private void Window_Loaded(object sender, RoutedEventArgs e)
{
RecordService recordService = new RecordService();
records = new RecordCollection(recordService.GetAll());
ProgramService programService = new ProgramService();
programs = new ProgramCollection(programService.GetAll());
dgridTvRecord.ItemsSource = records.collecion;
dgridProgram.ItemsSource = programs.collecion;
ChannelService channelService = new ChannelService();
channels = new ChannelCollection(channelService.GetAll());
}