void OnDataChanged()
{
InvalidateCount();
if (ActionModeContext != null && !TemplatedItemsView.TemplatedItems.Contains(ActionModeContext))
{
CloseContextActions();
}
if (IsAttachedToWindow)
{
NotifyDataSetChanged();
}
else
{
// In a TabbedPage page with two pages, Page A and Page B with ListView, if A changes B's ListView,
// we need to reset the ListView's adapter to reflect the changes on page B
// If there header and footer are present at the reset time of the adapter
// they will be DOUBLE added to the ViewGround (the ListView) causing indexes to be off by one.
if (_realListView.IsDisposed())
{
return;
}
_realListView.RemoveHeaderView(HeaderView);
_realListView.RemoveFooterView(FooterView);
_realListView.Adapter = _realListView.Adapter;
_realListView.AddHeaderView(HeaderView);
_realListView.AddFooterView(FooterView);
}
}