private void newHardware_Button_Click(object sender, EventArgs e) { int id = Reader.GetAllHardware().Count + 1; int type; switch (newHardware_PlatformBox.Text) { case "Computer": type = 1; break; case "XBox One": type = 2; break; case "PlayStation 4": type = 3; break; default: type = -1; break; } if (type == -1) { return; } HardwareData newHardware = new HardwareData { ID = id, HardwareType = type, Name = $"{newHardware_PlatformBox.Text}{id}", Booked = false }; Writer.AddHardware(newHardware); MessageBox.Show("Hardware added succesfully!", "Hardware adding", MessageBoxButtons.OK); }