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---
title: HTMLSelectElement.setCustomValidity()
slug: Web/API/HTMLSelectElement/setCustomValidity
tags:
- HTMLSelectElement.setCustomValidity()
translation_of: Web/API/HTMLSelectElement/setCustomValidity
---
<div>{{ APIRef("HTML DOM") }}</div>
<p><code><strong>HTMLSelectElement.setCustomValidity()</strong></code> 方法设置指定的验证消息为选择元素的自定义验证消息。</p>
<p>使用空字符串来表示该元素没有自定义的验证错误。</p>
<h2 id="语法">语法</h2>
<pre class="eval language-html"><code class="language-html"><em>selectElt</em>.setCustomValidity(<em>string</em>);</code></pre>
<h3 id="Parameters">Parameters</h3>
<ul>
<li><em>string</em> 将作为错误信息包含到 {{domxref("DOMString")}} 之中。</li>
</ul>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('HTML WHATWG', '#dom-cva-setcustomvalidity', 'HTMLSelectElement.setCustomValidity()')}}</td>
<td>{{Spec2('HTML WHATWG')}}</td>
<td>No change since the latest snapshot, {{SpecName('HTML5 W3C')}}.</td>
</tr>
<tr>
<td>{{SpecName('HTML5 W3C', 'forms.html#dom-cva-setcustomvalidity', 'HTMLSelectElement.setCustomValidity()')}}</td>
<td>{{Spec2('HTML5 W3C')}}</td>
<td>Initial definition, snapshot of {{SpecName('HTML WHATWG')}}</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<div>{{CompatibilityTable}}</div>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Edge</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Edge</th>
<th>Safari (WebKit)</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatGeckoDesktop(2.0)}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Chrome</th>
<th>Edge</th>
<th>Firefox Mobile (Gecko)</th>
<th>Firefox OS</th>
<th>IE Phone</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatGeckoMobile(2.0)}}</td>
<td>1.0</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<h2 id="查看更多">查看更多</h2>
<ul>
<li><a href="/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation">Form validation.</a></li>
</ul>
|
