Data

TreeView

Collapsible tree structure for hierarchical data navigation.

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Installation

npm install lucide-react

// Copy from
src/components/data/TreeView.tsx

Examples

Selectable tree

Prompt Preview

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Starts from the current visual reference and project constraints.

Build a data component named TreeView in React/Next.js.
Goal: recreate the same overall UI and behavior as the TreeView reference from a component gallery.
What it needs to communicate: Collapsible tree structure for hierarchical data navigation..

Project constraints:
- Use Next.js 16.2.6 with the App Router, React 19, TypeScript strict mode, and Tailwind CSS v4.
- Do not create a tailwind.config.js file. Use Tailwind v4 utilities and CSS variables where design tokens are needed.
- If you are implementing this inside the same project, use the Prompt font via next/font/google. If not, use the closest equivalent typeface.
- Return production-ready code with imports, responsive behavior, keyboard accessibility, and polished empty, hover, focus, active, and disabled states where relevant.
- Match the reference closely: color palette, spacing scale, border radius, shadows, icon scale, typography hierarchy, and motion timing.

Component-specific expectations:
- Make data density readable with crisp spacing, hierarchy, and state styling.
- Use accessible labels, legends, and semantic structure when needed.
- Avoid unnecessary dependencies unless the behavior truly requires them.
- No explicit color literals were found in the examples. Match the live reference and the project accent color when appropriate.

Props to support:
- nodes: TreeNode[] — required — Root-level tree nodes
- defaultExpanded: (string | number)[] — default [] — IDs of nodes expanded by default
- selectedId: string | number — Currently selected node ID
- onSelect: (node: TreeNode) => void — Selection callback
- className: string — Additional CSS classes

Reference usage patterns:
- No examples were documented. Infer a sensible default presentation and one richer usage example.

Feature expectations:
- Infinite nesting
- Controlled selection
- Custom icons
- Keyboard accessible

Output requirements:
- Return complete code, not pseudocode.
- Include all necessary imports and helper types.
- Keep the implementation accessible, responsive, and visually finished.
- Match the reference for color, size, shape, typography, spacing, and interaction states as closely as possible.
- If multiple files are needed, organize them cleanly and explain the file structure briefly.

Tweak only product-specific copy or data after the first generation pass.

Props

Prop	Type	Default	Description
`nodes`*	`TreeNode[]`	-	Root-level tree nodes
`defaultExpanded`	`(string \| number)[]`	`[]`	IDs of nodes expanded by default
`selectedId`	`string \| number`	-	Currently selected node ID
`onSelect`	`(node: TreeNode) => void`	-	Selection callback
`className`	`string`	-	Additional CSS classes