private static async Task <AgendaViewItemsGroup> CreateLoadStandalone(Guid localAccountId, ViewItemSemester semester, DateTime today)
{
var answer = new AgendaViewItemsGroup(localAccountId, semester, today, trackChanges: false);
await Task.Run(answer.LoadBlocking);
return(answer);
}
///// <summary>
///// Eliminates any items that have become expired (like events that have expired)
///// </summary>
//private void Refilter()
//{
// // Beware - can't do this from a background thread or else it would crash things
// // Hence we actually need to only do this from a UI thread and also ensure to put it in the
// // lock so that background threads using cached item don't get messed up
// Guid[] classIdentifiers = Classes.Select(i => i.Identifier).ToArray();
// DateTime todayAsUtc = DateTime.SpecifyKind(DateTime.Today, DateTimeKind.Utc);
// this.Items.RemoveWhere(i => !ShouldIncludeItem(i.DataItem as DataItemMegaItem, classIdentifiers, todayAsUtc);
//}
private static async Task <AgendaViewItemsGroup> CreateLoadTask(Guid localAccountId, ViewItemSemester semester, DateTime today)
{
var answer = new AgendaViewItemsGroup(localAccountId, semester, today, trackChanges: true);
SemesterItemsViewGroup cached = SemesterItemsViewGroup.GetCached(semester.Identifier);
if (cached != null)
{
// Can perform this without locks since we already know we're on UI thread right now,
// and any modifications to the SemesterItems list would need to be on UI thread to occur
await cached.LoadingTask;
answer.PrepareFromCached(cached);
}
else
{
await Task.Run(answer.LoadBlocking);
}
return(answer);
}
