LWC: Reusable Dynamic Tabs

🗂️ Dynamic Tabs – Reusable Salesforce LWC Component

A production-ready Lightning Web Component that delivers fully accessible, highly configurable dynamic tabs with lazy loading, badge counts, SLDS icons, keyboard navigation, and closeable tabs—all built using native Salesforce Lightning Web Components.

📖 Project Overview

Dynamic Tabs is a reusable Lightning Web Component designed for modern Salesforce applications that require rich tabbed navigation while maintaining excellent performance and accessibility.

Unlike traditional tab implementations that render every panel immediately, this component supports lazy loading, meaning tab content is rendered only when a user opens it for the first time. After the initial load, content is simply shown or hidden without unnecessary re-rendering.

The component also includes badge counters, SLDS icons, closeable tabs, multiple layout variants, keyboard accessibility, and a clean public API that makes it easy to integrate into enterprise Salesforce applications.

🔗 View Source Code ⬇ Download ZIP

✨ Features

Feature	Description
Lazy Loading	Tab content loads only when activated for the first time.
Badge Counts	Displays per-tab counters with automatic 99+ overflow handling.
SLDS Icons	Supports any Salesforce Lightning icon beside the tab label.
Closeable Tabs	Optional close button with custom tabclose event.
Keyboard Navigation	Supports Left, Right, Home and End keyboard shortcuts.
Accessibility	ARIA-compliant implementation using tablist, tab and tabpanel roles.
Multiple Variants	Supports Default, Scoped and Vertical SLDS tab layouts.
Programmatic API	Switch tabs and update badge counts directly from JavaScript.
Reusable Design	Can be embedded into any Lightning page or custom component.

🏗 Component Architecture

📁 Project Structure

force-app/
└── main/
    └── default/
        └── lwc/
            ├── dynamicTabs/
            │   ├── dynamicTabs.html
            │   ├── dynamicTabs.js
            │   ├── dynamicTabs.css
            │   └── dynamicTabs.js-meta.xml
            │
            ├── dynamicTabPanel/
            │   ├── dynamicTabPanel.html
            │   ├── dynamicTabPanel.js
            │   └── dynamicTabPanel.css
            │
            └── dynamicTabsDemo/

⚙️ Public API

Property / Method	Purpose
variant	Choose default, scoped, or vertical layout.
defaultTab	Automatically activate a tab on initial render.
switchTab()	Programmatically activate any tab.
updateBadge()	Update badge counts dynamically.
activeTab	Returns the currently active tab.

🔄 Component Workflow

Page Loads
     │
     ▼
Render Tab Navigation
     │
     ▼
Activate Default Tab
     │
     ▼
Lazy Load Panel
     │
     ▼
User Switches Tabs
     │
     ▼
Previously Loaded?
     │
 ┌───┴────┐
 │        │
Yes      No
 │        │
 ▼        ▼
Show     Render Once
Content   Then Cache

⌨️ Keyboard Accessibility

• ← Move to previous tab
• → Move to next tab
• Home jumps to the first tab
• End jumps to the last tab
• Fully ARIA-compliant tab navigation
• Screen reader friendly implementation

🎨 Supported Variants

Variant	Description
Default	Standard Salesforce horizontal tabs.
Scoped	SLDS scoped tab style.
Vertical	Vertical navigation for dashboards and setup pages.

🚀 Deployment

sf org login web --alias myOrg

sf project deploy start \
--source-dir force-app \
--target-org myOrg

🎯 Business Use Cases

• Account & Contact workspaces
• Customer Service Consoles
• Sales dashboards
• Experience Cloud portals
• Admin configuration pages
• Record detail workspaces
• Multi-step business applications
• Reusable enterprise component libraries

🔗 View Source Code ⬇ Download ZIP

📌 Conclusion

The Dynamic Tabs component provides a powerful, enterprise-ready tab navigation experience for Salesforce applications. With lazy loading, badge counters, SLDS integration, keyboard accessibility, multiple layout variants, and a clean programmatic API, it enables developers to build scalable, high-performance Lightning applications while delivering an excellent user experience.