private void RegisterAccordionItem(AccordionItem item)
{
item.ArrowVisibility = ShowArrow ? Visibility.Visible : Visibility.Hidden;
item.Collapse();
item.OnExpandedEvent += OnAccordionItemExpanded;
item.OnCollapsedEvent += OnAccordionItemCollapsed;
}
void OnAccordionItemExpanded(AccordionItem expandedItem)
{
foreach (var item in Items)
{
var accordionItem = item as AccordionItem;
if (accordionItem != null)
{
if (expandedItem != accordionItem)
{
if (accordionItem.IsExpanded)
{
accordionItem.Collapse();
}
}
}
}
}
void OnAccordionItemCollapsed(AccordionItem collapsedItem)
{
foreach (var item in Items)
{
var accordionItem = item as AccordionItem;
if (accordionItem != null)
{
if (collapsedItem != accordionItem)
{
if (accordionItem.IsExpanded)
{
return;
}
}
}
}
collapsedItem.Expand();
}
private void OnControlLoaded(object sender, RoutedEventArgs e)
{
var nonAccordionItems = new List <object>();
foreach (var item in Items)
{
var accordionItem = item as AccordionItem;
if (accordionItem != null)
{
RegisterAccordionItem(accordionItem);
}
else
{
nonAccordionItems.Add(item);
}
}
foreach (var item in nonAccordionItems)
{
Items.Remove(item); // remove from items
// create accordion item for it
var newAccordionItem = new AccordionItem
{
Content = item,
Header = new TextBlock()
};
Items.Add(newAccordionItem);
RegisterAccordionItem(newAccordionItem);
}
foreach (var item in Items)
{
var accordionItem = item as AccordionItem;
if (accordionItem != null)
{
accordionItem.Expand();
break;
}
}
}
public ToggleCommand(AccordionItem owner)
{
this.owner = owner;
}