🗂️ 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.
✨ 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
📌 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.


