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What does the component do?

It is part of the Accordion component.

When should the component be used?

  • Only within the Accordion component.

Parent Components

Anatomy of the component
Number Type Description Optional Info
1 Component sbb-extension-panel No
2 Component sbb-expansion-panel-header No
2a Component sbb-icon Yes
2b Text Label No
2c Component sbb-icon No Zeigt den Zustand an
3 Component sbb-expansion-panel-content No
3a Slot Beliebiger Inhalt erlaubt No


Expansion Panel Header
HTML-Markup kopiert.

The sbb-expansion-panel-header is a component which is meant to be used as a header
in the sbb-expansion-panel,
acting as a control for an expanding / collapsing content, like a native <summary> tag.



The component is internally rendered as a button, and it is possible to provide text via an unnamed slot.
On the left side, a toggle icon is displayed; it flips based on the host's aria-expanded property.

The component can optionally display a sbb-icon at the component start using the iconName
property or via custom content using the icon slot.
If using the SBB icons, the icon should be a medium size icon.

<sbb-expansion-panel-header icon-name="swisspass-medium">Header</sbb-expansion-panel-header>


The component can be displayed in disabled state using the self-named property.

<sbb-expansion-panel-header disabled>Header</sbb-expansion-panel-header>


When the element is clicked, the toggleExpanded event is emitted.


Name Attribute Privacy Type Default Description
disabled disabled public boolean false Whether the component is disabled.
form form public string | undefined The
element to associate the button with.
iconName icon-name public string | undefined The icon name we want to use, choose from the small icon variants from the ui-icons category from here https://icons.app.sbb.ch.
name name public string The name of the button element.
type type public SbbButtonType 'button' The type attribute to use for the button.
value value public string The value of the button element.


Name Type Description Inherited From
toggleExpanded CustomEvent<void> Notifies that the sbb-expansion-panel has to expand.


Name Description
Use the unnamed slot to add content to the sbb-expansion-panel-header.
icon Slot used to render the sbb-expansion-panel-header icon.
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