public static void LoadComments(FBEntity Item, ListBox lstComments, Button btnCommentsMore, bool nextpage)
{
string lastid = null;
var offset = 0;
if (nextpage)
{
var current = lstComments.ItemsSource as VirtualizedCollection<Comment>;
if (current != null)
{
lastid = current.Last().Id;
offset = current.Count;
}
}
LoadingManager.Start();
Item.GetComments(list =>
{
ThreadHelper.RunOnUI(() =>
{
var loadmoreenabled = nextpage ? list.Any() : list.Count >= FBDataAccess.LIST_LIMIT_SIZE;
if (lastid.HasValue())
{
var current = lstComments.ItemsSource as VirtualizedCollection<Comment>;
if (current != null)
{
list = new VirtualizedCollection<Comment>(current.Concat(list).Distinct(a => a.Id));
}
}
lstComments.ItemsSource = list;
btnCommentsMore.Visibility = loadmoreenabled.ToVisibility();
btnCommentsMore.IsEnabled = true;
});
LoadingManager.Stop();
}, lastid, offset);
}
private void LoadFriends(string f = null)
{
if (lstFriends_Loading) return;
lstFriends_Loading = true;
LoadingManager.Start();
Item.GetFriends(list =>
{
ThreadHelper.RunOnUI(() =>
{
if (f.HasValue())
{
list = new VirtualizedCollection<User>(list.Where(a => a.Matches(f)));
}
lstFriends.ItemsSource = list;
lstFriends_Loading = false;
LoadingManager.Stop();
lstFriends.Focus();
});
});
}
void LoadWallPosts(bool nextpage = false)
{
DateTime? until = null;
if (nextpage)
{
var current = lstWallPosts.ItemsSource as VirtualizedCollection<FeedItem>;
if (current != null)
{
until = current.Last().Date;
}
}
LoadingManager.Start();
Item.GetWallFeed(list =>
{
ThreadHelper.RunOnUI(() =>
{
var loadmoreenabled = nextpage ? list.Any() : list.Count >= FBDataAccess.LIST_LIMIT_SIZE;
if (until.HasValue)
{
var current = lstWallPosts.ItemsSource as VirtualizedCollection<FeedItem>;
if (current != null)
{
list = new VirtualizedCollection<FeedItem>(current.Concat(list).Distinct(a => a.Id));
}
}
lstWallPosts.ItemsSource = list;
btnWallPostsMore.Visibility = loadmoreenabled.ToVisibility();
btnWallPostsMore.IsEnabled = true;
LoadingManager.Stop();
});
}, until);
}
