ant-design/components/collapse/index.en-US.md

category	type	title
Components	Views	Collapse

A content area which can be collapsed and expanded.

When to use

• Can be used to group or hide complex regions to keep the page clean.
• Accordion is a special kind of Collapse, which allows only one panel to be expanded at a time.

API

Collapse

Property	Description	Type	Default
activeKey	key of the active panel	Array or String	No default value. In accordion mode, it's the key of the first panel.
defaultActiveKey	key of the initialized active panel	String	-
onChange	a callback function, which can be executed when you switch the panels	Function	-

Collapse.Panel

Property	Description	Type	Default
key	corresponds to the activeKey	String	-
header	title of the panel	React.Element or String	-