private void SaveUICache(NewsgroupAnswersCollection groups)
{
var ui = new UICache();
ui.NewsgroupAnswers = groups;
ui.Save(GetFileName());
// force reloading of list...
_groupView = null;
_groupViewSource = null;
firstTime = true;
RaisePropertyChanged("Newsgroups");
}
private void CmdLoadNewsgroupListClick(object sender, RoutedEventArgs e)
{
cmdLoadNewsgroupList.IsEnabled = false;
ThreadPool.QueueUserWorkItem(delegate(object o)
{
var t = o as MainWindow;
try
{
var idx = 0;
Traces.Main_TraceEvent(TraceEventType.Information, 1, "Start prefetching newsgroup list");
SetPrefetchInfo(t, "Start prefetching newsgroup list", false);
var groups = t._forumsDataSource.PrefetchNewsgroupList(
p => SetPrefetchInfo(t, string.Format("Group {0}: {1}", ++idx, p.GroupName), false));
SetPrefetchInfo(t, string.Format("DONE: ({0} newsgroups)", idx), true);
Traces.Main_TraceEvent(TraceEventType.Information, 1, "Prefetching DONE; {0} newsgroups", idx);
if ((groups != null) && (groups.Count > 0))
{
// Save UI-Cache and refresh
if (!t.Dispatcher.CheckAccess())
{
t.Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Normal,
new Action(
delegate
{
var uic = new NewsgroupAnswersCollection();
uic.AddRange(groups.Select(p => new NewsgroupAnswers()
{
Name = p.GroupName
}).OrderBy(p2 => p2.Name, StringComparer.InvariantCultureIgnoreCase)
);
SaveUICache(uic);
}));
}
}
}
catch (Exception exp)
{
SetPrefetchInfo(t, string.Format("Exception: {0}", NNTPServer.Traces.ExceptionToString(exp)), true);
}
}, this);
}
