# Tree View

URL: https://ark-ui.com/docs/components/tree-view
Source: https://raw.githubusercontent.com/chakra-ui/ark/refs/heads/main/website/src/content/pages/components/tree-view.mdx

A component that is used to show a tree hierarchy.

---

<ComponentPreview id="TreeView" />

## Anatomy

To set up the tree view component correctly, you'll need to understand its anatomy and how we name its parts.

> Each part includes a `data-part` attribute to help identify them in the DOM.

<Anatomy id="tree-view" />

## Examples

Learn how to use the `TreeView` component in your project. Let's take a look at the most basic example:

<Example id="basic" />

### Controlled Expanded

Pass the `expandedValue` and `onExpandedChange` props to the `TreeView.Root` component to control the expanded state of
the tree view.

<Example id="controlled-expanded" />

### Controlled Selection

Pass the `selectedValue` and `onSelectionChange` props to the `TreeView.Root` component to control the selected state of
the tree view.

<Example id="controlled-selected" />

### Root Provider

Use the `useTreeView` hook to create the tree view store and pass it to the `TreeView.RootProvider` component. This
allows you to have maximum control over the tree view programmatically.

<Example id="root-provider" />

> If you're using the `RootProvider` component, you don't need to use the `Root` component.

### Lazy Loading

Lazy loading is a feature that allows the tree view to load children of a node on demand (or async). This helps to
improve the initial load time and memory usage.

To use this, you need to provide the following:

- `loadChildren` — A function that is used to load the children of a node.
- `onLoadChildrenComplete` — A callback that is called when the children of a node are loaded. Used to update the tree
  collection.
- `childrenCount` — A number that indicates the number of children of a branch node.

<Example id="async-loading" />

### Lazy Mount

Lazy mounting is a feature that allows the content of a tree view to be rendered only when it is expanded. This is
useful for performance optimization, especially when tree content is large or complex. To enable lazy mounting, use the
`lazyMount` prop on the `TreeView.Root` component.

In addition, the `unmountOnExit` prop can be used in conjunction with `lazyMount` to unmount the tree view content when
branches are collapsed, freeing up resources. The next time a branch is expanded, its content will be re-rendered.

<Example id="lazy-mount" />

### Filtering

Filtering is useful when you have a large tree and you want to filter the nodes to only show the ones that match the
search query. Here's an example that composes the `filter` method from the `TreeCollection` and `useFilter` hook to
filter the nodes.

<Example id="filtering" />

### Links

Tree items can be rendered as links to another page or website. This could be useful for documentation sites.

Here's an example that modifies the tree collection to represent an hierarchical link structure. It uses the `asChild`
prop to render the tree items as links, passing the `href` prop to a `<a>` element.

<Example id="links" />

## Guides

### Type-Safety

The `TreeView.RootComponent` type enables you to create closed, strongly typed wrapper components that maintain full type
safety for tree nodes.

This is particularly useful when building reusable tree view components with custom props and consistent styling.

```tsx
import { TreeView as ArkTreeView, type TreeNode } from '@ark-ui/react/tree-view'
import { createTreeCollection } from '@ark-ui/react/collection'

interface TreeViewProps<T extends TreeNode> extends ArkTreeView.RootProps<T> {}

const TreeView: ArkTreeView.RootComponent = (props) => {
  return <ArkTreeView.Root {...props}>{/* ... */}</ArkTreeView.Root>
}
```

Then, you can use the `TreeView` component as follows:

```tsx
const App = () => {
  const collection = createTreeCollection({
    initialItems: [
      { id: '1', label: 'React', children: [] },
      { id: '2', label: 'Vue', children: [] },
      { id: '3', label: 'Svelte', children: [] },
    ],
  })
  return (
    <TreeView
      collection={collection}
      onSelectionChange={(e) => {
        // this will be strongly typed Array<{ id: string, label: string, children: [] }>
        console.log(e.value)
      }}
    >
      {/* ... */}
    </TreeView>
  )
}
```

