select标签左边集合和右边集合 ,添加,移除, 多选添加,移除功能

select标签左边集合和右边集合 ,添加,移除, 多选添加,移除功能

 

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;' οndblclick="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)" οnclick="moveOption(document.getElementById('left'),document.getElementById('right'))">
                <input type="button" value="移除(可全选)" οnclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
            </td>
            <td width="40%">
                <select  multiple name="right" id="right" size="6" style='width:200;'
                         οndblclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
                </select>
            </td>
        </tr>
         <tr>
            <td colspan="3">
                <CENTER>
                    <INPUT TYPE="button" value="保存" οnclick="saveButton(document.getElementById('right'));">
                    <INPUT TYPE="button" value="取消" οnclick="moveOption(document.getElementById('right'), document.getElementById('left'))">
                </CENTER></td>
        </tr>
       <%-- <tr>
            <td colspan="3">
                <CENTER>
                    <INPUT TYPE="button" value="置顶" οnclick="moveTop(document.getElementById('right'));">
                    <INPUT TYPE="button" value="上移" οnclick="moveUp(document.getElementById('right'));">
                    <INPUT TYPE="button" value="下移" οnclick="moveDown(document.getElementById('right'));">
                    <INPUT TYPE="button" value="置底" οnclick="moveBottom(document.getElementById('right'));">
                </CENTER></td>
        </tr>--%>
    </table>


</body>
</html>

 

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