<select>下拉选项中的链接

Question

每个下拉选项是否可以在选择时链接到某个地方而无需外部按钮？

<select>
  <option value="x">x</option>
  <option value="y">y</option>
</select>

Answer 1

您可以使用onChange属性.就像是:

<select onChange="window.location.href=this.value">
    <option value="www.google.com">A</option>
    <option value="www.aol.com">B</option>
</select>

Answer 2

添加onchange事件处理程序并将页面位置设置为值

<select id="foo">
    <option value="">Pick a site</option>
    <option value="http://www.google.com">x</option>
    <option value="http://www.yahoo.com">y</option>
</select>

<script>
    document.getElementById("foo").onchange = function() {
        if (this.selectedIndex!==0) {
            window.location.href = this.value;
        }        
    };
</script>

Answer 3

...或者如果你想/需要保持你的选项"价值",只需添加一个新属性:

<select id="my_selection">
<option value="x" href="/link/to/somewhere">value 1</option>
<option value="y" href="/link/to/somewhere/else">value 2</option>
</select>

<script>
document.getElementById('my_selection').onchange = function() {
    window.location.href = this.children[this.selectedIndex].getAttribute('href');
}
</script>