Problem with TextwriterTraceListener - DOTNET

Hello CS,

From your description, you're programmatically register a custom
TraceWriter(derived from TextTraceWriter) in ASP.NET application in
Applicaiton_Start event, however, after deploy on a new windows 2003 server
box, you found that custom trace writer not work, correct?

I've also performed some tests on my side, I've tested create and
registering a custom TextTraceWRiter in applicaiton_start event and deploy
the application on both XP and 2003 server boxes, both of them work.
Therefore, I think this approach itself should be supported and reasonable.
My code in Application_Start(global.asax) is also very straightforward:

void Application_Start(object sender, EventArgs e)
{
ClassLibrary1.CustomTextTraceWriter cttrace = new
ClassLibrary1.CustomTextTraceWriter(@"E:\temp\log_temp\dynamic_trace_log.txt
");
cttrace.Name = "dynamic_trace_writer";
System.Diagnostics.Trace.Listeners.Add(cttrace);
}

For the problem you met, I think it is likely due to something incorrectly
with the server environment. To first isolate the problem symptom, I would
suggest you perform the following tests:

** Since ASP.NET 2.0 web site support precompiled and non-precompiled
deployment model. You can try both approaches to deploy your web
application on that server to see whether it works

** You can create a new ASP.NET 2.0 web application which mainly contains
the trace writer registering and using code to see whether it also suffer
the problem on that server.


for checking the regisered trace listeners, currently I simply loop through
and printout all the registered listeners in a page's code. e.g.

========

protected void Button1_Click(object sender, EventArgs e)
{
foreach (TraceListener listener in
System.Diagnostics.Trace.Listeners)
{
Response.Write("<br/>" + listener.Name + ": " +
listener.GetType());
}
}
===========

You can also put such a simple page to verify the trace listner collection
of the running application.

If you have any other finding or anything I've missed, please feel free to
post here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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