<fluent-tree-item>

The Fluent Tree Item Element. Implements @microsoft/fast-foundation#BaseTreeItem.

Category

Navigation

Built with

FAST

Library

Fluent UI

Author

Microsoft

Package

@fluentui/web-components

Component size

2.8 kB JS (minified + gzipped, JS includes dependencies beyond the library)

Library size

23.5 kB JS (shared by every Fluent UI component, loaded once per page)

Popular

3 out of 5

Downloads

52,120/week · jsDelivr 281,083 hits/month (whole @fluentui/web-components package)

GitHub stars

20,298

Latest stable version

3.1.3

Last published

Aug 25, 2026

Component last changed

Aug 5, 2026 (in 3.0.3)

License

MIT

• Documentation
• Source code

• Source code

Attributes

• size
• appearance
• expanded
• selected
• empty

Slots

• start
• end
• aside
• item

Events

• toggle
• change

CSS Parts

• positioning-region
• content
• chevron
• aside
• items