public ActionResult Add(int id, int count = 1)
 {
     var dataProvider = new DataProvider();
     var b = dataProvider.GetBouquetByConcreteId(id);
     b.Count = count;
     _order.Bouquetes.Add(b);
     Response.Redirect("~/Kosik");
     return View("Index");
 }
 public ActionResult ChangeSize(Guid id, int count)
 {
     var dataProvider = new DataProvider();
     var b = dataProvider.GetBouquetByConcreteId(count);
     b.Count = _order.Bouquetes.First(_=>_.OrderItemId == id).Count;
     _order.Bouquetes.Remove(_order.Bouquetes.First(_ => _.OrderItemId == id));
     _order.Bouquetes.Add(b);
     Response.Redirect("~/Kosik");
     return View("Index");
 }