I'm a bit confused at how to add a message to an error logged programatically with ELMAH.
eg:
public ActionResult DoSomething(int id)
{
try { ... }
catch (Exception e)
{
// I want to include the 'id' param value here, and maybe some
// other stuff, but how?
ErrorSignal.FromCurrentContext().Raise(e);
}
}
It seems all Elmah can do is log the raw exception, how can I also log my own debug info?
You can throw a new Exception setting the original as the inner exception and ELMAH will log the messages for both:
catch(Exception e)
{
Exception ex = new Exception("ID = 1", e);
ErrorSignal.FromCurrentContext().Raise(ex);
}
will show
System.Exception: ID = 1 ---> System.NullReferenceException: Object reference not set to an instance of an object.
I found that I can also do something like:
Elmah.ErrorSignal.FromCurrentContext().Raise(new NotImplementedException("class FbCallback.Page_Load() Request.Url= " + Request.Url));
To log my own messages. Then in when I browse to
http://localhost:5050/elmah.axd
I see my messages as type NotImplementedException. Not very pretty but works.
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