小编Ste*_*ith的帖子

这是一个针对线程迷的人.我有这个方法:

    public void RefreshMelts()
    {
        MeltsAvailable.Clear();

        ThreadPool.QueueUserWorkItem(delegate
        {
            Dispatcher.BeginInvoke((ThreadStart)delegate
            {
                eventAggregator.GetEvent<BusyEvent>().Publish(true);
                eventAggregator.GetEvent<StatusMessageEvent>().Publish(
                    new StatusMessage("Loading melts...", MessageSeverity.Low));
            });

            try
            {
                IList<MeltDto> meltDtos = meltingAppService.GetActiveMelts();

                Dispatcher.Invoke((ThreadStart)delegate
                {
                    foreach (MeltDto availableMelt in meltDtos)
                    {
                        MeltsAvailable.Add(availableMelt);
                    }
                    OnPropertyChanged("MeltsAvailable");

                    eventAggregator.GetEvent<BusyEvent>().Publish(false);
                    eventAggregator.GetEvent<StatusMessageEvent>().Publish(
                        new StatusMessage("Melts loaded", MessageSeverity.Low));
                });
            }
            catch (ApplicationException ex)
            {
                log.Error("An error occurred in MeltsViewModel when attempting to load melts", ex);

                Dispatcher.Invoke((ThreadStart)delegate
                {
                    MeltsAvailable.Clear();

                    eventAggregator.GetEvent<StatusMessageEvent>().Publish(
                        new StatusMessage("Melt data could not be loaded because an error occurred; " +
                            "see the application log for detail", …