One of the uses for Visual Studio's Output window

I am generating some dummy data for testing every time I build and run a program, and I need to look something up every time. Being a lazy programmer, I was wondering if there is a way in Visual Studio to display something during compile time. I found that if execute this code:

System.Diagnostics.Debug.WriteLine("Hello, World!");

Then it will be display along with a bunch of other compilation info in the Output Window. Oh, yeah, Output window in Visual Studio is also extremely useful for displaying XAML binding information.