private static void OnItemsSourceChanged(AutoGrid grid, object?oldValue, object?newValue)
{
var sequence = newValue as IEnumerable <object> ?? newValue.To().Enumerable();
grid.Children.Clear();
sequence.BindTo(grid.Children.WrapAsTypedList(), (o, e) => o == e || o == (e as ContentPresenter)?.Content, x =>
{
var element = x as UIElement ?? CreateContentPresenter(x, grid);
if (element != null)
{
element.Visibility = Visibility.Collapsed;
}
return(element);
}, e => e != null, null, grid.InvalidateChildren);
}
private static UIElement?CreateContentPresenter(object?data, AutoGrid container)
{
var element = (FrameworkElement)Selector.SelectTemplate(data, container)?.LoadContent();// new ResourceContentPresenter{Content = data};
if (element is ContentPresenter x)
{
x.Content = data;
}
else if (element is ContentControl y)
{
y.Content = data;
}
else if (element != null)
{
element.DataContext = data;
}
return(element);
}
private static void OnDefaultSizeChanged(AutoGrid grid, string oldValue, string newValue)
{
grid.DefaultGridLength = newValue == null ? default(GridLength?) : grid.CreateGridLength(newValue);
//grid.InvalidateChildren();
}
private static void OnColumnOrRowSizesChanged(AutoGrid grid, string oldValue, string newValue)
{
//grid.InvalidateChildren();
}