private void showButtons()
 {
     int upMargin = 140;
     int leftMargin = -285;
     for ( int i = 0; i < 26; i++ )
     {
         Button b = new Button();
         b.Height = 60;
         b.Width = 40;
         b.MinHeight = 0;
         b.MinWidth = 0;
         b.Visibility = Windows.UI.Xaml.Visibility.Visible;
         if(vis[i] == 1) b.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
         b.FontFamily = new FontFamily("/Fonts/Segoe.ttf#Segoe Print");
         b.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Center;
         b.VerticalAlignment = Windows.UI.Xaml.VerticalAlignment.Bottom;
         b.Content = alphabets[i];
         b.Name = alphabets[i].ToString();
         b.Click += a_Click;
         Thickness margin = b.Margin;
         margin.Left = leftMargin;
         margin.Bottom = upMargin;
         b.Margin = margin;
         mainGrid.Children.Add(b);
         leftMargin += 85;
         if((i+1)%8 == 0)
         {
             upMargin -= 46;
             leftMargin = -285;
         }
     }
 }

        protected override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            // make sure we listen at the right time to add/remove the back button event handlers
            if(_backButton != null)
            {
                _backButton.Tapped -= OnBackButtonTapped;
            }
            _backButton = GetTemplateChild("SettingsBackButton") as Button;
            if(_backButton != null)
            {
                _backButton.Tapped += OnBackButtonTapped;
            }

            // need to get these grids in order to set the offsets correctly in RTL situations
            if (_contentGrid == null)
            {
                _contentGrid = GetTemplateChild("SettingsFlyoutContentGrid") as Grid;
            }
            _contentGrid.Transitions = new TransitionCollection();
            _contentGrid.Transitions.Add(new EntranceThemeTransition()
            {
                FromHorizontalOffset = (SettingsPane.Edge == SettingsEdgeLocation.Right) ? CONTENT_HORIZONTAL_OFFSET : (CONTENT_HORIZONTAL_OFFSET * -1)
            });

            // need the root border for RTL scenarios
            _rootBorder = GetTemplateChild("PART_RootBorder") as Border;

            // need the content scrollviewer to set the fixed width to be the same size as flyout
            _contentScrollViewer = GetTemplateChild("PART_ContentScrollViewer") as ScrollViewer;
            
        }

        public async Task AsyncTaskUIMethod()
        {
            ExecuteUIThread.RealDelay(1000);

            Button b = new Button();
            _shouldBeSet = "Yep it is set.";
        }

        public void InitializeComponent()
        {
            if (_contentLoaded)
                return;

            _contentLoaded = true;
            Application.LoadComponent(this, new System.Uri("ms-appx:///Tweet.xaml"), Windows.UI.Xaml.Controls.Primitives.ComponentResourceLocation.Application);
 
            pageRoot = (Mu_genotype1.Common.LayoutAwarePage)this.FindName("pageRoot");
            primaryColumn = (Windows.UI.Xaml.Controls.ColumnDefinition)this.FindName("primaryColumn");
            titlePanel = (Windows.UI.Xaml.Controls.Grid)this.FindName("titlePanel");
            itemListScrollViewer = (Windows.UI.Xaml.Controls.ScrollViewer)this.FindName("itemListScrollViewer");
            itemListScrollViewer2 = (Windows.UI.Xaml.Controls.ScrollViewer)this.FindName("itemListScrollViewer2");
            PeerTweets = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("PeerTweets");
            itemListView2 = (Windows.UI.Xaml.Controls.ListView)this.FindName("itemListView2");
            TweetBox = (Windows.UI.Xaml.Controls.TextBox)this.FindName("TweetBox");
            TweetIt = (Windows.UI.Xaml.Controls.Button)this.FindName("TweetIt");
            PinPanel = (Windows.UI.Xaml.Controls.StackPanel)this.FindName("PinPanel");
            itemListView = (Windows.UI.Xaml.Controls.ListView)this.FindName("itemListView");
            PinTb = (Windows.UI.Xaml.Controls.TextBox)this.FindName("PinTb");
            VerifyPinButton = (Windows.UI.Xaml.Controls.Button)this.FindName("VerifyPinButton");
            backButton = (Windows.UI.Xaml.Controls.Button)this.FindName("backButton");
            pageTitle = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("pageTitle");
            pageSubtitle = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("pageSubtitle");
            FullScreenLandscape = (Windows.UI.Xaml.VisualState)this.FindName("FullScreenLandscape");
            Filled = (Windows.UI.Xaml.VisualState)this.FindName("Filled");
            FullScreenPortrait = (Windows.UI.Xaml.VisualState)this.FindName("FullScreenPortrait");
            FullScreenPortrait_Detail = (Windows.UI.Xaml.VisualState)this.FindName("FullScreenPortrait_Detail");
            Snapped = (Windows.UI.Xaml.VisualState)this.FindName("Snapped");
            Snapped_Detail = (Windows.UI.Xaml.VisualState)this.FindName("Snapped_Detail");
            TwitterConnectBtn = (Windows.UI.Xaml.Controls.Button)this.FindName("TwitterConnectBtn");
            RefreshButton = (Windows.UI.Xaml.Controls.Button)this.FindName("RefreshButton");
        }

