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---
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category: Components
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type: Data Display
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title: Collapse
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cols: 1
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---
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A content area which can be collapsed and expanded.
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## When To Use
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- Can be used to group or hide complex regions to keep the page clean.
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- `Accordion` is a special kind of `Collapse`, which allows only one panel to be expanded at a time.
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## API
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### Collapse
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| Property | Description | Type | Default |
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| -------- | ----------- | ---- | ------- |
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| activeKey | Key of the active panel | string\[]\|string | No default value. In `accordion` mode, it's the key of the first panel. |
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| defaultActiveKey | Key of the initial active panel | string | - |
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| onChange | Callback function executed when active panel is changed | Function | - |
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### Collapse.Panel
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| Property | Description | Type | Default |
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| -------- | ----------- | ---- | ------- |
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| disabled | If `true`, panel cannot be opened or closed | boolean | `false` |
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| header | Title of the panel | string\|ReactNode | - |
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| key | Unique key identifying the panel from among its siblings | string | - |
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