public UIScrollableColumn(Transform transform, Texture2D sprite, Screen screen, Vector4 padding, Vector2 spacing)
: base(transform, sprite, screen, padding, spacing, true)
{
screen.kb_selectCallbacks.AddEvent(new _EventArg1 <UIElement>(SelectedChanged));
scrollbar = screen.AddUIElement(new UIScrollbar(
new Transform(new Vector2(transform.X + transform.Width / 2f + 7.5f, transform.Y), new Vector2(15, transform.Height)),
ContentHelper.Box4x4_Sprite,
ContentHelper.GetSprite("Sprites/UI/handle"),
null,
this,
screen
));
}