 private void GetNaviButtonControl()
 {
     if (this.naviButton == null)
     {
         this.naviButton = this.GetTemplateChild("NaviButton") as Button;
     }
 }

        protected override void OnApplyTemplate()
        {
            _frame = base.GetTemplateChild("frame") as Panel;
            _panel = base.GetTemplateChild("panel") as CarouselPanel;

            _arrows = base.GetTemplateChild("arrows") as Grid;
            _left = base.GetTemplateChild("left") as Button;
            _right = base.GetTemplateChild("right") as Button;

            _gradient = base.GetTemplateChild("gradient") as LinearGradientBrush;
            _clip = base.GetTemplateChild("clip") as RectangleGeometry;

            _frame.ManipulationDelta += OnManipulationDelta;
            _frame.ManipulationCompleted += OnManipulationCompleted;
            _frame.ManipulationMode = ManipulationModes.TranslateX | ManipulationModes.System;

            _frame.PointerMoved += OnPointerMoved;
            _left.Click += OnLeftClick;
            _right.Click += OnRightClick;
            _left.PointerEntered += OnArrowPointerEntered;
            _left.PointerExited += OnArrowPointerExited;
            _right.PointerEntered += OnArrowPointerEntered;
            _right.PointerExited += OnArrowPointerExited;

            base.OnApplyTemplate();
        }

        public void StartScore()
        {
            PauseButton.Visibility = Visibility.Visible;

            //int numberOfScores = colors.Count;
            //Chosen = GenerateSize.Next(numberOfScores);
            //levelColor = colors[Chosen];

            ColorButton = new Button();
            ColorButton.Foreground = levelColor;
            ColorButton.BorderBrush = levelColor;
            ColorButton.Background = levelColor;
            ColorButton.Margin = new Thickness(40, 0, 0, 0);
            ScoreBoard.Children.Add(ColorButton);


            levelScoreButtom.Margin = new Thickness(this.ActualWidth * 3 / 4, 15, 0, 0);
            levelScoreButtom.Visibility = Visibility.Visible;
            levelScoreButtom.FontSize = 14;
            levelScoreButtom.Foreground = levelColor;

            livesDisplay.Margin = new Thickness(this.ActualWidth * 3 / 4, 30, 0, 0);
            livesDisplay.Foreground = levelColor;
            livesDisplay.Visibility = Visibility.Visible;
            livesDisplay.FontSize = 14;

            CurrentlevelButton.Foreground = levelColor;
            CurrentlevelButton.Margin = new Thickness(this.ActualWidth * 3 / 4, 45, 0, 0);
            CurrentlevelButton.Visibility = Visibility.Visible;
            CurrentlevelButton.FontSize = 14;

        }

        protected override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            // make sure we listen at the right time to add/remove the back button event handlers
            if (_backButton != null)
            {
                _backButton.Tapped -= OnBackButtonTapped;
            }
            _backButton = GetTemplateChild("SettingsBackButton") as Button;
            if (_backButton != null)
            {
                _backButton.Tapped += OnBackButtonTapped;
            }

