private void LoadRecentContexts(int limit)
{
lstRecent.Items.Clear();
var contexts = _contextService.GetMostRecent(limit);
foreach (var context in contexts)
{
var lvi = new ListViewItem();
lvi.Text = context.Id.ToString();
lvi.SubItems.Add(context.ContextName);
lvi.SubItems.Add(context.CreationDateTime.ToString());
lstRecent.Items.Add(lvi);
}
}
/// <summary>
/// Populate the context lists.
/// </summary>
/// <returns>False if update has been skipped due to the user selection</returns>
private bool UpdateContextLists()
{
// get new results
var recentContexts = _contextService.GetMostRecent((int)_settings.MostRecentLimit);
var closerContexts = _serviceClient.GetCloserContexts();
List <ContextPreferenceItem> closerContextItems = new List <ContextPreferenceItem>();
foreach (var closerContext in closerContexts.OrderByDescending(c => c.Value))
{
var context = _contextService.GetById(closerContext.ContextId);
if (context == null)
{
continue;
}
var item = new ContextPreferenceItem
{
Name = context.ContextName,
Value = closerContext.Value.ToString(),
ContextId = closerContext.ContextId
};
closerContextItems.Add(item);
}
try
{
// update could take time
// check again for user selection
bool closerSelected = listCloser.Dispatcher.Invoke(
new Func <bool>(
() => { return(listCloser.SelectedItem != null); })
);
bool recentSelected = listRecent.Dispatcher.Invoke(
new Func <bool>(
() => { return(listRecent.SelectedItem != null); })
);
if (!recentSelected && !closerSelected)
{
// update UI
listRecent.Dispatcher.Invoke(new System.Action(
() => { listRecent.ItemsSource = recentContexts; }));
listCloser.Dispatcher.Invoke(new System.Action(
() => { listCloser.ItemsSource = closerContextItems; }));
// update performed
return(true);
}
}
catch
{
// tried to access UI after Dispose()
return(false);
}
// update skipped
return(false);
}
