TextWriterTraceListener

[Guest]

Hello,
I'm trying to insert TextWriterTraceListener to web.config file, but it
fails all the time. This is my web.config file:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.web>
<compilation defaultLanguage="c#" debug="true" />
<customErrors mode="RemoteOnly" />
<authentication mode="Windows" />
<authorization>
<allow users="*" />
</authorization>
<trace enabled="false" requestLimit="10" pageOutput="false"
traceMode="SortByTime" localOnly="true" />
<sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424"
sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes"
cookieless="false" timeout="20" />
<globalization requestEncoding="utf-8" responseEncoding="utf-8" />
</system.web>
<system.diagnostics>
<trace autoflush="true" indentsize="4">
<listeners>
<add name="myListener" type="System.Diagnostics.TextWriterTraceListener"
initializeData="myListener.txt" />
</listeners>
</trace>
</system.diagnostics>
</configuration>

In code behind I try to output something like this:
System.Diagnostics.Trace.WriteLine("Tracing...");

But all the time I get an error:

Parser Error Message: Exception in configuration section handler.

Source Error:

Line 13: <globalization requestEncoding="utf-8" responseEncoding="utf-8" />
Line 14: </system.web>
Line 15: <system.diagnostics>
Line 16: <trace autoflush="true" indentsize="4">
Line 17: <listeners>
Source File: c:\inetpub\wwwroot\TraceListener\web.config Line: 15

Thank you for assistance.

 

[Klaus H. Probst]

Sean,

See if this helps you:
http://www.vbbox.com/blog/2004/05/custom-trace-listeners.html

 

[Eliyahu Goldin]

The concept of tracing in ASP.NET is very different from that in Windows
..NET applications. Tracing in ASP.NET outputs trace information to the
client's browser. System.Diagnostics listeners don't work in ASP.NET. (At
least this is my experience. Will be happy to hear if someone can
demonstrate opposite).

Eliyahu

 

[Guest]

In this section here,
<add name="myListener" type="System.Diagnostics.TextWriterTraceListener"
initializeData="myListener.txt" />

I thought the type attribute suppose to have the format of
type="[Class Name] , [Assembly Name]"

look in your machine.config file and you will see alot of examples of custom
section handlers

 

[Sean Feldman]

Hi,
thatnks, but this didn't help.
I get an exception when web.config is parsed at line that contains
<system.diagnostics>
Can't figure out why. I didn't implement any custom listener, just added
TextWriterTraceListener.
Weird.

Sean.

 

[Sean Feldman]

System.Diagnostics listeners work in ASP.Net.
It was demonstrated by Alik Levin (Microsoft IL) during the last conference.
Unfortunately, I can't figure out why web.config parsering fails on reading
<system.diagnostics> part...

Sean

 

[Sean Feldman]

Hi,
somewhere I read that if you're using assemblies from system.dll, then you
don't have to write type="...". But still, this is not the problem.

In this section here,
<add name="myListener" type="System.Diagnostics.TextWriterTraceListener"
initializeData="myListener.txt" />

I thought the type attribute suppose to have the format of
type="[Class Name] , [Assembly Name]"

look in your machine.config file and you will see alot of examples of custom
section handlers

The concept of tracing in ASP.NET is very different from that in Windows
..NET applications. Tracing in ASP.NET outputs trace information to the
client's browser. System.Diagnostics listeners don't work in ASP.NET. (At
least this is my experience. Will be happy to hear if someone can
demonstrate opposite).

Eliyahu

responseEncoding="utf-8"
/>