Easy Debugging in ASP.Net

to output text in a c# application (web or form)

Option #1:
include:
using System.Diagnostics;
private void main()
{
  functionName();
}
then outside of your functions
[Conditional("DEBUG")]
private void functionName()
{//this only displays when using debug compilation
  Console.WriteLine("debugging text output");
}
Option #2:
protected void Page_Load(object sender, EventArgs e)
{
  #if DEBUG
  //only displays when web.config compilation debug="true"
  Console.SetOut(Response.Output);
  Console.WriteLine("WEBSITE IS IN DEBUG MODE!");
  #endif
}
this is a good idea for web applications to remind you to disable debugging when you push a site to your production server.