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HTMLSelectElement.form - Web APIs 编辑

The HTMLSelectElement.form read-only property returns a 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.

Syntax

Edit

aForm = aSelectElement.form.selectname;

Example

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>

Specifications

Specification	Status	Comment
HTML Living Standard The definition of 'form' in that specification.	Living Standard
HTML5 The definition of 'HTMLSelectElement' in that specification.	Recommendation	Initial definition, snapshot of HTML Living Standard.