How to retrieve the expanding accordion item index in .NET MAUI Accordion (SfAccordion)?

You can get the index of an AccordionItem during expansion in .NET MAUI Accordion. This is achieved using the ExpandingAndCollapsingEventArgs of the Expanding event.

public class BehaviorExt : Behavior<SfAccordion>
{
    SfAccordion Accordion;

    protected override void OnAttachedTo(SfAccordion bindable)
    {
        Accordion = bindable;
        Accordion.Expanding += Accordion_Expanding;
        base.OnAttachedTo(bindable);
    }

    private void Accordion_Expanding(object sender, ExpandingAndCollapsingEventArgs e)
    {
        App.Current.MainPage.DisplayAlert("", "AccordionItem expanded at index " + e.Index, "Ok");
    }
}

Download the complete sample on GitHub

Conclusion
I hope you enjoyed learning how to retrieve the expanding accordion item index in SfAccordion in .NET MAUI.
You can refer to our .NET MAUI Accordion feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications. Explore our .NET MAUI Accordion example to understand how to create and manipulate data.
For current customers, check out our components from the License and Downloads page. If you are new to Syncfusion®, try our 30-day free trial to check out our other controls.
Please let us know in the comments section if you have any queries or require clarification. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!