复制代码 代码如下:
<html>
<head>
    <title>Javascript版选择下拉菜单互移且排序</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
    <p>选定一项或多项然后点击添加或移除(按住shift或ctrl可以多选),或在选择项上双击进行添加和移除。</p>
    <form method="post" name="myform">
    <table border="0" width="300">
        <tr>
            <td width="40%">
                <select style="width:100px; height:200px" multiple name="list1" size="12" ondblclick="moveOption(document.myform.list1, document.myform.list2)">
                    <option value="北京">北京</option>
                    <option value="上海">上海</option>
                    <option value="山东">山东</option>
                    <option value="安徽">安徽</option>
                    <option value="重庆">重庆</option>
                    <option value="福建">福建</option>
                    <option value="甘肃">甘肃</option>
                    <option value="广东">广东</option>
                    <option value="广西">广西</option>
                    <option value="贵州">贵州</option>
                    <option value="海南">海南</option>
                    <option value="河北">河北</option>
                    <option value="黑龙江">黑龙江</option>
                    <option value="河南">河南</option>
                    <option value="湖北">湖北</option>
                    <option value="湖南">湖南</option>
                    <option value="内蒙古">内蒙古</option>
                    <option value="江苏">江苏</option>
                    <option value="江西">江西</option>
                    <option value="吉林">吉林</option>
                    <option value="辽宁">辽宁</option>
                    <option value="宁夏">宁夏</option>
                    <option value="青海">青海</option>
                    <option value="山西">山西</option>
                    <option value="陕西">陕西</option>
                    <option value="四川">四川</option>
                    <option value="天津">天津</option>
                    <option value="西藏">西藏</option>
                    <option value="新疆">新疆</option>
                    <option value="云南">云南</option>
                    <option value="浙江">浙江</option>
                    <option value="香港">香港</option>
                    <option value="澳门">澳门</option>
                    <option value="台湾">台湾</option>
                    <option value="其他">其他</option>
                </select>
            </td>
            <td width="20%" align="center">
                <input type="button" value="" onclick="moveOption(document.myform.list1, document.myform.list2)"><br />
                <br />
                <input type="button" value="<<" onclick="moveOption(document.myform.list2, document.myform.list1)">
            </td>
            <td width="40%">
                <select style="width:100px; height:200px" multiple name="list2" size="12" ondblclick="moveOption(document.myform.list2, document.myform.list1)">
                </select>
            </td>
            <td>
                <button onclick="changepos(list2,-1)" type="button">
                    ∧</button>
                <br />
                <button onclick="changepos(list2,1)" type="button">
                    ∨</button>
            </td>
        </tr>
    </table>
    值:<input type="text" name="city" size="40">
    </form>
    <script language="JavaScript">
    <!--
        function moveOption(e1, e2) {
            try {
                for (var i = 0; i < e1.options.length; i++) {
                    if (e1.options[i].selected) {
                        var e = e1.options[i];
                        e2.options.add(new Option(e.text, e.value));
                        e1.remove(i);
                        i = i - 1
                    }
                }
                document.myform.city.value = getvalue(document.myform.list2);
            }
            catch (e) { }
        }

        function getvalue(geto) {
            var allvalue = "";
            for (var i = 0; i < geto.options.length; i++) {
                allvalue += geto.options[i].value + ",";
            }
            return allvalue;
        }

        function changepos(obj, index) {
            if (index == -1) {
                if (obj.selectedIndex > 0) {
                    obj.options(obj.selectedIndex).swapNode(obj.options(obj.selectedIndex - 1))
                }
            }
            else if (index == 1) {
                if (obj.selectedIndex < obj.options.length - 1) {
                    obj.options(obj.selectedIndex).swapNode(obj.options(obj.selectedIndex + 1))
                }
            }
        }
    //-->
    </script>
</body>
</html>

标签:
ListBox,上移,下移,左移,右移

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