--- category: Components type: Data Entry title: Cascader cover: https://gw.alipayobjects.com/zos/alicdn/UdS8y8xyZ/Cascader.svg --- Cascade selection box. ## When To Use - When you need to select from a set of associated data set. Such as province/city/district, company level, things classification. - When selecting from a large data set, with multi-stage classification separated for easy selection. - Chooses cascade items in one float layer for better user experience. ## API ```jsx ``` | Property | Description | Type | Default | Version | | --- | --- | --- | --- | --- | | allowClear | Whether allow clear | boolean | true | | | autoFocus | If get focus when component mounted | boolean | false | | | bordered | Whether has border style | boolean | true | | | clearIcon | The custom clear icon | ReactNode | - | | | changeOnSelect | (Work on single select) Change value on each selection if set to true, see above demo for details | boolean | false | | | className | The additional css class | string | - | | | defaultValue | Initial selected value | string\[] \| number\[] | \[] | | | disabled | Whether disabled select | boolean | false | | | displayRender | The render function of displaying selected options | (label, selectedOptions) => ReactNode | label => label.join(`/`) | `multiple`: 4.18.0 | | popupClassName | The additional className of popup overlay | string | - | 4.23.0 | | dropdownRender | Customize dropdown content | (menus: ReactNode) => ReactNode | - | 4.4.0 | | expandIcon | Customize the current item expand icon | ReactNode | - | 4.4.0 | | expandTrigger | expand current item when click or hover, one of `click` `hover` | string | `click` | | | fieldNames | Custom field name for label and value and children | object | { label: `label`, value: `value`, children: `children` } | | | 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 | | | loadData | To load option lazily, and it cannot work with `showSearch` | (selectedOptions) => void | - | | | maxTagCount | Max tag count to show. `responsive` will cost render performance | number \| `responsive` | - | 4.17.0 | | maxTagPlaceholder | Placeholder for not showing tags | ReactNode \| function(omittedValues) | - | 4.17.0 | | notFoundContent | Specify content to show when no result matches | string | `Not Found` | | | open | Set visible of cascader popup | boolean | - | 4.17.0 | | options | The data options of cascade | [Option](#Option)\[] | - | | | placeholder | The input placeholder | string | `Please select` | | | placement | Use preset popup align config from builtinPlacements | `bottomLeft` `bottomRight` `topLeft` `topRight` | `bottomLeft` | 4.17.0 | | showSearch | Whether show search input in single mode | boolean \| [Object](#showSearch) | false | | | size | The input size | `large` \| `middle` \| `small` | - | | | status | Set validation status | 'error' \| 'warning' | - | 4.19.0 | | style | The additional style | CSSProperties | - | | | suffixIcon | The custom suffix icon | ReactNode | - | | | value | The selected value | string\[] \| number\[] | - | | | onChange | Callback when finishing cascader select | (value, selectedOptions) => void | - | | | onDropdownVisibleChange | Callback when popup shown or hidden | (value) => void | - | 4.17.0 | | multiple | Support multiple or not | boolean | - | 4.17.0 | | 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 | | removeIcon | The custom remove icon | ReactNode | - | | | searchValue | Set search value,Need work with `showSearch` | string | - | 4.17.0 | | onSearch | The callback function triggered when input changed | (search: string) => void | - | 4.17.0 | | dropdownMenuColumnStyle | The style of the drop-down menu column | CSSProperties | - | | | loadingIcon | The apparence of lazy loading (now is useless) | ReactNode | - | | ### showSearch | Property | Description | Type | Default | Version | | --- | --- | --- | --- | --- | | 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 | - | | | limit | Set the count of filtered items | number \| false | 50 | | | matchInputWidth | Whether the width of list matches input, ([how it looks](https://github.com/ant-design/ant-design/issues/25779)) | boolean | true | | | render | Used to render filtered options | function(inputValue, path): ReactNode | - | | | sort | Used to sort filtered options | function(a, b, inputValue) | - | | ### Option ```typescript interface Option { value: string | number; label?: React.ReactNode; disabled?: boolean; children?: Option[]; // Determines if this is a leaf node(effective when `loadData` is specified). // `false` will force trade TreeNode as a parent node. // Show expand icon even if the current node has no children. isLeaf?: boolean; } ``` ## Methods | Name | Description | Version | | ------- | ------------ | ------- | | blur() | Remove focus | | | focus() | Get focus | |