Limit the number of selectable options
In a PWA form, if you want to limit the number a user can click checkboxes, you have to use a Business Logic:
JS
(()=>{var max=3;if(<checkbox1>.filter((e)=>{return e.selected == true}).length > max){console.log("max options selected reached!");<checkbox1>=JSON.parse(JSON.stringify(page["local"]["__c8o_max_check"]));window.setTimeout(()=>{alert("You can not select more than "+max+" options.")},250);}else{console.log("Max not reached!");page["local"]["__c8o_max_check"]=JSON.parse(JSON.stringify(<checkbox1>))}})()
<checkbox1>
is the technical name of the Checkbox component.
This will result in:
the max variable sets the max number of checkboxes that can be checked.
console.log and alert are optional.
Here is the form to import in your No Code Studio environment: