public void FillTest(int n) { n = Math.Min(n, 100); Items.Clear(); Users.Clear(); Supplies.Clear(); var defImg = new Bitmap(Path.GetFullPath("item.png")); for (int i = 0; i < n; i++) { Items.Add(new Item($"Product_{i}", i % 2 == 0 ? "l" : "kg", i + 1, 10000, defImg)); Users.Add(new User($"User_{i}", "1234")); } for (int i = 0; i < n; i++) { var k = new List <Portion>(10); for (int j = 0; j < 10; j++) { k.Add(new Portion { Item = Items[(i + j) % n], Amount = 1 + (i + j) % 100 }); Items[i % n].Sold += 1 + (i + j) % 100; } Users[i].History = k; Supplies.Add(new Supply(k, DateTime.Now - TimeSpan.FromDays(n - i))); } Supplies.Reverse(); UpdateSupplies(); }