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--- |
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category: Components |
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group: Data Entry |
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title: Cascader |
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description: Cascade selection box. |
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*ngTnQZNOcK0AAAAAAAAAAAAADrJ8AQ/original |
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*Nt8xR7afyr0AAAAAAAAAAAAADrJ8AQ/original |
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demo: |
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cols: 2 |
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--- |
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## When To Use |
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- When you need to select from a set of associated data set. Such as province/city/district, company level, things classification. |
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- When selecting from a large data set, with multi-stage classifications separated for easy selection. |
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- Chooses cascade items in one float layer for better user experience. |
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## Examples |
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<!-- prettier-ignore --> |
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<code src="./demo/basic.tsx">Basic</code> |
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<code src="./demo/default-value.tsx">Default value</code> |
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<code src="./demo/custom-trigger.tsx">Custom trigger</code> |
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<code src="./demo/hover.tsx">Hover</code> |
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<code src="./demo/disabled-option.tsx">Disabled option</code> |
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<code src="./demo/change-on-select.tsx">Change on select</code> |
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<code src="./demo/multiple.tsx">Multiple</code> |
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<code src="./demo/showCheckedStrategy.tsx">ShowCheckedStrategy</code> |
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<code src="./demo/size.tsx">Size</code> |
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<code src="./demo/custom-render.tsx">Custom render</code> |
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<code src="./demo/search.tsx">Search</code> |
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<code src="./demo/lazy.tsx">Load Options Lazily</code> |
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<code src="./demo/fields-name.tsx">Custom Field Names</code> |
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<code src="./demo/suffix.tsx" version="5.22.0">Prefix and Suffix</code> |
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<code src="./demo/custom-dropdown.tsx">Custom dropdown</code> |
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<code src="./demo/placement.tsx">Placement</code> |
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<code src="./demo/variant.tsx" version="5.13.0">Variants</code> |
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<code src="./demo/status.tsx">Status</code> |
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<code src="./demo/panel.tsx" version=">= 5.10.0">Panel</code> |
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<code src="./demo/render-panel.tsx" debug>_InternalPanelDoNotUseOrYouWillBeFired</code> |
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<code src="./demo/component-token.tsx" debug>Component Token</code> |
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## API |
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Common props ref:[Common props](/docs/react/common-props) |
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```jsx |
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<Cascader options={options} onChange={onChange} /> |
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``` |
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| Property | Description | Type | Default | Version | |
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| --- | --- | --- | --- | --- | |
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| allowClear | Show clear button | boolean \| { clearIcon?: ReactNode } | true | 5.8.0: Support object type | |
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| autoClearSearchValue | Whether the current search will be cleared on selecting an item. Only applies when `multiple` is `true` | boolean | true | 5.9.0 | |
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| autoFocus | If get focus when component mounted | boolean | false | | |
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| changeOnSelect | Change value on each selection if set to true, see above demo for details | boolean | false | | |
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| className | The additional css class | string | - | | |
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| classNames | Semantic DOM class | [Record<SemanticDOM, string>](#semantic-dom) | - | 5.25.0 | |
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| defaultOpen | Initial visible of cascader popup | boolean | - | | |
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| defaultValue | Initial selected value | string\[] \| number\[] | \[] | | |
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| disabled | Whether disabled select | boolean | false | | |
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| displayRender | The render function of displaying selected options | (label, selectedOptions) => ReactNode | label => label.join(`/`) | `multiple`: 4.18.0 | |
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| tagRender | Custom render function for tags in `multiple` mode | (label: string, onClose: function, value: string) => ReactNode | - | | |
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| ~~popupClassName~~ | The additional className of popup overlay, use `classNames.popup.root` instead | string | - | 4.23.0 | |
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| ~~dropdownRender~~ | Customize dropdown content, use `popupRender` instead | (menus: ReactNode) => ReactNode | - | 4.4.0 | |
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| popupRender | Customize dropdown content | (menus: ReactNode) => ReactNode | - | | |
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| ~~dropdownStyle~~ | The style of dropdown menu, use `styles.popup.root` instead | CSSProperties | - | | |
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| expandIcon | Customize the current item expand icon | ReactNode | - | 4.4.0 | |
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| expandTrigger | expand current item when click or hover, one of `click` `hover` | string | `click` | | |
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| fieldNames | Custom field name for label and value and children | object | { label: `label`, value: `value`, children: `children` } | | |