            // need to get these grids in order to set the offsets correctly in RTL situations
            //if (_contentGrid == null)
            //{
            //    _contentGrid = GetTemplateChild("SettingsFlyoutContentGrid") as Grid;
            //}
            //_contentGrid.Transitions = new TransitionCollection();
            //_contentGrid.Transitions.Add(new EntranceThemeTransition()
            //{
            //    FromHorizontalOffset = CONTENT_HORIZONTAL_OFFSET // TODO: if left edge need to multiply by -1
            //});
        }

        protected async override void OnNavigatedTo(NavigationEventArgs e)
        {
            var pstudent1 = await todoTable
                       .Where(t => t.username == e.Parameter.ToString()).ToCollectionAsync();
            //newkey = pstudent1[0].username;
            ar[0] = pstudent1[0].eng; ar[1] = pstudent1[0].hin; ar[2] = pstudent1[0].math;
            ar[3] = pstudent1[0].sci; ar[4] = pstudent1[0].ss; ar[5] = pstudent1[0].cs;
            ar2[0] = "English"; ar2[1] = "Hindi"; ar2[2] = "Maths"; ar2[3] = "Science"; ar2[4] = "Social Science"; ar2[5] = "Computer Science";
            Button[] buttons = new Button[] { button, button1, button2, button3, button4, button5 };
            int j = 0;
            for (int i = 0; i < 6; i = i + 1)
            {
                if (ar[i] == true)
                {
                    buttons[j].Content = ar2[i];
                    buttons[j].Visibility = Visibility.Visible;
                    j++;
                }

            }
            var pstudent2 = await todoTable
                       .Where(t => t.username == e.Parameter.ToString()).ToCollectionAsync();
            newkey = pstudent2[0].username;

        }

        protected override async void OnNavigatedTo(NavigationEventArgs e)
        {
            ResultCollection = new ObservableCollection<WiFiNetworkDisplay>();
            rootPage = MainPage.Current;

            // RequestAccessAsync must have been called at least once by the app before using the API
            // Calling it multiple times is fine but not necessary
            // RequestAccessAsync must be called from the UI thread
            var result = await WiFiAdapter.RequestAccessAsync();
            if (result != WiFiAccessStatus.Allowed)
            {
                rootPage.NotifyUser("Access denied", NotifyType.ErrorMessage);
            }
            else
            {
                DataContext = this;

                wiFiAdapters = await WiFiAdapter.FindAllAdaptersAsync();
                int index = 0;
                foreach (var adapter in wiFiAdapters)
                {
                    var button = new Button();
                    button.Tag = index;
                    button.Content = String.Format("WiFi Adapter {0}", ++index);
                    button.Click += Button_Click;
                    Buttons.Children.Add(button);
                }
            }
        }

        public NoteContent(object sender , object sender1)
        {
            this.InitializeComponent();
            item = (Button)sender;
            item1 = (Button) sender1;
            notepadRepository = new NotepadRepository();
            ourNotes = notepadRepository.GetNotes(item.Content.ToString().ToLower());
            notepad = ourNotes[0].notepad;

            foreach (Note note in ourNotes)
            {
                if (note.title == item1.Content.ToString().ToLower())
                    CurrNote = note;
            }
            if (CurrNote != null)
            {
                if (CurrNote.title == "+")
                    CurrNote.title = "New Title";
                NoteAct.Text = CurrNote.content;
                //NoteAct.Document.SetText(new Windows.UI.Text.TextSetOptions(), CurrNote.content);
                NoteName.Text = CurrNote.title;
            }
            AppTitle.Text = notepad;
                foreach (Note note in ourNotes)
            {
                notes.Items.Add(createNoteButton(note.title,note.content));
            }
        }

        //http://blog.jerrynixon.com/2012/06/windows-8-how-to-read-files-in-winrt.html
        //private async void ProjectFile()
        //{
        //    var _Folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
        //    _Folder = await _Folder.GetFolderAsync(@"Assets");
        //    var _File = await _Folder.GetFileAsync(@"Lyon.json");
        //    json = await Windows.Storage.FileIO.ReadTextAsync(_File);
        //}

        public HubPage()
        {
            this.InitializeComponent();

