How can I add simple tracing in C

Question

I want to introduce some tracing to a C  application I am writing  Sadly  I can never really remember how it works and would like a tutorial with reference qualities to check up on every now and then  It should include   App config   Web config stuff to add for registering TraceListeners how to set it up in the calling application  Do you know the   ber tutorial that we should link to   Glenn Slaven pointed me in the right direction  Add this to your App config Web config inside  lt configuration  gt    lt system diagnostics gt       lt trace autoflush  quot true quot  gt         lt listeners gt           lt add type  quot System Diagnostics TextWriterTraceListener quot  name  quot TextWriter quot               initializeData  quot trace log quot    gt         lt  listeners gt       lt  trace gt   lt  system diagnostics gt   This will add a TextWriterTraceListener that will catch everything you send to with Trace WriteLine  etc   DanEsparza pointed out that you should use Trace TraceInformation  Trace TraceWarning and Trace TraceError instead of Trace WriteLine  as they allow you to format messages the same way as string Format  Tip  If you don t add any listeners  then you can still see the trace output with the Sysinternals program DebugView  Dbgview exe

User · Answer

DotNetCoders has a starter article on it: http://www.dotnetcoders.com/web/Articles/ShowArticle.aspx?article=50. They talk about how to set up the switches in the configuration file and how to write the code, but it is pretty old (2002).

There's another article on CodeProject: A Treatise on Using Debug and Trace classes, including Exception Handling, but it's the same age.

CodeGuru has another article on custom TraceListeners: Implementing a Custom TraceListener

User · Answer

I followed around five different answers as well as all the blog posts in the previous answers and still had problems  I was trying to add a listener to some existing code that was tracing using the TraceSource TraceEvent TraceEventType  Int32  String  method where the TraceSource object was initialised with a string making it a  named source   For me the issue was not creating a valid combination of source and switch elements to target this source   Here is an example that will log to a file called tracelog txt   For the following code  TraceSource source   new TraceSource  quot sourceName quot    source TraceEvent TraceEventType Verbose  1   quot Trace message quot     I successfully managed to log with the following diagnostics configuration   lt system diagnostics gt       lt sources gt           lt source name  quot sourceName quot  switchName  quot switchName quot  gt               lt listeners gt                   lt add                     name  quot textWriterTraceListener quot                      type  quot System Diagnostics TextWriterTraceListener quot                      initializeData  quot tracelog txt quot    gt               lt  listeners gt           lt  source gt       lt  sources gt        lt switches gt           lt add name  quot switchName quot  value  quot Verbose quot    gt       lt  switches gt   lt  system diagnostics gt

[c#] How can I add (simple) tracing in C#?

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