static void Main(string[] args) { TvBusinessLayer layer = new TvBusinessLayer(); layer.AddCard("name1", "path1", 1); layer.AddCard("name2", "path2", 2); layer.AddCard("name3", "path3", 3); layer.AddCard("name4", "path4", 4); Card card = layer.GetCardByName("name2"); card = layer.GetCardByDevicePath("path4"); Channel channel = layer.AddChannel("provider", "name"); channel = layer.AddChannel("provider", "name"); DatabaseManager.Instance.SaveChanges(); }