            List<LyonStation> stations = DoWork.DeserializeStations();
            foreach (var station in stations)
            {
                var myButton = new Button();
                //AsyncContext.Run(async () =>
                //{
                //    string js = "";
                //    HttpClient httpClient = new HttpClient();
                //    HttpRequestMessage msg = new HttpRequestMessage(new HttpMethod("GET"), new Uri("https://api.jcdecaux.com/vls/v1/stations/" + station.number + "?contract=Lyon&apiKey=8554d38cbccde6f2ca5db7fdd689f1b588ce7786"));
                //    msg.Content = new HttpStringContent(js);
                //    msg.Content.Headers.ContentType = new HttpMediaTypeHeaderValue("application/json");
                //    HttpResponseMessage response = await httpClient.SendRequestAsync(msg).AsTask();
                //    string s = await response.Content.ReadAsStringAsync();
                //    LyonStation lyonStation = Helper.Deserialize<LyonStation>(s);
                //    pin.Text = lyonStation.available_bikes.ToString() + "/" + (lyonStation.available_bike_stands + lyonStation.available_bikes).ToString();                    
           
                //});
                MapLayer.SetPosition(myButton, new Location(station.latitude, station.longitude));

                myButton.Tapped += Helper.DisplayRibbon(station, myButton);           
                //myButton.PointerEntered += myButton_PointerEntered;
                myButton.PointerMoved += myButton_PointerEntered;
                myButton.PointerExited += myButton_PointerExited;

                myMap.Children.Add(myButton);
            }
        }

        private async void btn_Click(object sender, RoutedEventArgs e)
        {
            await Task.Run(() =>
            {
                for (int i = 0; i < 30000; i++)
                {
                   // str += i.ToString();
                }
            });

            progressring.IsActive = !progressring.IsActive;

            this.txt.Text = num++.ToString();
            if (progressring.IsActive == true)
            {
                btn.Content = "停止菊花";
            }
            else
            {
                btn.Content = "开始菊花";
            }
            Button nb = new Button();
            nb.Content = "新♥";
            nb.HorizontalAlignment
                =HorizontalAlignment.Center;
            stp.Children.Add(nb);
        }

        private async void ButtonValid_Click(object sender, RoutedEventArgs e) {
            Exception lastException;
            try {
                await StorageFolder.GetFolderFromPathAsync(BoxFolderPath.Text);
                return;
            } catch (Exception ex) {
                lastException = ex;
            }

            string text = lastException.Message.TrimEnd(Environment.NewLine.ToCharArray());

            var panel = new StackPanel() {
                Orientation = Orientation.Vertical
            };
            if (lastException is UnauthorizedAccessException) {
                var button = new Button() {
                    Content = "Manage accessable folders"
                };
                button.Click += (a, b) => {
                    ParentPage.App.SplitPage.Navigate<PreferencesPage>(1);
                };
                panel.Children.Add(button);
            }
            panel.Children.Add(new TextBlock() {
                Text = text
            });

            ButtonValid.AttachFlyout(new Flyout() {
                Content = panel
            });
            ButtonValid.ShowFlyout();
        }

        public void InitializeComponent()
        {
            if (_contentLoaded)
                return;

            _contentLoaded = true;
            Application.LoadComponent(this, new System.Uri("ms-resource://spotifyapp/Files/View/CollectionSummaryPage.xaml"));

            CollectionViewSource = (Windows.UI.Xaml.Data.CollectionViewSource)this.FindName("CollectionViewSource");
            LayoutRoot = (Windows.UI.Xaml.Controls.Grid)this.FindName("LayoutRoot");
            OrientationStates = (Windows.UI.Xaml.VisualStateGroup)this.FindName("OrientationStates");
            Full = (Windows.UI.Xaml.VisualState)this.FindName("Full");
            Fill = (Windows.UI.Xaml.VisualState)this.FindName("Fill");
            Portrait = (Windows.UI.Xaml.VisualState)this.FindName("Portrait");
            Snapped = (Windows.UI.Xaml.VisualState)this.FindName("Snapped");
            ScrollViewer = (Windows.UI.Xaml.Controls.ScrollViewer)this.FindName("ScrollViewer");
            CategoryPanel = (Windows.UI.Xaml.Controls.StackPanel)this.FindName("CategoryPanel");
            HeaderTitlePanel = (Windows.UI.Xaml.Controls.Grid)this.FindName("HeaderTitlePanel");
            ItemGridView = (Windows.UI.Xaml.Controls.GridView)this.FindName("ItemGridView");
            ItemListView = (Windows.UI.Xaml.Controls.ListView)this.FindName("ItemListView");
            Title = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("Title");
            Image = (Windows.UI.Xaml.Controls.Image)this.FindName("Image");
            DescriptionText = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("DescriptionText");
            BackButton = (Windows.UI.Xaml.Controls.Button)this.FindName("BackButton");
            PageTitle = (Windows.UI.Xaml.Controls.TextBlock)this.FindName("PageTitle");
        }

