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Tip#100: Did you know… How to view ASP.NET trace information?

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You can enable ASP.NET tracing either at an Application level or at a page level; see Tip# 77: Did you know… How to enable Page Level Tracing for your ASP.NET pages? for more information.

With the tracing enabled, you can view the trace output in a trace viewer by navigation to trace.axd from the root of your application. For example, if the URL of your application is https://localhost:11423/Website, then the trace viewer can be accessed at https://localhost:11423/WebSite1/trace.axd.

Trace

You can click on the “View Details” link of a requested page to see further information about that specific page.

To write to the trace output, you can add the statment Trace.Write(“This is an action in my page.”) into your code.

The trace request limit and whether the most recent tracing data is kept and shown in the viewer can be specified in the web.config file as follows:

<system.web>
    <trace enabled=”true” mostRecent=”true” pageOutput=”true” requestLimit=”20” />

Anh Phan

SDET, Visual Web Developer

Comments

  • Anonymous
    December 20, 2009
    Good to know.  I've been using ASP.NET tracing information on the page level, but I didn't know I could configure it at the application level in the web.config.

  • Anonymous
    December 20, 2009
    didnt know about that. thanks for the articles

  • Anonymous
    December 21, 2009
    Nice tips to note. Thanks, Thani

  • Anonymous
    December 27, 2009
    how to know about asp script language.

  • Anonymous
    January 06, 2010
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    January 31, 2010
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  • Anonymous
    March 27, 2010
    Good tip! Thanks for sharing.

  • Anonymous
    March 29, 2010
    Thanks for sharing.info useful !!!

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