public void OnNavigatedTo(INavigationParameters parameters) { Random rnd = new Random(); ItemBlock fooItem; for (int i = 0; i < 3; i++) { fooItem = new ItemBlock() { Width = ScreenInfo.GetNewDesingSize(100), Height = ScreenInfo.GetNewDesingSize(100), Color = Color.FromRgba(rnd.Next(256), rnd.Next(256), rnd.Next(256), rnd.Next(256)), ShowLabel = false, }; myItemList.Add(fooItem); } fooItem = new ItemBlock() { Width = ScreenInfo.GetNewDesingSize(300), Height = ScreenInfo.GetNewDesingSize(50), Color = Color.FromRgba(rnd.Next(256), rnd.Next(256), rnd.Next(256), rnd.Next(256)), ShowLabel = true, ShowBoxView = false }; myItemList.Add(fooItem); fooItem = new ItemBlock() { Width = ScreenInfo.GetNewDesingSize(301), Height = ScreenInfo.GetNewDesingSize(200), Color = Color.FromRgba(rnd.Next(256), rnd.Next(256), rnd.Next(256), rnd.Next(256)), ShowLabel = false, }; myItemList.Add(fooItem); for (int i = 0; i < 31; i++) { fooItem = new ItemBlock() { Width = ScreenInfo.GetNewDesingSize(100), Height = ScreenInfo.GetNewDesingSize(100), Color = Color.FromRgba(rnd.Next(256), rnd.Next(256), rnd.Next(256), rnd.Next(256)), ShowLabel = false, }; myItemList.Add(fooItem); } }