async void FindReplacementsAsync()
{
Replacements.Clear();
replacementsModel.SetReplaced(DisplayedCourses.ElementAt(SelectedCourseIndex).Model);
List <ReplacementModel> result = null;
result = await Task.Run(() => {
try
{
return(replacementsModel.GetReplacementsFromData());
}
catch (DataServiceException e)
{
Debug.WriteLine(e.Message);
ShowAlert();
}
return(result);
});
if (result != null)
{
foreach (ReplacementModel rm in result)
{
Replacements.Add(new ReplacementViewModel(rm));
}
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
lock (this)
{
// close all connections on dispose
CloseConnections();
// empty dictionaries
Connections.Clear();
Replacements.Clear();
}
}