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67 lines
1.8 KiB
Markdown
67 lines
1.8 KiB
Markdown
---
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order: 8
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title:
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zh-CN: 弹出位置
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en-US: Placement
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---
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## zh-CN
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可以通过 `placement` 手动指定弹出的位置。
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## en-US
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You can manually specify the position of the popup via `placement`.
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```tsx
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import type { RadioChangeEvent } from 'antd';
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import { Radio, TreeSelect } from 'antd';
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import type { SelectCommonPlacement } from 'antd/es/_util/motion';
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import React, { useState } from 'react';
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const { TreeNode } = TreeSelect;
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const App: React.FC = () => {
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const [placement, SetPlacement] = useState<SelectCommonPlacement>('topLeft');
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const placementChange = (e: RadioChangeEvent) => {
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SetPlacement(e.target.value);
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};
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return (
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<>
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<Radio.Group value={placement} onChange={placementChange}>
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<Radio.Button value="topLeft">topLeft</Radio.Button>
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<Radio.Button value="topRight">topRight</Radio.Button>
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<Radio.Button value="bottomLeft">bottomLeft</Radio.Button>
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<Radio.Button value="bottomRight">bottomRight</Radio.Button>
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</Radio.Group>
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<br />
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<br />
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<TreeSelect
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showSearch
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dropdownStyle={{ maxHeight: 400, overflow: 'auto', minWidth: 300 }}
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placeholder="Please select"
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dropdownMatchSelectWidth={false}
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placement={placement}
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allowClear
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treeDefaultExpandAll
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>
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<TreeNode value="parent 1" title="parent 1">
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<TreeNode value="parent 1-0" title="parent 1-0">
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<TreeNode value="leaf1" title="leaf1" />
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<TreeNode value="leaf2" title="leaf2" />
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</TreeNode>
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<TreeNode value="parent 1-1" title="parent 1-1">
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<TreeNode value="leaf3" title={<b style={{ color: '#08c' }}>leaf3</b>} />
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</TreeNode>
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</TreeNode>
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</TreeSelect>
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</>
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);
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};
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export default App;
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```
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