HTMLSelectElement.form

在此页

句法
范例
规范
浏览器兼容性
相关话题

HTMLSelectElement.form 只读特性返回 HTMLFormElement representing the form that this element is associated with. If the element is not associated with of a <form> element, then it returns null .

句法

编辑

aForm = aSelectElement.form.selectname;

范例

HTML

<form action="http://www.google.com/search" method="get">
 <label>Google: <input type="search" name="q"></label> <input type="submit" value="Search...">
</form>

Javascript

A property available on all form elements, "type" returns the type of the calling form element. For SELECT, the two possible values are " select-one " or " select-multiple ", depending on the type of selection list. The below code gives all SELECT elements in a particular form a CSS class of " selectclass ":

<script type="text/javascript">
var form_element = document.getElementById('subscribe_form');
var vist = form_element.style;
if (vist.display=='' || vist.display=='none')
{
  vist.display = 'block';
}
else
{
  vist.display = 'none';
}
</script>

规范

规范	状态	注释
HTML 实时标准 The definition of 'form' in that specification.	实时标准
HTML5 The definition of 'HTMLSelectElement' in that specification.	推荐	Initial definition, snapshot of HTML 实时标准 .

浏览器兼容性

更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`form`	Chrome Yes	Edge 12	Firefox Yes	IE Yes	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

元数据

最后修改： 2019 年 3 月 23 日

在此页

句法

范例

HTML

Javascript

规范

浏览器兼容性

图例

相关话题