private void button1_Click(object sender, EventArgs e)
        {
            if (int.TryParse(textBox1.Text, out int bodyResultsCount))
            {
                List <string> allowedStuff = checkedListBox1.CheckedItems
                                             .Cast <string>()
                                             .ToList();
                List <Apparel> allItems = tab.GetCachedList()
                                          .Where(x => String.IsNullOrEmpty(x.Material) || allowedStuff.Contains(x.Material))
                                          .ToList();

                string fieldName = (comboBox2.SelectedItem as ComboBoxColumn)?.Name;

                List <Apparel> filtered = ApparelFilter.FilterApparels(allItems, fieldName, comboBox3.SelectedIndex == 0,
                                                                       comboBox1.SelectedIndex == 0, bodyResultsCount);

                if (checkBox1.Checked)
                {
                    tab.ClearCart();
                }
                tab.AddInToCart(filtered);
                tab.ActivateCart(true, true);
                this.Close();
            }
            else
            {
                MessageBox.Show("Invalid number!");
            }
        }
        public static List <Apparel> FilterApparels(List <Apparel> list, string fieldName, bool orderByDescending, bool onlyCraftable, int bodyResultsCount)
        {
            ApparelFilter filter = new ApparelFilter(list, fieldName);

            if (orderByDescending)
            {
                filter.SortApparelsByDescending();
            }
            else
            {
                filter.SortApparels();
            }

            return(filter.Filter(onlyCraftable, bodyResultsCount));
        }