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52 lines
3.1 KiB
Markdown
52 lines
3.1 KiB
Markdown
---
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category: Components
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type: Navigation
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title: Dropdown
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cover: https://gw.alipayobjects.com/zos/alicdn/eedWN59yJ/Dropdown.svg
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---
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A dropdown list.
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## When To Use
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When there are more than a few options to choose from, you can wrap them in a `Dropdown`. By hovering or clicking on the trigger, a dropdown menu will appear, which allows you to choose an option and execute the relevant action.
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## API
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### Dropdown
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| arrow | Whether the dropdown arrow should be visible | boolean | false | |
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| disabled | Whether the dropdown menu is disabled | boolean | - | |
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| getPopupContainer | To set the container of the dropdown menu. The default is to create a `div` element in `body`, but you can reset it to the scrolling area and make a relative reposition. [Example on CodePen](https://codepen.io/afc163/pen/zEjNOy?editors=0010) | function(triggerNode) | () => document.body | |
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| overlay | The dropdown menu | [Menu](/components/menu) \| () => Menu | - | |
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| overlayClassName | Class name of the dropdown root element | string | - | |
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| overlayStyle | Style of the dropdown root element | object | - | |
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| placement | Placement of popup menu: `bottomLeft`, `bottomCenter`, `bottomRight`, `topLeft`, `topCenter` or `topRight` | string | `bottomLeft` | |
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| trigger | The trigger mode which executes the dropdown action. Note that hover can't be used on touchscreens | Array<`click`\|`hover`\|`contextMenu`> | \[`hover`] | |
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| visible | Whether the dropdown menu is currently visible | boolean | - | |
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| onVisibleChange | Called when the visible state is changed | function(visible) | - | |
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You should use [Menu](/components/menu/) as `overlay`. The menu items and dividers are also available by using `Menu.Item` and `Menu.Divider`.
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> Warning: You must set a unique `key` for `Menu.Item`.
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>
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> Menu of Dropdown is unselectable by default, you can make it selectable via `<Menu selectable>`.
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### Dropdown.Button
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| Property | Description | Type | Default | Version |
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| --- | --- | --- | --- | --- |
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| disabled | Whether the dropdown menu is disabled | boolean | - | |
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| icon | Icon (appears on the right) | ReactNode | - | |
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| overlay | The dropdown menu | [Menu](/components/menu) | - | |
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| placement | Placement of popup menu: `bottomLeft` `bottomCenter` `bottomRight` `topLeft` `topCenter` `topRight` | string | `bottomLeft` | |
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| size | Size of the button, the same as [Button](/components/button) | string | `default` | |
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| trigger | The trigger mode which executes the dropdown action | Array<`click`\|`hover`\|`contextMenu`> | \[`hover`] | |
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| type | Type of the button, the same as [Button](/components/button) | string | `default` | |
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| visible | Whether the dropdown menu is currently visible | boolean | - | |
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| onClick | The same as [Button](/components/button): called when you click the button on the left | function | - | |
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| onVisibleChange | Called when the visible state is changed | function | - | |
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| buttonsRender | Custom buttons inside Dropdown.Button | ([buttons: ReactNode[]]) => ReactNode | - | |
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