How to set textarea read-only_How to set textarea read-only-Common Problem-php.cn

Home

Common Problem

How to set textarea read-only

zbt

Sep 28, 2023 am 11:17 AM

textarea tag textarea

You can use the readonly attribute, disabled and readwrite attributes to set the textarea read-only. Detailed introduction: 1. readonly attribute, the value of the readonly attribute is readonly; 2. disabled attribute, the content of the element cannot be changed, because the value of the disabled attribute is disabled; 3. readwrite attribute, the content of the <textarea> element Content can be changed etc. </p></blockquote> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/202309/28/2023092811013122752.jpg" class="lazy" alt="How to set textarea read-only" ></p> <p>To set the <textarea> element in HTML to be read-only, you can use the readonly attribute. This is a boolean property and if set to true, the content of the <textarea> element cannot be changed. If set to false (the default), the content can be changed. </p> <p>The following is an example of using the readonly attribute to set the <textarea> element to be read-only: </p> <p><textarea readonly="readonly">This is a read-only text area.

In this example, the content of the element cannot be changed because the value of the readonly attribute is readonly (that is, true). </p> <p>In addition to the readonly attribute, there are some other attributes that can be used to control the read and write permissions of the <textarea> element, such as the disabled and readwrite attributes. The disabled attribute sets the <textarea> element to a disabled state, making it impossible to change. The readwrite attribute sets the <textarea> element to a readable and writable state so that it can be changed. </p> <p>The following is an example of using the disabled attribute to set the <textarea> element to be read-only: </p> <p><textarea disabled="disabled">This is a disabled text area.

In this example, the content of the element cannot be changed because the value of the disabled attribute is disabled (that is, true). </p> <p>The readwrite attribute can be used to set the <textarea> element to a read-write state, as shown below: </p> <p><textarea readwrite="readwrite"> This is a read-write text area.

In this example, (i.e. true).

