I can't see any trace output in ASP.NET -

In Visual Studio 2010 I added trace as the page shown here but I do not see any trace output Why, why?

  Public Partial Class _Default: System.Web.UI.Page {Secure Zero Page_load (Object Sender, EventArgs e) {trace.IsEnabled = true; Trace Write ("Hello World"); }}  

Do you have something similar to your web In the config?

& lt; System.web & gt; & Lt; Trace enabled = "true" pageoutput = "true" /> & Lt; /system.web>

Check