private void TryShown(ListTabItem currentSelectedItem)
{
var l = currentSelectedItem.Content as ITabLifetime;
l?.Shown();
var f = currentSelectedItem.Content as FrameworkElement;
if (f != null && f != f.DataContext)
{
l = f.DataContext as ITabLifetime;
l?.Shown();
}
TabShown?.Invoke(this, new MsgEventArgs <ListTabItem>()
{
Parameter = currentSelectedItem
});
}
protected virtual void OnTabShown(EventArgs e)
{
TabShown?.Invoke(this, e);
}