public void RunAdminModule() { Console.Clear(); Console.WriteLine(">>> You have been authenticated. Welcome ADMIN user!\n"); while (option != exitValue) { DisplayAdminMenu(); Console.Write("\nChoose an option: "); input = Console.ReadLine(); bool result = Int32.TryParse(input, out option); if (result) { switch (option) { case 1: Console.Clear(); DisplayInventory.ListInventory(); break; case 2: Console.Clear(); NewItem.GetItemData(); break; case 3: Console.Clear(); ModifyItem.ModifyItemData(); break; case 4: Console.Clear(); RemoveItem.RemoveItemFromInventory(); break; case 5: Console.Clear(); Console.WriteLine("EXITING the application... Thank you!"); break; default: Console.Clear(); Console.WriteLine(">>> Invalid number. Please try again!\n"); break; } } else { Console.Clear(); Console.WriteLine(">>> Invalid input. Please try again!\n"); } } }