//Перерисовка элементов формы public void PaintElements() { var package = _gift.Package; PackageBox.Text = package.KindofPackage; var printer = new ListBoxWriter(); printer.Print(_gift); var sweets = _gift.Sweets; var sweetsList = new List <Sweetness>(); sweetsList.AddRange(sweets.Keys); SweetnessBox.DataSource = sweetsList; SweetnessBox.DisplayMember = "Info"; GiftWeightLabel.Text = _gift.CalcWeight().ToString(); }