WPF-如何从类外部将事件处理程序添加到元素？

Question

I am searching for answer many hours and with no success. There is the way to do that, but every included element has to be static. What is not suitable for me.

I have MainPage class and Tile class. This tile class instantiates few kinds of tiles in MainPage layout. I need to add to some kinds of these tiles Tapped event. This event should modify MainPage elements.

What is the best way to do that? I always end with "non-static warning", as you can see in the code:

public class Tile
{
   public static Grid buttonTile_MapPanel(int rowNum, int colNum)
    {
        Grid mapPanelButton = new Grid();
        mapPanelButton.Background = new SolidColorBrush(Color.FromArgb(255, 50, 50, 50));
        TextBlock title = new TextBlock();
        title.Text = "Mapa";
        title.HorizontalAlignment = HorizontalAlignment.Center;
        title.VerticalAlignment = VerticalAlignment.Center;
        title.Foreground = new SolidColorBrush(Colors.White);
        mapPanelButton.Children.Add(title);

        //this will be signed as error: An object reference is required for non static field...
        mapPanelButton.Tapped += new RoutedEventHandler(MainPage.mapPanelService);

        return mapPanelButton;
    }
}

public sealed partial class MainPage : Page
{
    public void mapPanelService(object sender, RoutedEventArgs e) 
    {
        MapPanel.Margin = new Thickness(0,0,0,0);
    }  
}

Answer 1

Main problem was bad type of handler, which demanded something else than it should.

Correct code: public void dataPanelService(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e) { . . .