private void GetTransmitters(string country) { var xmitters = SdApi.GetTransmitters(country); var sites = new List <string>(xmitters.Keys); foreach (var site in sites) { if (!xmitters.TryGetValue(site, out var lineup)) { continue; } _headends.Add(new SubscribedLineup() { Transport = "DVB-T", Name = site, Location = null, Lineup = lineup }); listBox1.Items.Add(site); } }