private void UpdateComboBox() { cbArmies.Items.Clear(); List <Army> allArmies = ArmyDb.GetAllArmies(); if (allArmies.Count > 0) { cbArmies.Enabled = true; for (int i = 0; i < allArmies.Count; i++) { cbArmies.Items.Add(allArmies[i].ArmyName); } } else { cbArmies.Enabled = false; } }