ant-design/components/tree-select/index.en-US.md
Wanpan 4020f658a8
docs: tree-select supports onPopupScroll (#48636)
* docs: tree-select supports onPopupScroll props

* docs: update demo

* docs: update version

* test: update snapshots

* fix: update demo

---------

Co-authored-by: lijianan <574980606@qq.com>
2024-04-28 13:44:01 +08:00

148 lines
9.7 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
category: Components
group: Data Entry
title: TreeSelect
description: Tree selection control.
cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*1zcHQLltaJcAAAAAAAAAAAAADrJ8AQ/original
coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*hjwGSIa4J8QAAAAAAAAAAAAADrJ8AQ/original
demo:
cols: 2
---
## When To Use
`TreeSelect` is similar to `Select`, but the values are provided in a tree like structure. Any data whose entries are defined in a hierarchical manner is fit to use this control. Examples of such case may include a corporate hierarchy, a directory structure, and so on.
## Examples
<!-- prettier-ignore -->
<code src="./demo/basic.tsx">Basic</code>
<code src="./demo/multiple.tsx">Multiple Selection</code>
<code src="./demo/treeData.tsx">Generate from tree data</code>
<code src="./demo/checkable.tsx">Checkable</code>
<code src="./demo/async.tsx">Asynchronous loading</code>
<code src="./demo/treeLine.tsx">Show Tree Line</code>
<code src="./demo/placement.tsx">Placement</code>
<code src="./demo/status.tsx">Status</code>
<code src="./demo/suffix.tsx" debug>Suffix</code>
<code src="./demo/render-panel.tsx" debug>_InternalPanelDoNotUseOrYouWillBeFired</code>
<code src="./demo/component-token.tsx" debug>Component Token</code>
## API
Common props ref[Common props](/docs/react/common-props)
### Tree props
| Property | Description | Type | Default | Version |
| --- | --- | --- | --- | --- |
| allowClear | Customize clear icon | boolean \| { clearIcon?: ReactNode } | false | 5.8.0: Support object type |
| autoClearSearchValue | If auto clear search input value when multiple select is selected/deselected | boolean | true | |
| defaultValue | To set the initial selected treeNode(s) | string \| string\[] | - | |
| disabled | Disabled or not | boolean | false | |
| popupClassName | The className of dropdown menu | string | - | 4.23.0 |
| popupMatchSelectWidth | Determine whether the popup menu and the select input are the same width. Default set `min-width` same as input. Will ignore when value less than select width. `false` will disable virtual scroll | boolean \| number | true | 5.5.0 |
| dropdownRender | Customize dropdown content | (originNode: ReactNode, props) => ReactNode | - | |
| dropdownStyle | To set the style of the dropdown menu | CSSProperties | - | |
| fieldNames | Customize node label, value, children field name | object | { label: `label`, value: `value`, children: `children` } | 4.17.0 |
| filterTreeNode | Whether to filter treeNodes by input value. The value of `treeNodeFilterProp` is used for filtering by default | boolean \| function(inputValue: string, treeNode: TreeNode) (should return boolean) | function | |
| getPopupContainer | To set the container of the dropdown menu. The default is to create a `div` element in `body`, you can reset it to the scrolling area and make a relative reposition. [example](https://codepen.io/afc163/pen/zEjNOy?editors=0010) | function(triggerNode) | () => document.body | |
| labelInValue | Whether to embed label in value, turn the format of value from `string` to {value: string, label: ReactNode, halfChecked: string\[]} | boolean | false | |
| listHeight | Config popup height | number | 256 | |
| loadData | Load data asynchronously. Will not load when filtering. Check FAQ for more info | function(node) | - | |
| maxTagCount | Max tag count to show. `responsive` will cost render performance | number \| `responsive` | - | responsive: 4.10 |
| maxTagPlaceholder | Placeholder for not showing tags | ReactNode \| function(omittedValues) | - | |
| maxTagTextLength | Max tag text length to show | number | - | |
| multiple | Support multiple or not, will be `true` when enable `treeCheckable` | boolean | false | |
| notFoundContent | Specify content to show when no result matches | ReactNode | `Not Found` | |
| placeholder | Placeholder of the select input | string | - | |
| placement | The position where the selection box pops up | `bottomLeft` `bottomRight` `topLeft` `topRight` | bottomLeft | |
| searchValue | Work with `onSearch` to make search value controlled | string | - | |
| showCheckedStrategy | The way show selected item in box when `treeCheckable` set. **Default:** just show child nodes. **`TreeSelect.SHOW_ALL`:** show all checked treeNodes (include parent treeNode). **`TreeSelect.SHOW_PARENT`:** show checked treeNodes (just show parent treeNode) | `TreeSelect.SHOW_ALL` \| `TreeSelect.SHOW_PARENT` \| `TreeSelect.SHOW_CHILD` | `TreeSelect.SHOW_CHILD` | |
| showSearch | Support search or not | boolean | single: false \| multiple: true | |
| size | To set the size of the select input | `large` \| `middle` \| `small` | - | |
