--- category: Components type: Data Entry title: TreeSelect cover: https://gw.alipayobjects.com/zos/alicdn/Ax4DA0njr/TreeSelect.svg --- Tree selection control. ## 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. ## API ### Tree props | Property | Description | Type | Default | Version | | --- | --- | --- | --- | --- | | allowClear | Whether allow clear | boolean | false | | | autoClearSearchValue | If auto clear search input value when multiple select is selected/deselected | boolean | true | | | bordered | Whether has border style | boolean | true | | | defaultValue | To set the initial selected treeNode(s) | string \| string\[] | - | | | disabled | Disabled or not | boolean | false | | | dropdownClassName | The className of dropdown menu | string | - | | | dropdownMatchSelectWidth | Determine whether the dropdown 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 | | | dropdownRender | Customize dropdown content | (originNode: ReactNode, props) => ReactNode | - | | | dropdownStyle | To set the style of the dropdown menu | CSSProperties | - | | | 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 | 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) | - | | | multiple | Support multiple or not, will be `true` when enable `treeCheckable` | boolean | false | | | placeholder | Placeholder of the select input | string | - | | | searchValue | Work with `onSearch` to make search value controlled | string | - | | | showArrow | Whether to show the `suffixIcon`，when single selection mode, default `true` | boolean | - | | | 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` | - | | | suffixIcon | The custom suffix icon,you must set `showArrow` to `true` manually in multiple selection mode | ReactNode | - | | | switcherIcon | customize collapse \| expand icon of tree node | 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<{ 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<{ id: string, pId: string, rootPId: string }> | false | | | treeDefaultExpandAll | Whether to expand all treeNodes by default | boolean | false | | | treeDefaultExpandedKeys | Default expanded treeNodes | string\[] | - | | | 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 | | | 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\[] | - | | | 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) | - | | ### 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 | - | | ## FAQ ### How to get parent node in onChange? We don't provide this since performance consideration. You can get by this way: ### Why sometime customize Option cause scroll break? You can ref Select [FAQ](/components/select).