## API Reference

### Props

**Component API Reference**

#### React

**Root Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `collection` | `TreeCollection<T>` | Yes | The collection of tree nodes |
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `canRename` | `(node: T, indexPath: IndexPath) => boolean` | No | Function to determine if a node can be renamed |
| `checkedValue` | `string[]` | No | The controlled checked node value |
| `defaultCheckedValue` | `string[]` | No | The initial checked node value when rendered.
Use when you don't need to control the checked node value. |
| `defaultExpandedValue` | `string[]` | No | The initial expanded node ids when rendered.
Use when you don't need to control the expanded node value. |
| `defaultFocusedValue` | `string` | No | The initial focused node value when rendered.
Use when you don't need to control the focused node value. |
| `defaultSelectedValue` | `string[]` | No | The initial selected node value when rendered.
Use when you don't need to control the selected node value. |
| `expandedValue` | `string[]` | No | The controlled expanded node ids |
| `expandOnClick` | `boolean` | No | Whether clicking on a branch should open it or not |
| `focusedValue` | `string` | No | The value of the focused node |
| `ids` | `Partial<{ root: string; tree: string; label: string; node: (value: string) => string }>` | No | The ids of the tree elements. Useful for composition. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `loadChildren` | `(details: LoadChildrenDetails<T>) => Promise<T[]>` | No | Function to load children for a node asynchronously.
When provided, branches will wait for this promise to resolve before expanding. |
| `onBeforeRename` | `(details: RenameCompleteDetails) => boolean` | No | Called before a rename is completed. Return false to prevent the rename. |
| `onCheckedChange` | `(details: CheckedChangeDetails) => void` | No | Called when the checked value changes |
| `onExpandedChange` | `(details: ExpandedChangeDetails<T>) => void` | No | Called when the tree is opened or closed |
| `onFocusChange` | `(details: FocusChangeDetails<T>) => void` | No | Called when the focused node changes |
| `onLoadChildrenComplete` | `(details: LoadChildrenCompleteDetails<T>) => void` | No | Called when a node finishes loading children |
| `onLoadChildrenError` | `(details: LoadChildrenErrorDetails<T>) => void` | No | Called when loading children fails for one or more nodes |
| `onRenameComplete` | `(details: RenameCompleteDetails) => void` | No | Called when a node label rename is completed |
| `onRenameStart` | `(details: RenameStartDetails<T>) => void` | No | Called when a node starts being renamed |
| `onSelectionChange` | `(details: SelectionChangeDetails<T>) => void` | No | Called when the selection changes |
| `selectedValue` | `string[]` | No | The controlled selected node value |
| `selectionMode` | `'multiple' | 'single'` | No | Whether the tree supports multiple selection
- "single": only one node can be selected
- "multiple": multiple nodes can be selected |
| `typeahead` | `boolean` | No | Whether the tree supports typeahead search |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**BranchContent Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchContent Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-content |
| `[data-state]` | "open" | "closed" |
| `[data-depth]` | The depth of the item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |


**BranchControl Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchControl Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-control |
| `[data-path]` | The path of the item |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-renaming]` |  |
| `[data-value]` | The value of the item |
| `[data-depth]` | The depth of the item |
| `[data-loading]` | Present when loading |


**BranchIndentGuide Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndentGuide Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indent-guide |
| `[data-depth]` | The depth of the item |


**BranchIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indicator |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-loading]` | Present when loading |


**Branch Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Branch Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch |
| `[data-depth]` | The depth of the item |
| `[data-branch]` |  |
| `[data-value]` | The value of the item |
| `[data-path]` | The path of the item |
| `[data-selected]` | Present when selected |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-loading]` | Present when loading |


**BranchText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-text |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-loading]` | Present when loading |


**BranchTrigger Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchTrigger Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-trigger |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-value]` | The value of the item |
| `[data-loading]` | Present when loading |


**ItemIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-indicator |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Item Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Item Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |
| `[data-focus]` | Present when focused |
| `[data-selected]` | Present when selected |
| `[data-disabled]` | Present when disabled |
| `[data-renaming]` |  |
| `[data-depth]` | The depth of the item |


**ItemText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-text |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Label Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckboxIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `fallback` | `string | number | bigint | boolean | ReactElement<unknown, string | JSXElementConstructor<any>> | Iterable<ReactNode> | ReactPortal | Promise<...>` | No |  |
| `indeterminate` | `string | number | bigint | boolean | ReactElement<unknown, string | JSXElementConstructor<any>> | Iterable<ReactNode> | ReactPortal | Promise<...>` | No |  |


**NodeCheckbox Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckbox Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | node-checkbox |
| `[data-state]` | "checked" | "unchecked" | "indeterminate" |
| `[data-disabled]` | Present when disabled |


**NodeProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `indexPath` | `number[]` | Yes | The index path of the tree node |
| `node` | `NonNullable<T>` | No | The tree node |


**NodeRenameInput Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**RootProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `value` | `UseTreeViewReturn<T>` | Yes |  |
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**Tree Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


#### Solid

**Root Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `collection` | `TreeCollection<T>` | Yes | The collection of tree nodes |
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `canRename` | `(node: any, indexPath: IndexPath) => boolean` | No | Function to determine if a node can be renamed |
| `checkedValue` | `string[]` | No | The controlled checked node value |
| `defaultCheckedValue` | `string[]` | No | The initial checked node value when rendered.
Use when you don't need to control the checked node value. |
| `defaultExpandedValue` | `string[]` | No | The initial expanded node ids when rendered.
Use when you don't need to control the expanded node value. |
| `defaultFocusedValue` | `string` | No | The initial focused node value when rendered.
Use when you don't need to control the focused node value. |
| `defaultSelectedValue` | `string[]` | No | The initial selected node value when rendered.
Use when you don't need to control the selected node value. |
| `expandedValue` | `string[]` | No | The controlled expanded node ids |
| `expandOnClick` | `boolean` | No | Whether clicking on a branch should open it or not |
| `focusedValue` | `string` | No | The value of the focused node |
| `id` | `string` | No | The unique identifier of the machine. |
| `ids` | `Partial<{ root: string; tree: string; label: string; node: (value: string) => string }>` | No | The ids of the tree elements. Useful for composition. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `loadChildren` | `(details: LoadChildrenDetails<any>) => Promise<any[]>` | No | Function to load children for a node asynchronously.
When provided, branches will wait for this promise to resolve before expanding. |
| `onBeforeRename` | `(details: RenameCompleteDetails) => boolean` | No | Called before a rename is completed. Return false to prevent the rename. |
| `onCheckedChange` | `(details: CheckedChangeDetails) => void` | No | Called when the checked value changes |
| `onExpandedChange` | `(details: ExpandedChangeDetails<any>) => void` | No | Called when the tree is opened or closed |
| `onFocusChange` | `(details: FocusChangeDetails<any>) => void` | No | Called when the focused node changes |
| `onLoadChildrenComplete` | `(details: LoadChildrenCompleteDetails<any>) => void` | No | Called when a node finishes loading children |
| `onLoadChildrenError` | `(details: LoadChildrenErrorDetails<any>) => void` | No | Called when loading children fails for one or more nodes |
| `onRenameComplete` | `(details: RenameCompleteDetails) => void` | No | Called when a node label rename is completed |
| `onRenameStart` | `(details: RenameStartDetails<any>) => void` | No | Called when a node starts being renamed |
| `onSelectionChange` | `(details: SelectionChangeDetails<any>) => void` | No | Called when the selection changes |
| `selectedValue` | `string[]` | No | The controlled selected node value |
| `selectionMode` | `'multiple' | 'single'` | No | Whether the tree supports multiple selection
- "single": only one node can be selected
- "multiple": multiple nodes can be selected |
| `typeahead` | `boolean` | No | Whether the tree supports typeahead search |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**BranchContent Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchContent Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-content |
| `[data-state]` | "open" | "closed" |
| `[data-depth]` | The depth of the item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |


**BranchControl Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchControl Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-control |
| `[data-path]` | The path of the item |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-renaming]` |  |
| `[data-value]` | The value of the item |
| `[data-depth]` | The depth of the item |
| `[data-loading]` | Present when loading |


**BranchIndentGuide Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndentGuide Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indent-guide |
| `[data-depth]` | The depth of the item |


**BranchIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indicator |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-loading]` | Present when loading |


**Branch Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Branch Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch |
| `[data-depth]` | The depth of the item |
| `[data-branch]` |  |
| `[data-value]` | The value of the item |
| `[data-path]` | The path of the item |
| `[data-selected]` | Present when selected |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-loading]` | Present when loading |


**BranchText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'span'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-text |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-loading]` | Present when loading |


**BranchTrigger Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchTrigger Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-trigger |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-value]` | The value of the item |
| `[data-loading]` | Present when loading |


**ItemIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-indicator |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Item Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Item Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |
| `[data-focus]` | Present when focused |
| `[data-selected]` | Present when selected |
| `[data-disabled]` | Present when disabled |
| `[data-renaming]` |  |
| `[data-depth]` | The depth of the item |