| status | Set validation status | 'error' \| 'warning' | - | 4.19.0 |
| suffixIcon | The custom suffix icon | ReactNode | `<DownOutlined />` | |
| switcherIcon | Customize collapse/expand icon of tree node | ReactNode \| ((props: AntTreeNodeProps) => ReactNode) | - | renderProps: 4.20.0 |
| tagRender | Customize tag render when `multiple` | (props) => ReactNode | - | |
| treeCheckable | Whether to show checkbox on the treeNodes | boolean | false | |
| treeCheckStrictly | Whether to check nodes precisely (in the `checkable` mode), means parent and child nodes are not associated, and it will make `labelInValue` be true | boolean | false | |
| treeData | Data of the treeNodes, manual construction work is no longer needed if this property has been set(ensure the Uniqueness of each value) | array&lt;{ value, title, children, \[disabled, disableCheckbox, selectable, checkable] }> | \[] | |
| treeDataSimpleMode | Enable simple mode of treeData. Changes the `treeData` schema to: \[{id:1, pId:0, value:'1', title:"test1",...},...] where pId is parent node's id). It is possible to replace the default `id` and `pId` keys by providing object to `treeDataSimpleMode` | boolean \| object&lt;{ id: string, pId: string, rootPId: string }> | false | |
| treeDefaultExpandAll | Whether to expand all treeNodes by default | boolean | false | |
| treeDefaultExpandedKeys | Default expanded treeNodes | string\[] | - | |
| treeExpandAction | Tree title open logic when click, optional: false \| `click` \| `doubleClick` | string \| boolean | false | 4.21.0 |
| treeExpandedKeys | Set expanded keys | string\[] | - | |
| treeIcon | Shows the icon before a TreeNode's title. There is no default style; you must set a custom style for it if set to `true` | boolean | false | |
| treeLoadedKeys | (Controlled) Set loaded tree nodes, work with `loadData` only | string[] | [] | |
| treeLine | Show the line. Ref [Tree - showLine](/components/tree/#components-tree-demo-line) | boolean \| object | false | 4.17.0 |
| treeNodeFilterProp | Will be used for filtering if `filterTreeNode` returns true | string | `value` | |
| treeNodeLabelProp | Will render as content of select | string | `title` | |
| value | To set the current selected treeNode(s) | string \| string\[] | - | |
| variant | Variants of selector | `outlined` \| `borderless` \| `filled` | `outlined` | 5.13.0 |
| virtual | Disable virtual scroll when set to false | boolean | true | 4.1.0 |
| onChange | A callback function, can be executed when selected treeNodes or input value change | function(value, label, extra) | - | |
| onDropdownVisibleChange | Called when dropdown open | function(open) | - | |
| onSearch | A callback function, can be executed when the search input changes | function(value: string) | - | |
| onSelect | A callback function, can be executed when you select a treeNode | function(value, node, extra) | - | |
| onTreeExpand | A callback function, can be executed when treeNode expanded | function(expandedKeys) | - | |
| onPopupScroll | Called when dropdown scrolls | (event: MouseEvent) => void | - | 5.17.0 |
### Tree Methods
| Name | Description | Version |
| ------- | ------------ | ------- |
| blur() | Remove focus | |
| focus() | Get focus | |
### TreeNode props
> We recommend you to use `treeData` rather than `TreeNode`, to avoid the trouble of manual construction.
| Property | Description | Type | Default | Version |
| --- | --- | --- | --- | --- |
| checkable | When Tree is checkable, set TreeNode display Checkbox or not | boolean | - | |
| disableCheckbox | Disables the checkbox of the treeNode | boolean | false | |
| disabled | Disabled or not | boolean | false | |
| isLeaf | Leaf node or not | boolean | false | |
| key | Required property (unless using `treeDataSimpleMode`), should be unique in the tree | string | - | |
| selectable | Whether can be selected | boolean | true | |
| title | Content showed on the treeNodes | ReactNode | `---` | |
| value | Will be treated as `treeNodeFilterProp` by default, should be unique in the tree | string | - | |
## Design Token
<ComponentTokenTable component="TreeSelect"></ComponentTokenTable>
## FAQ
### How to get parent node in onChange?
We don't provide this since performance consideration. You can get by this way: <https://codesandbox.io/s/get-parent-node-in-onchange-eb1608>
### Why sometime customize Option cause scroll break?
You can ref Select [FAQ](/components/select).
### Why `loadData` not trigger when searching?
In earlier version, `loadData` will be triggered when searching. But we got feedback that it will block network when inputting. So we change it to not trigger `loadData` when searching. But you can still handle async logic by `filterTreeNode`:
```tsx
<TreeSelect
filterTreeNode={(input, treeNode) => {
const match = YOUR_LOGIC_HERE;
if (match && !treeNode.isLeaf && !treeNode.children) {
// Do some loading logic
}
return match;
}}
/>
```
### Why can't popup scroll horizontally?
Just turn off virtual scrolling, because the `scrollWidth` of the complete list cannot be accurately measured when virtual scrolling is turned on.