---
url: "https://vueda.dev/v3/reference/api/vue/CollapsibleTrigger.md"
title: "CollapsibleTrigger"
---

# CollapsibleTrigger

## Overview

The trigger button that toggles a Collapsible open or closed.

Theme entry: [CollapsibleTrigger](/v3/reference/theming/keys/CollapsibleTrigger.md)

## Props

| Name | Type | Required | Default | Description |
| --- | --- | --- | --- | --- |
| <span id="prop-themeOverride">themeOverride</span> | `Object` |  | `null` | A partial ThemeObject keyed by component name, merged over this component's theme and provided to descendants. |
| <span id="prop-class">class</span> | `import('vue').HTMLAttributes['class']` |  | `undefined` | Additional CSS classes to apply to the root element. |
| <span id="prop-as">as</span> | `string\|object` |  | `undefined` | The element or component to render as. |
| <span id="prop-asChild">asChild</span> | `boolean` |  | `false` | When true, merges props onto the child element instead of rendering a wrapper. |

## Slots

### `default` {#slot-default}

Slot.

## Source

`client/lib/shell/collapsible/CollapsibleTrigger.vue`