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* docs: add api first appearance * docs: fix auto-complete doc * docs: replace Version Added with Version * docs: date picker common method * docs: date picker common method * docs: tree * docs: remove meaningless 3.0.0
82 lines
6.0 KiB
Markdown
82 lines
6.0 KiB
Markdown
---
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category: Components
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type: Data Entry
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title: TreeSelect
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---
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Tree selection control.
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## When To Use
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`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.
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## API
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### Tree props
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| allowClear | Whether allow clear | boolean | false | |
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| autoClearSearchValue | auto clear search input value when multiple select is selected/deselected | boolean | true | 3.7.0 |
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| defaultValue | To set the initial selected treeNode(s). | string\|string\[] | - | |
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| disabled | Disabled or not | boolean | false | |
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| dropdownClassName | className of dropdown menu | string | - | 3.3.0 |
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| dropdownMatchSelectWidth | Determine whether the dropdown menu and the select input are the same width. Default set `min-width` same as input. | boolean | true | |
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| dropdownStyle | To set the style of the dropdown menu | object | - | |
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| 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 | |
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| 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 | |
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| labelInValue | whether to embed label in value, turn the format of value from `string` to `{value: string, label: ReactNode, halfChecked: string[]}` | boolean | false | |
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| loadData | Load data asynchronously. | function(node) | - | |
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| maxTagCount | Max tag count to show | number | - | 3.7.0 |
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| maxTagPlaceholder | Placeholder for not showing tags | ReactNode/function(omittedValues) | - | 3.7.0 |
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| multiple | Support multiple or not, will be `true` when enable `treeCheckable`. | boolean | false | |
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| placeholder | Placeholder of the select input | string | - | |
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| searchPlaceholder | Placeholder of the search input | string | - | |
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| searchValue | work with `onSearch` to make search value controlled. | string | - | 3.7.0 |
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| 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 | 3.13.1 |
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| showCheckedStrategy | The way show selected item in box. **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). | enum { TreeSelect.SHOW_ALL, TreeSelect.SHOW_PARENT, TreeSelect.SHOW_CHILD } | TreeSelect.SHOW_CHILD | |
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| showSearch | Support search or not | boolean | single: `false` \| multiple: `true` | |
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| size | To set the size of the select input, options: `large` `small` | string | 'default' | |
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| suffixIcon | The custom suffix icon | ReactNode | - | 3.10.0 |
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| treeCheckable | Whether to show checkbox on the treeNodes | boolean | false | |
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| 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 | |
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| 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] }> | \[] | |
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| 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` | false\|object\<{ id: string, pId: string, rootPId: string }> | false | |
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| treeDefaultExpandAll | Whether to expand all treeNodes by default | boolean | false | |
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| treeDefaultExpandedKeys | Default expanded treeNodes | string\[] | - | |
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| treeExpandedKeys | Set expanded keys | string\[] | - | 3.10.0 |
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| treeNodeFilterProp | Will be used for filtering if `filterTreeNode` returns true | string | 'value' | |
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| treeNodeLabelProp | Will render as content of select | string | 'title' | |
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| value | To set the current selected treeNode(s). | string\|string\[] | - | |
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| onChange | A callback function, can be executed when selected treeNodes or input value change | function(value, label, extra) | - | |
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| onSearch | A callback function, can be executed when the search input changes. | function(value: string) | - | |
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| onSelect | A callback function, can be executed when you select a treeNode. | function(value, node, extra) | - | |
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| onTreeExpand | A callback function, can be executed when treeNode expanded | function(expandedKeys) | - | 3.10.0 |
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### Tree Methods
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| Name | Description | Version |
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| ------- | ------------ | ------- |
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| blur() | remove focus | |
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| focus() | get focus | |
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### TreeNode props
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> We recommend you to use `treeData` rather than `TreeNode`, to avoid the trouble of manual construction.
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| selectable | can be selected | boolean | true | 3.9.3 |
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| disableCheckbox | Disables the checkbox of the treeNode | boolean | false | |
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| disabled | Disabled or not | boolean | false | |
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| isLeaf | Leaf node or not | boolean | false | |
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| key | Required property (unless using `treeDataSimpleMode`), should be unique in the tree | string | - | |
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| title | Content showed on the treeNodes | string\|ReactNode | '---' | |
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| value | Will be treated as `treeNodeFilterProp` by default, should be unique in the tree | string | - | |
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## FAQ
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### How to get parent node in onChange?
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We don't provide this since performance consideration. You can get by this way: <https://codesandbox.io/s/wk080nn81k>
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