Hide and show many sections of information
const [expandedAll, setExpandedAll] = useState<boolean>(false);
const [expandedList, setExpandedList] = useState<number[]>([]);
useEffect(() => {
setExpandedAll(expandedList.length === 4);
}, [expandedList.length]);
const expandOrCollapseAll = () => {
setExpandedAll((prev) => {
const newState = !prev;
setExpandedList(newState ? [1, 2, 3, 4] : []);
return newState;
});
};
const updateAccordion = (order: number, isOpen: boolean) => {
setExpandedList((prev) => {
if (isOpen) {
return prev.includes(order) ? prev : [...prev, order];
}
return prev.filter((item) => item !== order);
});
};<GoabxButton type="tertiary" size="compact" mb="m" onClick={() => expandOrCollapseAll()}>
{expandedAll ? "Hide all sections" : "Show all sections"}
</GoabxButton>
<GoabAccordion
open={expandedList.includes(1)}
heading="How do I create an account?"
headingSize="medium"
onChange={(open) => updateAccordion(1, open)}
>
To create an account you will need to contact your office admin.
</GoabAccordion>
<GoabAccordion
open={expandedList.includes(2)}
heading="What verification is needed to sign documents digitally?"
headingSize="medium"
onChange={(open) => updateAccordion(2, open)}
>
You will need to verify your identity through our two factor
authentication in addition to the digital signature.
</GoabAccordion>
<GoabAccordion
open={expandedList.includes(3)}
heading="Can I track the status of my service requests online?"
headingSize="medium"
onChange={(open) => updateAccordion(3, open)}
>
Yes, you can see the status of your application on the main service
dashboard when you login. You will receive updates and notifications in
your email as your request progresses.
</GoabAccordion>
<GoabAccordion
open={expandedList.includes(4)}
heading="Are there accessibility features for people with disabilities?"
headingSize="medium"
onChange={(open) => updateAccordion(4, open)}
>
Yes, our digital service is designed with accessibility in mind.{" "}
<a href="#">More information on accessibility.</a>
</GoabAccordion>expandedList: boolean[] = [false, false, false, false];
expandedAll = false;
accordionStatus = "Show all sections";
toggleAccordion(index: number, open: boolean): void {
this.expandedList[index] = open;
this.updateAccordionStatus();
}
onClick(): void {
const isExpanding = this.expandedList.some((isOpen) => !isOpen);
this.expandedList = this.expandedList.map(() => isExpanding);
this.updateAccordionStatus();
}
private updateAccordionStatus(): void {
this.expandedAll = this.expandedList.every((isOpen) => isOpen);
this.accordionStatus = this.expandedList.every((isOpen) => isOpen)
? "Hide all sections"
: "Show all sections";
}<goabx-button type="tertiary" size="compact" mb="m" (onClick)="onClick()">
{{ accordionStatus }}
</goabx-button>
<goab-accordion
heading="How do I create an account?"
headingSize="medium"
[open]="expandedList[0]"
(onChange)="toggleAccordion(0, $event)">
To create an account you will need to contact your office admin.
</goab-accordion>
<goab-accordion
heading="What verification is needed to sign documents digitally?"
headingSize="medium"
[open]="expandedList[1]"
(onChange)="toggleAccordion(1, $event)">
You will need to verify your identity through our two factor authentication in addition to the digital signature.
</goab-accordion>
<goab-accordion
heading="Can I track the status of my service requests online?"
headingSize="medium"
[open]="expandedList[2]"
(onChange)="toggleAccordion(2, $event)">
Yes, you can see the status of your application on the main service dashboard when you login. You will receive updates and notifications in your email as your request progresses.
</goab-accordion>
<goab-accordion
heading="Are there accessibility features for people with disabilities?"
headingSize="medium"
[open]="expandedList[3]"
(onChange)="toggleAccordion(3, $event)">
Yes, our digital service is designed with accessibility in mind. <a href="#">More information on accessibility.</a>
</goab-accordion>const expandedList = [false, false, false, false];
const toggleBtn = document.getElementById("toggle-all-btn");
const accordions = [
document.getElementById("accordion-1"),
document.getElementById("accordion-2"),
document.getElementById("accordion-3"),
document.getElementById("accordion-4"),
];
function updateButtonText() {
const allExpanded = expandedList.every((isOpen) => isOpen);
toggleBtn.textContent = allExpanded ? "Hide all sections" : "Show all sections";
}
accordions.forEach((accordion, index) => {
accordion.addEventListener("_change", (e) => {
expandedList[index] = e.detail.open;
updateButtonText();
});
});
toggleBtn.addEventListener("_click", () => {
const isExpanding = expandedList.some((isOpen) => !isOpen);
expandedList.fill(isExpanding);
accordions.forEach((accordion) => {
accordion.setAttribute("open", isExpanding);
});
updateButtonText();
});<goa-button version="2" type="tertiary" size="compact" mb="m" id="toggle-all-btn">
Show all sections
</goa-button>
<goa-accordion
id="accordion-1"
heading="How do I create an account?"
heading-size="medium">
To create an account you will need to contact your office admin.
</goa-accordion>
<goa-accordion
id="accordion-2"
heading="What verification is needed to sign documents digitally?"
heading-size="medium">
You will need to verify your identity through our two factor authentication in addition to the digital signature.
</goa-accordion>
<goa-accordion
id="accordion-3"
heading="Can I track the status of my service requests online?"
heading-size="medium">
Yes, you can see the status of your application on the main service dashboard when you login. You will receive updates and notifications in your email as your request progresses.
</goa-accordion>
<goa-accordion
id="accordion-4"
heading="Are there accessibility features for people with disabilities?"
heading-size="medium">
Yes, our digital service is designed with accessibility in mind. <a href="#">More information on accessibility.</a>
</goa-accordion>Allow users to expand and collapse multiple accordion sections, with a button to show or hide all sections at once.
When to use
Use this pattern when:
- Presenting FAQ-style content
- Users need to scan multiple sections quickly
- Content is long and would benefit from progressive disclosure
- Providing a “show all” and “hide all” option improves usability
Considerations
- Track the open state of each accordion individually
- Update the button text based on whether all sections are expanded or collapsed
- Consider keyboard accessibility for the expand/collapse all functionality
- Accordion headings should be descriptive and scannable