## API ### Collapse | Property | Description | Type | Default | | -------- | ----------- | ---- | ------- | | activeKey | Key of the active panel | string\[]\|string | No default value. In `accordion` mode, it's the key of the first panel. | | defaultActiveKey | Key of the initial active panel | string | - | | bordered | Toggles rendering of the border around the collapse block | boolean | `true` | | accordion | If `true`, `Collapse` renders as `Accordion` | boolean | `false` | | expandIcon | allow to customize collapse icon | Function(props):VNode \| slot="expandIcon" slot-scope="props"\|v-slot:expandIcon="props" | | destroyInactivePanel | Destroy Inactive Panel | boolean | `false` | ### events | Events Name | Description | Arguments | | --- | --- | --- | | change | Callback function executed when active panel is changed | function(key) | ### Collapse.Panel | Property | Description | Type | Default | | -------- | ----------- | ---- | ------- | | disabled | If `true`, panel cannot be opened or closed | boolean | `false` | | forceRender | Forced render of content on panel, instead of lazy rending after clicking on header | boolean | `false` | | header | Title of the panel | string | - | | key | Unique key identifying the panel from among its siblings | string | - | | showArrow | If `false`, panel will not show arrow icon | boolean | `true` | ## FAQ ### How to let the arrow to be on the right? You can adjust style of the arrow: ``` .ant-collapse .ant-collapse-item .ant-collapse-header .anticon { left: initial; right: 16px; } ```