public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            if (this.TabBarController != null)
            {
                this.TabBarController.TabBar.Hidden = true;
            }



            //Ensure database refresh
            //this.NavigationItem.SetRightBarButtonItem(
            var refreshButton = new UIBarButtonItem(UIBarButtonSystemItem.Refresh, async(sender, args) =>
            {
                if (Reachability.IsHostReachable(Settings._baseDomain))
                {
                    LoadingOverlay loadingIndicator = new LoadingOverlay(this.View.Frame);
                    this.View.AddSubview(loadingIndicator);
                    // button was clicked
                    List <Ad> adList = new List <Ad>();


                    Ad.DeleteAdsByClassification(SelectedClassification);
                    adList = (await Ad.GetAdsByClassificationAsync(SelectedClassification)).ToList();


                    this.ModelController.LoadModalController(adList, SelectedClassification);

                    var firstViewController = ModelController.GetViewController(0, false);
                    var viewControllerArray = new UIViewController[] { firstViewController };
                    PageViewController.SetViewControllers(viewControllerArray, UIPageViewControllerNavigationDirection.Forward, true, null);

                    loadingIndicator.Hide();
                }
                else
                {
                    HelperMethods.SendBasicAlert("Connect to a Network", "Please connect to a network to refresh these ads");
                }
            });
            //, true);

            //start implementing search feature
            var searchButton = new UIBarButtonItem(UIBarButtonSystemItem.Search, (sender, e) =>
            {
                var errorMessage = "";
                if (ModelController != null && ModelController.adList != null && ModelController.adList.Count > 0)
                {
                    var adList = ModelController.adList;

                    SearchResultsViewController searchResultsViewController = new SearchResultsViewController();

                    searchResultsViewController.SearchResultsAdList = adList;
                    searchResultsViewController.Classification      = SelectedClassification;
                    searchResultsViewController.AdSelectedAction    = delegate
                    {
                        var pageViewController         = this.PageViewController;
                        var magFlipBoardViewController = this;



                        Ad ad = new Ad();

                        ad = searchResultsViewController.SelectedAd;

                        LoadingOverlay loadingIndicator = new LoadingOverlay(this.View.Frame, "Loading Aircraft");
                        this.View.AddSubview(loadingIndicator);

                        var modelController     = this.ModelController;
                        List <Ad> searchAddList = new List <Ad>();

                        Task.Run(async() =>
                        {
                            searchAddList = (await Ad.GetAdsByClassificationAsync(ad.Classification)).ToList();

                            //get ads with this name and move them to the from of the liste
                            List <Ad> similarAdList = new List <Ad>();

                            similarAdList = searchAddList.Where(row => row.Name == ad.Name).OrderBy(r => r.IsFeatured).ToList();

                            //similarAdList.Remove(ad);


                            for (int i = 0; i < similarAdList.Count(); i++)
                            {
                                searchAddList.Remove(similarAdList[i]);
                                searchAddList.Insert(0, similarAdList[i]);
                            }

                            //similarAdList.Remove(ad);
                            //searchAddList.Insert(0, ad);


                            var index            = searchAddList.FindIndex(x => x.ID == ad.ID);
                            var item             = searchAddList[index];
                            searchAddList[index] = searchAddList[0];
                            searchAddList[0]     = item;

                            InvokeOnMainThread(() =>
                            {
                                modelController.LoadModalController(searchAddList, ad.Classification);
                                loadingIndicator.Hide();
                                var initialViewController = modelController.GetViewController(0, false);
                                var searchViewControllers = new UIViewController[] { initialViewController };
                                pageViewController.SetViewControllers(searchViewControllers, UIPageViewControllerNavigationDirection.Forward, true, null);

                                HelperMethods.SendBasicAlert("", "Aircraft arranged based on search selection");
                            });
                        });
                    };
                    this.PresentViewController(searchResultsViewController, true, null);
                }
                else
                {
                    errorMessage = "Oops... There was a problem. Aircraft ads are not yet loaded.";
                }
                if (errorMessage != string.Empty)
                {
                    HelperMethods.SendBasicAlert("Alert", errorMessage);
                }
            });


            List <UIBarButtonItem> navButtonList = new List <UIBarButtonItem>();

            navButtonList.Add(searchButton);
            navButtonList.Add(refreshButton);


            this.NavigationItem.SetRightBarButtonItems(navButtonList.ToArray(), true);

            ModelController = new ModelController(SelectedClassification);

            // Configure the page view controller and add it as a child view controller.
            //UIPageViewControllerSpineLocation.Min
            PageViewController = new UIPageViewController(UIPageViewControllerTransitionStyle.PageCurl, UIPageViewControllerNavigationOrientation.Horizontal, UIPageViewControllerSpineLocation.Min);
            PageViewController.WeakDelegate = this;

            var startingViewController = ModelController.GetViewController(0, false);
            var viewControllers        = new UIViewController[] { startingViewController };

            PageViewController.SetViewControllers(viewControllers, UIPageViewControllerNavigationDirection.Forward, false, null);

            PageViewController.WeakDataSource = ModelController;

            AddChildViewController(PageViewController);
            View.AddSubview(PageViewController.View);

            UINavigationController magazineNavigationController = (UINavigationController)Storyboard.InstantiateViewController("MagazineNavigationViewController");
            float heightTopNavBar      = (float)magazineNavigationController.NavigationBar.Frame.Size.Height;
            float statusBarHeight      = (float)UIApplication.SharedApplication.StatusBarFrame.Height;
            float totalStatusBarHeight = heightTopNavBar + statusBarHeight;
            var   pageViewRect         = new CGRect(0, totalStatusBarHeight, View.Bounds.Width, View.Bounds.Height - totalStatusBarHeight);

            PageViewController.View.Frame = pageViewRect;

            PageViewController.DidMoveToParentViewController(this);

            // Add the page view controller's gesture recognizers to the book view controller's view so that the gestures are started more easily.
            //View.GestureRecognizers = PageViewController.GestureRecognizers;

            if (NavigateDirectlyToAdId != null && NavigateDirectlyToAdId != string.Empty)
            {
                LoadingIndicator = new LoadingOverlay(this.View.Frame, "Loading Aircraft", false);
                this.View.AddSubview(LoadingIndicator);
            }
        }