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| getPopupContainer | Parent Node which the selector should be rendered to. Default to `body`. When position issues happen, try to modify it into scrollable content and position it relative. [example](https://codepen.io/afc163/pen/zEjNOy?editors=0010) | function(triggerNode) | () => document.body | | |
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| loadData | To load option lazily, and it cannot work with `showSearch` | (selectedOptions) => void | - | | |
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| maxTagCount | Max tag count to show. `responsive` will cost render performance | number \| `responsive` | - | 4.17.0 | |
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| maxTagPlaceholder | Placeholder for not showing tags | ReactNode \| function(omittedValues) | - | 4.17.0 | |
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| maxTagTextLength | Max tag text length to show | number | - | 4.17.0 | |
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| notFoundContent | Specify content to show when no result matches | ReactNode | `Not Found` | | |
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| open | Set visible of cascader popup | boolean | - | 4.17.0 | |
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| options | The data options of cascade | [Option](#option)\[] | - | | |
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| placeholder | The input placeholder | string | - | | |
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| placement | Use preset popup align config from builtinPlacements | `bottomLeft` `bottomRight` `topLeft` `topRight` | `bottomLeft` | 4.17.0 | |
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| prefix | The custom prefix | ReactNode | - | 5.22.0 | |
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| showSearch | Whether show search input in single mode | boolean \| [Object](#showsearch) | false | | |
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| size | The input size | `large` \| `middle` \| `small` | - | | |
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| status | Set validation status | 'error' \| 'warning' | - | 4.19.0 | |
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| styles | Semantic DOM style | [Record<SemanticDOM, CSSProperties>](#semantic-dom) | - | 5.25.0 | |
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| suffixIcon | The custom suffix icon | ReactNode | - | | |
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| value | The selected value | string\[] \| number\[] | - | | |
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| variant | Variants of selector | `outlined` \| `borderless` \| `filled` \| `underlined` | `outlined` | 5.13.0 \| `underlined`: 5.24.0 | |
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| onChange | Callback when finishing cascader select | (value, selectedOptions) => void | - | | |
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| ~~onDropdownVisibleChange~~ | Callback when popup shown or hidden, use `onOpenChange` instead | (value) => void | - | 4.17.0 | |
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| onOpenChange | Callback when popup shown or hidden | (value) => void | - | | |
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| multiple | Support multiple or not | boolean | - | 4.17.0 | |
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| removeIcon | The custom remove icon | ReactNode | - | | |
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| showCheckedStrategy | The way show selected item in box. ** `SHOW_CHILD`: ** just show child treeNode. **`Cascader.SHOW_PARENT`:** just show parent treeNode (when all child treeNode under the parent treeNode are checked) | `Cascader.SHOW_PARENT` \| `Cascader.SHOW_CHILD` | `Cascader.SHOW_PARENT` | 4.20.0 | |
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| searchValue | Set search value, Need work with `showSearch` | string | - | 4.17.0 | |
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| onSearch | The callback function triggered when input changed | (search: string) => void | - | 4.17.0 | |
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| ~~dropdownMenuColumnStyle~~ | The style of the drop-down menu column, use `popupMenuColumnStyle` instead | CSSProperties | - | | |
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| popupMenuColumnStyle | The style of the drop-down menu column | CSSProperties | - | | |
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| loadingIcon | The appearance of lazy loading (now is useless) | ReactNode | - | | |
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| optionRender | Customize the rendering dropdown options | (option: Option) => React.ReactNode | - | 5.16.0 | |
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### showSearch |
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| Property | Description | Type | Default | Version | |
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| --- | --- | --- | --- | --- | |
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| filter | The function will receive two arguments, inputValue and option, if the function returns true, the option will be included in the filtered set; Otherwise, it will be excluded | function(inputValue, path): boolean | - | | |
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| limit | Set the count of filtered items | number \| false | 50 | | |
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| matchInputWidth | Whether the width of list matches input, ([how it looks](https://github.com/ant-design/ant-design/issues/25779)) | boolean | true | | |
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| render | Used to render filtered options | function(inputValue, path): ReactNode | - | | |
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| sort | Used to sort filtered options | function(a, b, inputValue) | - | | |
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### Option |
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```typescript |
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interface Option { |
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value: string | number; |
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label?: React.ReactNode; |
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disabled?: boolean; |
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children?: Option[]; |
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// Determines if this is a leaf node(effective when `loadData` is specified). |
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// `false` will force trade TreeNode as a parent node. |
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// Show expand icon even if the current node has no children. |
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isLeaf?: boolean; |
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} |
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``` |
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## 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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## Semantic DOM |
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<code src="./demo/_semantic.tsx" simplify="true"></code> |
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## Design Token |
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<ComponentTokenTable component="Cascader"></ComponentTokenTable> |
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