/// <summary>
        /// Attachs to purchase manager.
        /// </summary>
        /// <param name="purchaseManager">Purchase manager.</param>
        public void AttachToPurchaseManager(UIStoryboard Storyboard, InAppPurchaseManager purchaseManager)
        {
            // Save connection to purchase manager
            _Storyboard     = Storyboard;
            PurchaseManager = purchaseManager;

            // Scan sub view controllers
            foreach (UIViewController controller in ChildViewControllers)
            {
                //Console.WriteLine (controller.ToString ());

                // Wireup sub views to the master purchase controller
                if (controller is PurchaseTableViewController)
                {
                    // Found the previous purchase table, save and initialize
                    _purchaseTable = (PurchaseTableViewController)controller;
                    _purchaseTable.AttachToPurchaseManager(_Storyboard, purchaseManager);
                }
                else if (controller is StoreTableViewController)
                {
                    // Found the available products for sale table, save and initialize
                    _storeTable = (StoreTableViewController)controller;
                    _storeTable.AttachToPurchaseManager(_Storyboard, purchaseManager);
                }
                else if (controller is FeaturesController)
                {
                    // Found special features, save and initialize
                    _featuresController = (FeaturesController)controller;
                    _featuresController.AttachToPurchaseManager(_Storyboard, purchaseManager);
                }
                else if (controller is SettingsController)
                {
                    // Found settings, save and initialize
                    _settingsController = (SettingsController)controller;
                    _settingsController.AttachToPurchaseManager(_Storyboard, purchaseManager);
                }
            }
        }
		/// <summary>
		/// Attachs to purchase manager.
		/// </summary>
		/// <param name="purchaseManager">Purchase manager.</param>
		public void AttachToPurchaseManager(UIStoryboard Storyboard, InAppPurchaseManager purchaseManager) {

			// Save connection to purchase manager
			_Storyboard = Storyboard;
			PurchaseManager = purchaseManager;

			// Scan sub view controllers
			foreach (UIViewController controller in ChildViewControllers) {
				//Console.WriteLine (controller.ToString ());

				// Wireup sub views to the master purchase controller
				if (controller is PurchaseTableViewController) {
					// Found the previous purchase table, save and initialize
					_purchaseTable = (PurchaseTableViewController)controller;
					_purchaseTable.AttachToPurchaseManager (_Storyboard, purchaseManager);
				} else if (controller is StoreTableViewController) {
					// Found the available products for sale table, save and initialize
					_storeTable = (StoreTableViewController)controller;
					_storeTable.AttachToPurchaseManager (_Storyboard, purchaseManager);
				} else if (controller is FeaturesController) {
					// Found special features, save and initialize
					_featuresController = (FeaturesController)controller;
					_featuresController.AttachToPurchaseManager (_Storyboard, purchaseManager);
				} else if (controller is SettingsController) {
					// Found settings, save and initialize
					_settingsController = (SettingsController)controller;
					_settingsController.AttachToPurchaseManager (_Storyboard, purchaseManager);
				}
			}

		}