementById('right'));">
</CENTER></td>
</tr>--%>
</table>

</body>
</html>
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