**ItemText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'span'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-text |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Label Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'h3'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckboxIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `fallback` | `number | boolean | Node | (string & {}) | ArrayElement` | No |  |
| `indeterminate` | `number | boolean | Node | (string & {}) | ArrayElement` | No |  |


**NodeCheckbox Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'span'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckbox Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | node-checkbox |
| `[data-state]` | "checked" | "unchecked" | "indeterminate" |
| `[data-disabled]` | Present when disabled |


**NodeProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `indexPath` | `number[]` | Yes | The index path of the tree node |
| `node` | `NonNullable<T>` | No | The tree node |


**NodeRenameInput Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'input'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**RootProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `value` | `UseTreeViewReturn<T>` | Yes |  |
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**Tree Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `(props: ParentProps<'div'>) => Element` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


#### Vue

**Root Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `collection` | `TreeCollection<T>` | Yes | The collection of tree nodes |
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `canRename` | `(node: T, indexPath: number[]) => boolean` | No | Function to determine if a node can be renamed |
| `checkedValue` | `string[]` | No | The controlled checked node values |
| `defaultCheckedValue` | `string[]` | No | The initial checked node values when rendered.
Use when you don't need to control the checked node values. |
| `defaultExpandedValue` | `string[]` | No | The initial expanded node values when rendered.
Use when you don't need to control the expanded node values. |
| `defaultFocusedValue` | `string` | No | The initial focused node value when rendered.
Use when you don't need to control the focused node value. |
| `defaultSelectedValue` | `string[]` | No | The initial selected node values when rendered.
Use when you don't need to control the selected node values. |
| `expandedValue` | `string[]` | No | The controlled expanded node values |
| `expandOnClick` | `boolean` | No | Whether clicking on a branch should open it or not |
| `focusedValue` | `string` | No | The id of the focused node |
| `id` | `string` | No | The unique identifier of the machine. |
| `ids` | `Partial<{ root: string; tree: string; label: string; node(value: string): string }>` | No | The ids of the tree elements. Useful for composition. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `loadChildren` | `(details: LoadChildrenDetails<T>) => Promise<T[]>` | No | A function that loads the children of a node. |
| `selectedValue` | `string[]` | No | The controlled selected node values |
| `selectionMode` | `'single' | 'multiple'` | No | Whether the tree supports multiple selection
- "single": only one node can be selected
- "multiple": multiple nodes can be selected |
| `typeahead` | `boolean` | No | Whether the tree supports typeahead search |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**BranchContent Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchContent Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-content |
| `[data-state]` | "open" | "closed" |
| `[data-depth]` | The depth of the item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |


**BranchControl Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchControl Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-control |
| `[data-path]` | The path of the item |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-renaming]` |  |
| `[data-value]` | The value of the item |
| `[data-depth]` | The depth of the item |
| `[data-loading]` | Present when loading |


**BranchIndentGuide Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndentGuide Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indent-guide |
| `[data-depth]` | The depth of the item |


**BranchIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indicator |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-loading]` | Present when loading |


**Branch Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Branch Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch |
| `[data-depth]` | The depth of the item |
| `[data-branch]` |  |
| `[data-value]` | The value of the item |
| `[data-path]` | The path of the item |
| `[data-selected]` | Present when selected |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-loading]` | Present when loading |


**BranchText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-text |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-loading]` | Present when loading |


**BranchTrigger Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**BranchTrigger Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-trigger |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-value]` | The value of the item |
| `[data-loading]` | Present when loading |


**ItemIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-indicator |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Item Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**Item Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |
| `[data-focus]` | Present when focused |
| `[data-selected]` | Present when selected |
| `[data-disabled]` | Present when disabled |
| `[data-renaming]` |  |
| `[data-depth]` | The depth of the item |


**ItemText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**ItemText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-text |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Label Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckboxIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `fallback` | `{}` | No |  |
| `indeterminate` | `{}` | No |  |


**NodeCheckbox Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**NodeCheckbox Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | node-checkbox |
| `[data-state]` | "checked" | "unchecked" | "indeterminate" |
| `[data-disabled]` | Present when disabled |


**NodeProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `indexPath` | `number[]` | Yes | The index path of the tree node |
| `node` | `NonNullable<T>` | No | The tree node |


