以下HTML代码按预期工作。我需要的是一个下拉选项,用户将选择任何平台,右框架将加载所需的文件。
<a href="android.html" target="dynamic"> android form </a>
<a href="J2ME.html" target="dynamic"> J2ME form </a>
<a href="windows.html" target="dynamic"> windows form </a>
以下html会生成下拉选项,但如何自动加载所需的页面?
<form>
Platform:
<select name='platform'>
<option>Android </option>
<option> J2ME </option>
<option> Windows </option>
</select>
</form>
答案 0 :(得分:1)
<html>
<head>
<script type="text/javascript">
function loadFrame()
{
var s=document.getElementById("platform").value;
document.getElementById("loadContainer").innerHTML=""
var iframe = document.createElement("iframe");
iframe.src = s;
document.getElementById("loadContainer").appendChild(iframe);
}
</script>
</head>
<body>
<div style="float:left">
<form>
Platform:
<select id='platform' onchange="loadFrame()">
<option value="android.html">Android</option>
<option value="J2ME.html">J2ME</option>
<option value="Windows.html">Windows</option>
</select>
</form>
</div>
<div id="loadContainer" style="float:right"></div>
</body>
</html>
答案 1 :(得分:0)
您可以尝试这样的变体:
首先,为您的选项设置值,然后为select元素设置onchange
事件:
<form>
Platform:
<select name='platform' onchange='loadFrame(this)' id='OSList'>
<option value="1.html">Android</option>
<option value="2.html">J2ME</option>
<option value="3.html">Windows</option>
</select>
</form>
<div id="loadContainer"></div>
其次,创建一个函数,创建一个iFrame,其中src
来自所选的选项值并将其附加到某处(比如div#loadContainer):
function loadFrame(comboBox)
{
var frame = document.createElement("iframe");
frame.src = comboBox.options[comboBox.selectedIndex].value;
var container = document.getElementById("loadContainer");
container.innerHTML = "";
container.appendChild(frame);
}
查看示例here
如果你能够使用jQuery(或其他框架,你可以通过JS以这种方式绑定到select onchange
事件):
var el = $("#OSList");
el.change(function() {
var frame = document.createElement("iframe");
frame.src = el.val();
$("#loadContainer").empty().append(frame)
});
示例here
答案 2 :(得分:0)
<html>
<head>
<script type="text/javascript">
function loadFrame()
{
var select_value=document.getElementById("platform").value;
window.location =select_value;
}
</script>
</head>
<body>
<form>
Platform:
<select id='platform' onchange="loadFrame()">
<option value="andriod.html">Android</option>
<option value="j2me.html">J2ME</option>
<option value="windows.html">Windows</option>
</select>
</form>
</body>
</html>
答案 3 :(得分:0)
您可以在页面中添加一个空框架并直接更改其src,无需检索html内容,如下所示:
<html>
<head>
<script type="text/javascript">
function loadFrame(comboBox)
{
var frame = window.frames['platformFrame'],
src = comboBox.options[comboBox.selectedIndex].value;
frame.window.location.href = src; //use window.location to avoid browser capability.
}
</script>
</head>
<body>
<form>
Platform:
<select id='platform' onchange="loadFrame()">
<option value="andriod.html">Android</option>
<option value="j2me.html">J2ME</option>
<option value="windows.html">Windows</option>
</select>
</form>
<iframe src="" id="platformFrame"></iframe>
</body>
</html>