使用javascript實(shí)現(xiàn)ListBox左右全選,單選,多選,全請

2024-05-06 15:54:20

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供稿：網(wǎng)友

使用javascript實(shí)現(xiàn)ListBox左右全選,單選,多選,全請。需要的朋友可以過來參考下，希望對大家有所幫助

復(fù)制代碼代碼如下:

<html>
<head>
    <meta http-equiv="Content-Type " content="text/html;   charset=gb2312 ">
    <title>list測試</title>
</head>
<body>
    <div>
        注1：左右移動進(jìn)行選取
        <br />
        <br />
        注：本頁面僅在IE6/FireFox1.5下測試過。其它瀏覽器或其它版本未經(jīng)測試。
        <br />
        <hr />
    </div>
    <form>
    <table>
        <tr>
            <td>
                <select size="6"
                    multiple="multiple" ondblclick="moveLeftOrRight(document.frm.SrcSelect,document.frm.ObjSelect) ">
                    <option value="1">講師</option>
                </select>
            </td>
            <td>
                <input type="button" value="> ">
                <br>
                <br>
                <input type="button" value=" < ">
            </td>
            <td>
                <select size="6"
                    multiple="multiple" ondblclick="moveLeftOrRight(document.frm.ObjSelect,document.frm.SrcSelect) ">
                    <option value="2">教學(xué)管理員</option>
                    <option value="3">超級管理員</option>
                </select>
            </td>
        </tr>
    </table>
    </form>
</body>
<script type="text/javascript" language="javascript">
//上移
    function moveUp() {
        var theObjOptions = document.frm.ObjSelect.options;
        for (var i = 1; i < theObjOptions.length; i++) {
            if (theObjOptions[i].selected && !theObjOptions[i - 1].selected) {
                swapOptionProperties(theObjOptions[i], theObjOptions[i - 1]);
            }
        }
    }

//下移
    function moveDown() {
        var theObjOptions = document.frm.ObjSelect.options;
        for (var i = theObjOptions.length - 2; i > -1; i--) {
            if (theObjOptions[i].selected && !theObjOptions[i + 1].selected) {
                swapOptionProperties(theObjOptions[i], theObjOptions[i + 1]);
            }
        }
    }

    function swapOptionProperties(option1, option2) {
        var tempStr = option1.value;
        option1.value = option2.value;
        option1.value = tempStr;
        tempStr = option1.text;
        option1.text = option2.text;
        option2.text = tempStr;
        tempStr = option1.selected;
        option1.selected = option2.selected;
        option2.selected = tempStr;
    }

//列表框的位置移動
    function moveLeftOrRight(fromObj, toObj) {
        for (var i = 0; i < fromObj.length; i++) {
            var srcOption = fromObj.options[i];
            if (srcOption.selected) {
                toObj.appendChild(srcOption);
                i--;
            }
        }
    }
</script>