In short, to set the element in HTML to be read-only, you can use the readonly attribute. The readonly attribute sets the content of the <textarea> element to read-only so that it cannot be changed. </p><p>The above is the detailed content of How to set textarea read-only. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn</div> </div> </div> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-5902227090019525" data-ad-slot="2507867629"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <div class="AI_ToolDetails_main4sR"> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3653428331" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script>  <div class="phpgenera_Details_mainR3"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hottools2.png" alt="" /> <h2>Hot AI Tools</h2> </div> <div class="phpgenera_Details_mainR3_bottom"> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/ai/undresserai-undress" title="Undresser.AI Undress" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411540686492.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Undresser.AI Undress" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/ai/undresserai-undress" title="Undresser.AI Undress" class="phpmain_tab2_mids_title"> <h3>Undresser.AI Undress</h3> </a> <p>AI-powered app for creating realistic nude photos</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411552797167.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="AI Clothes Remover" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_title"> <h3>AI Clothes Remover</h3> </a> <p>Online AI tool for removing clothes from photos.</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/ai/undress-ai-tool" title="Undress AI Tool" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173410641626608.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Undress AI Tool" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/ai/undress-ai-tool" title="Undress AI Tool" class="phpmain_tab2_mids_title"> <h3>Undress AI Tool</h3> </a> <p>Undress images for free</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/ai/clothoffio" title="Clothoff.io" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411529149311.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Clothoff.io" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/ai/clothoffio" title="Clothoff.io" class="phpmain_tab2_mids_title"> <h3>Clothoff.io</h3> </a> <p>AI clothes remover</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/ai/ai-hentai-generator" title="AI Hentai Generator" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173405034393877.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="AI Hentai Generator" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/ai/ai-hentai-generator" title="AI Hentai Generator" class="phpmain_tab2_mids_title"> <h3>AI Hentai Generator</h3> </a> <p>Generate AI Hentai for free.</p> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="//m.sbmmt.com/ai">Show More</a> </div> </div> </div> <script src="https://sw.php.cn/hezuo/cac1399ab368127f9b113b14eb3316d0.js" type="text/javascript"></script> <div class="phpgenera_Details_mainR4"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hotarticle2.png" alt="" /> <h2>Hot Article</h2> </div> <div class="phpgenera_Details_mainR4_bottom"> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/1796780570.html" title="R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)" class="phpgenera_Details_mainR4_bottom_title">R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>4 weeks ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/1796780641.html" title="R.E.P.O. Best Graphic Settings" class="phpgenera_Details_mainR4_bottom_title">R.E.P.O. Best Graphic Settings</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>4 weeks ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/1796785841.html" title="Assassin's Creed Shadows: Seashell Riddle Solution" class="phpgenera_Details_mainR4_bottom_title">Assassin's Creed Shadows: Seashell Riddle Solution</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>2 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/1796780520.html" title="R.E.P.O. How to Fix Audio if You Can't Hear Anyone" class="phpgenera_Details_mainR4_bottom_title">R.E.P.O. How to Fix Audio if You Can't Hear Anyone</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>1 months ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/1796780523.html" title="R.E.P.O. Chat Commands and How to Use Them" class="phpgenera_Details_mainR4_bottom_title">R.E.P.O. Chat Commands and How to Use Them</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>1 months ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="//m.sbmmt.com/article.html">Show More</a> </div> </div> </div> <div class="phpgenera_Details_mainR3"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hottools2.png" alt="" /> <h2>Hot Tools</h2> </div> <div class="phpgenera_Details_mainR3_bottom"> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/toolset/development-tools/92" title="Notepad++7.3.1" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab96f0f39f7357.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Notepad++7.3.1" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/toolset/development-tools/92" title="Notepad++7.3.1" class="phpmain_tab2_mids_title"> <h3>Notepad++7.3.1</h3> </a> <p>Easy-to-use and free code editor</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/toolset/development-tools/93" title="SublimeText3 Chinese version" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab97a3baad9677.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="SublimeText3 Chinese version" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/toolset/development-tools/93" title="SublimeText3 Chinese version" class="phpmain_tab2_mids_title"> <h3>SublimeText3 Chinese version</h3> </a> <p>Chinese version, very easy to use</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/toolset/development-tools/121" title="Zend Studio 13.0.1" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab97ecd1ab2670.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Zend Studio 13.0.1" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/toolset/development-tools/121" title="Zend Studio 13.0.1" class="phpmain_tab2_mids_title"> <h3>Zend Studio 13.0.1</h3> </a> <p>Powerful PHP integrated development environment</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/toolset/development-tools/469" title="Dreamweaver CS6" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58d0e0fc74683535.