private async void ListViewOnLoaded(object sender, RoutedEventArgs e)
{
if (!(_listView.ItemsPanelRoot is ItemsStackPanel itemsStackPanel))
{
return;
}
_itemsStackPanel = itemsStackPanel;
_scrollViewer = VisualTreeHelperUtils.Child <ScrollViewer>(_listView);
// This event handler loads more items when scrolling.
_scrollViewer.ViewChanged += ScrollViewerOnViewChanged;
// This event handler loads more items when size is changed and there is more
// room in ListView.
_itemsStackPanel.SizeChanged += ItemsStackPanelOnSizeChanged;
await LoadMoreItemsAsync(itemsStackPanel);
}
private async void btnSend_Click(SplitButton sender, SplitButtonClickEventArgs args)
{
if (isTutorialPlaying)
{
var root = VisualTreeHelperUtils.FindParent <MainPage>(this);
if (root != null)
{
root.TutorialStepDone();
}
}
else
{
IsEnabled = false;
IsLoading = true;
await Task.Run(async() =>
{
// Figure out who will be feedbacked
if (CurrentBatch.Teachers.Count == 0) // If user didn't load teachers we gonna
{
CurrentBatch.Teachers = await Provider.GetFeedbackEntries();
}
var filtered = await GetFilteredTeacher();
var includedTeacher = filtered.Where(x => !CurrentBatch.ExcludeTeachers.Any(p => p.ID == x.ID)).Select(x => SendFeedback(x)).ToList();
int count = includedTeacher.Count;
int ftcount = 0;
while (includedTeacher.Count() > 0)
{
var finishedTask = await Task.WhenAny(includedTeacher);
ftcount++;
await Dispatcher.RunIdleAsync(x => FBStatusCount = $"{ftcount}/{count}");
includedTeacher.Remove(finishedTask);
}
});
IsEnabled = true;
IsLoading = false;
}
}
