How to Freeze Table Rows and Columns Using JavaScript and CSS?
Nov 04, 2024 am 08:05 AM
How to Freeze Table Rows and Columns with JavaScript and CSS
Locking the first row and first column of a table when scrolling can be achieved using JavaScript and CSS, simulating the functionality of Excel's 'freeze panes'.
JavaScript Solution
One JavaScript solution is to create two separate tables:
- A fixed header table containing the first row and column headings.
- A scrollable body table containing the remaining table data.
Both tables are positioned absolutely using CSS, with the fixed header table positioned over the body table. When the page is scrolled, the body table moves independently while the fixed header remains fixed.
CSS Positioning
<code class="css">/* Fixed header table */
.fixed-header {
position: absolute;
top: 0;
left: 0;
z-index: 1;
}
/* Scrollable body table */
.scrollable-body {
position: absolute;
top: 0;
left: 0;
z-index: 0;
}</code>
JavaScript Activation
<code class="javascript">// Create a table with the first row as the header
const table = document.createElement('table');
const headerRow = table.createTHead().insertRow();
// Create the first column headings
for (let i = 0; i < numColumns; i++) {
headerRow.appendChild(document.createElement('th')).innerHTML = 'Heading ' + (i + 1);
}
// Create the body of the table with the remaining data
const body = table.createTBody();
for (let i = 0; i < numRows; i++) {
const row = body.insertRow();
for (let j = 0; j < numColumns; j++) {
row.appendChild(document.createElement('td')).innerHTML = 'Data ' + (i + 1) + ', ' + (j + 1);
}
}
// Split the table into two: fixed header and scrollable body
const fixedHeader = table.cloneNode(true);
fixedHeader.tBodies[0].remove();
const scrollableBody = table.cloneNode(true);
fixedHeader.tHead.remove();
// Add the two tables to the page
document.body.appendChild(fixedHeader);
document.body.appendChild(scrollableBody);
// Position the tables using CSS
fixedHeader.classList.add('fixed-header');
scrollableBody.classList.add('scrollable-body');</code>
This solution provides a fully functional "freeze panes" effect for tables, ensuring that the first row and column remain visible during scrolling.
The above is the detailed content of How to Freeze Table Rows and Columns Using JavaScript and CSS?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What is 'render-blocking CSS'?
Jun 24, 2025 am 12:42 AM
CSS blocks page rendering because browsers view inline and external CSS as key resources by default, especially with imported stylesheets, header large amounts of inline CSS, and unoptimized media query styles. 1. Extract critical CSS and embed it into HTML; 2. Delay loading non-critical CSS through JavaScript; 3. Use media attributes to optimize loading such as print styles; 4. Compress and merge CSS to reduce requests. It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.
External vs. Internal CSS: What's the Best Approach?
Jun 20, 2025 am 12:45 AM
ThebestapproachforCSSdependsontheproject'sspecificneeds.Forlargerprojects,externalCSSisbetterduetomaintainabilityandreusability;forsmallerprojectsorsingle-pageapplications,internalCSSmightbemoresuitable.It'scrucialtobalanceprojectsize,performanceneed
Does my CSS must be on lower case?
Jun 19, 2025 am 12:29 AM
No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.
CSS Case Sensitivity: Understanding What Matters
Jun 20, 2025 am 12:09 AM
CSSismostlycase-insensitive,butURLsandfontfamilynamesarecase-sensitive.1)Propertiesandvalueslikecolor:red;arenotcase-sensitive.2)URLsmustmatchtheserver'scase,e.g.,/images/Logo.png.3)Fontfamilynameslike'OpenSans'mustbeexact.
What is Autoprefixer and how does it work?
Jul 02, 2025 am 01:15 AM
Autoprefixer is a tool that automatically adds vendor prefixes to CSS attributes based on the target browser scope. 1. It solves the problem of manually maintaining prefixes with errors; 2. Work through the PostCSS plug-in form, parse CSS, analyze attributes that need to be prefixed, and generate code according to configuration; 3. The usage steps include installing plug-ins, setting browserslist, and enabling them in the build process; 4. Notes include not manually adding prefixes, keeping configuration updates, prefixes not all attributes, and it is recommended to use them with the preprocessor.
What are CSS counters?
Jun 19, 2025 am 12:34 AM
CSScounterscanautomaticallynumbersectionsandlists.1)Usecounter-resettoinitialize,counter-incrementtoincrease,andcounter()orcounters()todisplayvalues.2)CombinewithJavaScriptfordynamiccontenttoensureaccurateupdates.
CSS: When Does Case Matter (and When Doesn't)?
Jun 19, 2025 am 12:27 AM
In CSS, selector and attribute names are case-sensitive, while values, named colors, URLs, and custom attributes are case-sensitive. 1. The selector and attribute names are case-insensitive, such as background-color and background-Color are the same. 2. The hexadecimal color in the value is case-sensitive, but the named color is case-sensitive, such as red and Red is invalid. 3. URLs are case sensitive and may cause file loading problems. 4. Custom properties (variables) are case sensitive, and you need to pay attention to the consistency of case when using them.
Case Sensitivity in CSS: Selectors, Properties, and Values Explained
Jun 19, 2025 am 12:38 AM
CSSselectorsandpropertynamesarecase-insensitive,whilevaluescanbecase-sensitivedependingoncontext.1)Selectorslike'div'and'DIV'areequivalent.2)Propertiessuchas'background-color'and'BACKGROUND-COLOR'aretreatedthesame.3)Valueslikecolornamesarecase-insens
