You can show or hide the AccoridonItem in Xamarin.Forms SfAccordion by handling the ViewModel bound collection with add or remove action.
You can also refer the following article.
https://www.syncfusion.com/kb/11383/how-to-show-or-hide-accordionitem-in-xamarin-forms-sfaccordion
C#
OnHideOrShow handler is used to show or hide the particular AccordionItem by updating the collection.
public class BehaviorClass : Behavior<ContentPage>
{
Contact deletedItem = null;
SfAccordion accordion;
Button HideOrShow;
protected override void OnAttachedTo(ContentPage bindable)
{
base.OnAttachedTo(bindable);
accordion = bindable.FindByName<SfAccordion>("Accordion");
HideOrShow = bindable.FindByName<Button>("HideOrShow");
HideOrShow.Clicked += OnHideOrShow;
}
private void OnHideOrShow(object sender, EventArgs e)
{
var items = (sender as Button).BindingContext as ViewModel;
if (deletedItem == null)
{
deletedItem = items.ContactsInfo[2];
items.ContactsInfo.RemoveAt(2);
}
else
{
items.ContactsInfo.Insert(2, deletedItem);
deletedItem = null;
}
}
}Outut