**NodeRenameInput Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


**RootProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `value` | `TreeViewApi<PropTypes, T>` | Yes |  |
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**Tree Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `boolean` | No | Use the provided child element as the default rendered element, combining their props and behavior. |


#### Svelte

**Root Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `canRename` | `(node: T, indexPath: IndexPath) => boolean` | No | Function to determine if a node can be renamed |
| `checkedValue` | `string[]` | No | The controlled checked node value |
| `collection` | `TreeCollection<T>` | No | The tree collection data |
| `defaultCheckedValue` | `string[]` | No | The initial checked node value when rendered.
Use when you don't need to control the checked node value. |
| `defaultExpandedValue` | `string[]` | No | The initial expanded node ids when rendered.
Use when you don't need to control the expanded node value. |
| `defaultFocusedValue` | `string` | No | The initial focused node value when rendered.
Use when you don't need to control the focused node value. |
| `defaultSelectedValue` | `string[]` | No | The initial selected node value when rendered.
Use when you don't need to control the selected node value. |
| `expandedValue` | `string[]` | No | The controlled expanded node ids |
| `expandOnClick` | `boolean` | No | Whether clicking on a branch should open it or not |
| `focusedValue` | `string` | No | The value of the focused node |
| `id` | `string` | No | The unique identifier of the machine. |
| `ids` | `Partial<{ root: string; tree: string; label: string; node: (value: string) => string }>` | No | The ids of the tree elements. Useful for composition. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `loadChildren` | `(details: LoadChildrenDetails<T>) => Promise<T[]>` | No | Function to load children for a node asynchronously.
When provided, branches will wait for this promise to resolve before expanding. |
| `onBeforeRename` | `(details: RenameCompleteDetails) => boolean` | No | Called before a rename is completed. Return false to prevent the rename. |
| `onCheckedChange` | `(details: CheckedChangeDetails) => void` | No | Called when the checked value changes |
| `onExpandedChange` | `(details: ExpandedChangeDetails<T>) => void` | No | Called when the tree is opened or closed |
| `onFocusChange` | `(details: FocusChangeDetails<T>) => void` | No | Called when the focused node changes |
| `onLoadChildrenComplete` | `(details: LoadChildrenCompleteDetails<T>) => void` | No | Called when a node finishes loading children |
| `onLoadChildrenError` | `(details: LoadChildrenErrorDetails<T>) => void` | No | Called when loading children fails for one or more nodes |
| `onRenameComplete` | `(details: RenameCompleteDetails) => void` | No | Called when a node label rename is completed |
| `onRenameStart` | `(details: RenameStartDetails<T>) => void` | No | Called when a node starts being renamed |
| `onSelectionChange` | `(details: SelectionChangeDetails<T>) => void` | No | Called when the selection changes |
| `ref` | `Element` | No |  |
| `selectedValue` | `string[]` | No | The controlled selected node value |
| `selectionMode` | `'multiple' | 'single'` | No | Whether the tree supports multiple selection
- "single": only one node can be selected
- "multiple": multiple nodes can be selected |
| `typeahead` | `boolean` | No | Whether the tree supports typeahead search |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**BranchContent Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'ul'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchContent Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-content |
| `[data-state]` | "open" | "closed" |
| `[data-depth]` | The depth of the item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |


**BranchControl Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchControl Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-control |
| `[data-path]` | The path of the item |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-renaming]` |  |
| `[data-value]` | The value of the item |
| `[data-depth]` | The depth of the item |
| `[data-loading]` | Present when loading |


**BranchIndentGuide Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchIndentGuide Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indent-guide |
| `[data-depth]` | The depth of the item |


**BranchIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-indicator |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |
| `[data-loading]` | Present when loading |


**Branch Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'li'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**Branch Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch |
| `[data-depth]` | The depth of the item |
| `[data-branch]` |  |
| `[data-value]` | The value of the item |
| `[data-path]` | The path of the item |
| `[data-selected]` | Present when selected |
| `[data-state]` | "open" | "closed" |
| `[data-disabled]` | Present when disabled |
| `[data-loading]` | Present when loading |


**BranchText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'span'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-text |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-loading]` | Present when loading |


**BranchTrigger Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'button'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**BranchTrigger Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | branch-trigger |
| `[data-disabled]` | Present when disabled |
| `[data-state]` | "open" | "closed" |
| `[data-value]` | The value of the item |
| `[data-loading]` | Present when loading |