        public void ChangeButtonsAmount(int amount)
        {
            ButtonsPanel.Children.Clear();

            for (int i = 0; i < amount; i++)
            {
                TextBlock tempTextBlock = new TextBlock();
                Button tempButton = new Button();
                StackPanel tempPanel = new StackPanel();

                tempTextBlock.Text = (i + 1).ToString();
                tempTextBlock.TextAlignment = TextAlignment.Center;
                tempTextBlock.Width = tempButton.Width;

                tempButton.Name = "AdditionalButton";
                tempButton.Template = ButtonTemplate;
                tempButton.Content = i + 1;
                tempButton.Click += ButtonPressed;

                tempPanel.Children.Add(tempTextBlock);
                tempPanel.Children.Add(tempButton);
                tempPanel.Width = tempButton.Width;

                ButtonsPanel.Children.Add(tempPanel);
                ButtonsPanel.Width += tempButton.Width;
            }
        }

 void myAdd(Button x)
 {
     if (expression.Text == "0")
         expression.Text = x.Content.ToString();
     else
         expression.Text = expression.Text + x.Content.ToString();
 }

        /// <summary>
        /// Initializes a new instance of the <see cref="AppbarContent"/> class.
        /// </summary>
        public AppbarContent()
        {
            this.InitializeComponent();

            searchTextBlock = searchBox;
            this.advanceSearchButton = AdvanceSearchButton;
        }

        private void showPopup_Click(object sender, RoutedEventArgs e)
        {
            // Create some content to show in the popup. Typically you would // create a user control.
            Border border = new Border();
            border.BorderThickness = new Thickness(5.0);

            StackPanel panel1 = new StackPanel();

            Button button1 = new Button();
            button1.Content = "Close";
            button1.Margin = new Thickness(5.0);
            button1.Click += new RoutedEventHandler(button1_Click);
            TextBlock textblock1 = new TextBlock();
            textblock1.Text = "The popup control";
            textblock1.Margin = new Thickness(5.0);
            panel1.Children.Add(textblock1);
            panel1.Children.Add(button1);
            border.Child = panel1;

            MoviePlayer MovieFrame = new MoviePlayer(ref p);

            // Set the Child property of Popup to the border // which contains a stackpanel, textblock and button.
            p.Child = MovieFrame;

            // Set where the popup will show up on the screen.
            p.VerticalOffset = 110;
            p.HorizontalOffset = 0;

            // Open the popup.
            p.IsLightDismissEnabled = true;
            p.IsOpen = true;
        }

        public async void Scan()
        {
            var access = await WiFiAdapter.RequestAccessAsync();
            var result = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(WiFiAdapter.GetDeviceSelector());
            if (result.Count >= 1)
            {
                 nwAdapter = await WiFiAdapter.FromIdAsync(result[0].Id);
                await nwAdapter.ScanAsync();

                sp.Children.Clear();
                foreach (var item in nwAdapter.NetworkReport.AvailableNetworks)
                {
                    StackPanel s = new StackPanel();
                    s.Orientation = Orientation.Horizontal;
                    Button b = new Button();
                    TextBlock t = new TextBlock();
                    t.Text = $"{item.NetworkRssiInDecibelMilliwatts} {item.ChannelCenterFrequencyInKilohertz} {item.IsWiFiDirect} {item.NetworkKind} {item.SecuritySettings.NetworkAuthenticationType} {item.SecuritySettings.NetworkAuthenticationType} {item.SignalBars} {item.Uptime}";
                    b.Content += item.Ssid;
                    
                    b.Click += B_Click;
                    s.Children.Add(b);
                    s.Children.Add(t);
                    sp.Children.Add(s);

                }
            }
        }