async Task ExecuteLoadItemsCommand() { if (IsBusy) { return; } IsBusy = true; try { UserTests.Clear(); var items = await GetFriends(); // var items = new List<UserTest>() { new UserTest() { Id = 1, UserId = "vse ok", Text="ok i will go eat" } }; foreach (var item in items) { UserTests.Add(item); } } catch (Exception ex) { Debug.WriteLine(ex); } finally { IsBusy = false; } }