private void BAdd_Click(object sender, EventArgs e) { Product P = new Product(); P.Name = TBName.Text; P.Quanity = decimal.Parse(TBQuanity.Text); P.Supplier = CBSupplier.Text; products.Add(P); TBName.Clear(); TBQuanity.Text = "1"; CBSupplier.Text = ""; TSSLQuanity.Text = products.Count.ToString(); MessageBox.Show( "Dodano produkt numer " + products.Count.ToString() + "!", "Pomyślnie dodano", MessageBoxButtons.OK, MessageBoxIcon.Information ); }