private void RemoveConfigurationExecute() { var systemPath = System.Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData); System.IO.DirectoryInfo di = new DirectoryInfo(systemPath); foreach (FileInfo file in di.GetFiles()) { if (file.Name == (SelectedConfig + ".xml")) { file.Delete(); ConfigList.Remove(SelectedConfig); } } SelectedConfig = ConfigList.FirstOrDefault(); }