**Context Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `render` | `Snippet<[UseTreeViewContext<any>]>` | Yes |  |


**ItemIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**ItemIndicator Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-indicator |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Item Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'li'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**Item Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item |
| `[data-path]` | The path of the item |
| `[data-value]` | The value of the item |
| `[data-focus]` | Present when focused |
| `[data-selected]` | Present when selected |
| `[data-disabled]` | Present when disabled |
| `[data-renaming]` |  |
| `[data-depth]` | The depth of the item |


**ItemText Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'span'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**ItemText Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | item-text |
| `[data-disabled]` | Present when disabled |
| `[data-selected]` | Present when selected |
| `[data-focus]` | Present when focused |


**Label Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'h3'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**NodeCheckboxIndicator Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `fallback` | `Snippet<[]>` | No |  |
| `indeterminate` | `Snippet<[]>` | No |  |


**NodeCheckbox Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'span'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**NodeCheckbox Data Attributes:**

| Attribute | Value |
|-----------|-------|
| `[data-scope]` | tree-view |
| `[data-part]` | node-checkbox |
| `[data-state]` | "checked" | "unchecked" | "indeterminate" |
| `[data-disabled]` | Present when disabled |


**NodeContext Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `render` | `Snippet<[UseTreeViewNodeContext]>` | Yes |  |


**NodeProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `indexPath` | `number[]` | Yes |  |
| `node` | `NonNullable<T>` | No |  |


**NodeRenameInput Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'input'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


**RootProvider Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `value` | `UseTreeViewReturn<T>` | Yes |  |
| `asChild` | `Snippet<[PropsFn<'div'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `lazyMount` | `boolean` | No | Whether to enable lazy mounting |
| `ref` | `Element` | No |  |
| `unmountOnExit` | `boolean` | No | Whether to unmount on exit. |


**Tree Props:**

| Prop | Type | Required | Description |
|------|------|----------|-------------|
| `asChild` | `Snippet<[PropsFn<'ul'>]>` | No | Use the provided child element as the default rendered element, combining their props and behavior. |
| `ref` | `Element` | No |  |


### Context

These are the properties available when using `UtreeUview.Context`, `useUtreeUviewContext` hook or `useUtreeUview` hook.

**API:**

| Property | Type | Description |
|----------|------|-------------|
| `collection` | `TreeCollection<V>` | The tree collection data |
| `expandedValue` | `string[]` | The value of the expanded nodes. |
| `setExpandedValue` | `(value: string[]) => void` | Sets the expanded value |
| `selectedValue` | `string[]` | The value of the selected nodes. |
| `setSelectedValue` | `(value: string[]) => void` | Sets the selected value |
| `checkedValue` | `string[]` | The value of the checked nodes |
| `toggleChecked` | `(value: string, isBranch: boolean) => void` | Toggles the checked value of a node |
| `setChecked` | `(value: string[]) => void` | Sets the checked value of a node |
| `clearChecked` | `VoidFunction` | Clears the checked value of a node |
| `getCheckedMap` | `() => CheckedValueMap` | Returns the checked details of branch and leaf nodes |
| `getVisibleNodes` | `() => V[]` | Returns the visible nodes as a flat array of nodes and their index path |
| `expand` | `(value?: string[]) => void` | Function to expand nodes.
If no value is provided, all nodes will be expanded |
| `collapse` | `(value?: string[]) => void` | Function to collapse nodes
If no value is provided, all nodes will be collapsed |
| `select` | `(value?: string[]) => void` | Function to select nodes
If no value is provided, all nodes will be selected |
| `deselect` | `(value?: string[]) => void` | Function to deselect nodes
If no value is provided, all nodes will be deselected |
| `focus` | `(value: string) => void` | Function to focus a node by value |
| `selectParent` | `(value: string) => void` | Function to select the parent node of the focused node |
| `expandParent` | `(value: string) => void` | Function to expand the parent node of the focused node |
| `startRenaming` | `(value: string) => void` | Function to start renaming a node by value |
| `submitRenaming` | `(value: string, label: string) => void` | Function to submit the rename and update the node label |
| `cancelRenaming` | `() => void` | Function to cancel renaming without changes |


## Accessibility

Complies with the [Tree View WAI-ARIA design pattern](https://www.w3.org/WAI/ARIA/apg/patterns/treeview/).

### Keyboard Support

<KeyBindingsTable id="tree-view" />