XML : Xamarin Android: How to combine XML and C#?

I am new to programming and I'm using Xamarin Studio on my Mac to create Android applications.

Now, I know how to create buttons, TextViews, etc. in code, but I am having a hard time styling them. Most solutions online use XML to create the views and style them, and then add the XML file like this:

  [Activity(Label = "ButtonStyle", MainLauncher = true, Icon = "@drawable/icon")]  public class Activity1 : Activity  {      protected override void OnCreate(Bundle bundle)      {          base.OnCreate(bundle);          SetContentView(Resource.Layout.Main);      }  }    

You can only add one 'thing' (I don't have a better word for it) to the SetContentView, so I can't decide to do something like:

  SetContentView(Resource.Layout.Main);  SetContentView(MyView);    

Is there a way for me to add views with both XML and C# code?