listboxremoveexample.htm

来自「这是javascript高级程序设计的源码」· HTM 代码 · 共 29 行

HTM
29
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<html>
    <head>
        <title>Listbox Remove Example</title>
        <script type="text/javascript" src="listutil.js"></script>
        <script type="text/javascript">
            function removeItem() {
                var oListbox = document.getElementById("selListbox");
                var oTxtIndex = document.getElementById("txtIndex");
     
                ListUtil.remove(oListbox, parseInt(oTxtIndex.value));
            }
        </script>
    </head>
    <body>
        <form>
            <select id="selListbox" size="5">
                 <option>Original Value 0</option>
                 <option>Original Value 1</option>
                 <option>Original Value 2</option>
                 <option>Original Value 3</option>
                 <option>Original Value 4</option>
            </select><br />
            Click the "Remove" button to remove the item with this position:<br />
            <input type="text" id="txtIndex" /><br />
            <input type="button" value="Remove" onclick="removeItem()" />
       </form>
    </body>
</html>

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