protected override void OnElementChanged(ElementChangedEventArgs <MultiLevelListView> e)
{
base.OnElementChanged(e);
if (Control == null)
{
SetNativeControl(new UITableView
{
BackgroundColor = UIColor.FromRGB(243, 239, 236),
RowHeight = 100,
AutoresizingMask = UIViewAutoresizing.All,
SeparatorStyle = UITableViewCellSeparatorStyle.None,
Bounces = true,
BouncesZoom = true,
ScrollEnabled = true,
SectionFooterHeight = 0,
SectionHeaderHeight = 70,
TableHeaderView = new UIView(new CGRect(0, 0, 100, 70)),
ContentInset = new UIEdgeInsets(-70, 0, 0, 0)
});
}
if (e.NewElement != null)
{
var dataSource = new ExpandableListDataSource(e.NewElement);
Control.Source = dataSource;
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == MultiLevelListView.ItemsProperty.PropertyName)
{
var dataSource = new ExpandableListDataSource(Element, this);
Control.Source = dataSource;
Control.ReloadData();
SetNeedsDisplay();
}
if (e.PropertyName == MultiLevelListView.ChildSelectedCommandProperty.PropertyName)
{
var eventArgs = e as ExpandableListViewEventArgs;
var dataItem = Element.Items[eventArgs.GroupPosition].ChildItems[eventArgs.ChildPosition];
Element.ChildSelectedCommand?.Execute(dataItem);
}
}