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Dreamweaver CS6" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/toolset/development-tools/469" title="Dreamweaver CS6" class="phpmain_tab2_mids_title"> <h3>Dreamweaver CS6</h3> </a> <p>Visual web development tools</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="//m.sbmmt.com/toolset/development-tools/500" title="SublimeText3 Mac version" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58d34035e2757995.png?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="SublimeText3 Mac version" /> </a> <div class="phpmain_tab2_mids_info"> <a href="//m.sbmmt.com/toolset/development-tools/500" title="SublimeText3 Mac version" class="phpmain_tab2_mids_title"> <h3>SublimeText3 Mac version</h3> </a> <p>God-level code editing software (SublimeText3)</p> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="//m.sbmmt.com/ai">Show More</a> </div> </div> </div> <div class="phpgenera_Details_mainR4"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hotarticle2.png" alt="" /> <h2>Hot Topics</h2> </div> <div class="phpgenera_Details_mainR4_bottom"> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/gmailyxdlrkzn" title="Where is the login entrance for gmail email?" class="phpgenera_Details_mainR4_bottom_title">Where is the login entrance for gmail email?</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>7529</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>15</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/cakephp-tutor" title="CakePHP Tutorial" class="phpgenera_Details_mainR4_bottom_title">CakePHP Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1378</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>52</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/steamdzhmcssmgs" title="What is the format of the account name of steam" class="phpgenera_Details_mainR4_bottom_title">What is the format of the account name of steam</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>81</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>11</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/winactivationkeyper" title="win11 activation key permanent" class="phpgenera_Details_mainR4_bottom_title">win11 activation key permanent</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>54</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>19</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="//m.sbmmt.com/faq/newyorktimesdailybrief" title="nyt connections hints and answers" class="phpgenera_Details_mainR4_bottom_title">nyt connections hints and answers</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>21</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>76</span> </div> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="//m.sbmmt.com/faq/zt">Show More</a> </div> </div> </div> </div> </div> </div> </main> <footer> <div class="footer"> <div class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training，Help PHP learners grow quickly！</p> </div> <div class="footermid"> <a href="//m.sbmmt.com/about/us.html">About us</a> <a href="//m.sbmmt.com/about/disclaimer.html">Disclaimer</a> <a href="//m.sbmmt.com/update/article_0_1.html">Sitemap</a> </div> <div class="footerbottom"> <p> © php.cn All rights reserved </p> </div> </div> </footer> <input type="hidden" id="verifycode" value="/captcha.html"> <script>layui.use(['element', 'carousel'], function () {var element = layui.element;$ = layui.jquery;var carousel = layui.carousel;carousel.render({elem: '#test1', width: '100%', height: '330px', arrow: 'always'});$.getScript('/static/js/jquery.lazyload.min.js', function () {$("img").lazyload({placeholder: "/static/images/load.jpg", effect: "fadeIn", threshold: 200, skip_invisible: false});});});</script> <script src="/static/js/common_new.js"></script> <script type="text/javascript" src="/static/js/jquery.cookie.js?1744812850"></script> <script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script> <link rel='stylesheet' id='_main-css' href='/static/css/viewer.min.css?2' type='text/css' media='all' /> <script type='text/javascript' src='/static/js/viewer.min.js?1'></script> <script type='text/javascript' src='/static/js/jquery-viewer.min.js'></script> <script type="text/javascript" src="/static/js/global.min.js?5.5.53"></script> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function () { var u = "https://tongji.php.cn/"; _paq.push(['setTrackerUrl', u + 'matomo.php']); _paq.push(['setSiteId', '9']); var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0]; g.async = true; g.src = u + 'matomo.js'; s.parentNode.insertBefore(g, s); })(); </script> <script> // top layui.use(function () { var util = layui.util; util.fixbar({ on: { mouseenter: function (type) { layer.tips(type, this, { tips: 4, fixed: true, }); }, mouseleave: function (type) { layer.closeAll("tips"); }, }, }); }); document.addEventListener("DOMContentLoaded", (event) => { // 定义一个函数来处理滚动链接的点击事件 function setupScrollLink(scrollLinkId, targetElementId) { const scrollLink = document.getElementById(scrollLinkId); const targetElement = document.getElementById(targetElementId); if (scrollLink && targetElement) { scrollLink.addEventListener("click", (e) => { e.preventDefault(); // 阻止默认链接行为 targetElement.scrollIntoView({ behavior: "smooth" }); // 平滑滚动到目标元素 }); } else { console.warn( `Either scroll link with ID '${scrollLinkId}' or target element with ID '${targetElementId}' not found.` ); } } // 使用该函数设置多个滚动链接 setupScrollLink("Article_Details_main1L2s_1", "article_main_title1"); setupScrollLink("Article_Details_main1L2s_2", "article_main_title2"); setupScrollLink("Article_Details_main1L2s_3", "article_main_title3"); setupScrollLink("Article_Details_main1L2s_4", "article_main_title4"); setupScrollLink("Article_Details_main1L2s_5", "article_main_title5"); setupScrollLink("Article_Details_main1L2s_6", "article_main_title6"); // 可以继续添加更多的滚动链接设置 }); window.addEventListener("scroll", function () { var fixedElement = document.getElementById("Article_Details_main1Lmain"); var scrollTop = window.scrollY || document.documentElement.scrollTop; // 兼容不同浏览器 var clientHeight = window.innerHeight || document.documentElement.clientHeight; // 视口高度 var scrollHeight = document.documentElement.scrollHeight; // 页面总高度 // 计算距离底部的距离 var distanceToBottom = scrollHeight - scrollTop - clientHeight; // 当距离底部小于或等于300px时，取消固定定位 if (distanceToBottom <= 980) { fixedElement.classList.remove("Article_Details_main1Lmain"); fixedElement.classList.add("Article_Details_main1Lmain_relative"); } else { // 否则，保持固定定位 fixedElement.classList.remove("Article_Details_main1Lmain_relative"); fixedElement.classList.add("Article_Details_main1Lmain"); } }); </script> </body> </html>