InfoPath Dev

Hello,

I would like to use the free logging component "Log4Net" (http://logging.apache.org/log4net/index.html) in my own web enabled forms. As I know that I can´t use private member variables in my code I would like to initialize the Log4Net object with a formstate variable.

But unfortunately if I used the following code:

private Log4Net log4Net{
  get {return (Log4Net)FormState["log4Net"];}
  set {FormState["log4Net"] = value;}
}

... and in the "FormEvents_Loading"

Why are you adding it to the FormState? That's what is causing the error. Can you declare a variable in your code and add it to that instead? Something public should work. Not sure why private won't work (please explain where you read that).

Hi Patrick,

... to tell the truth --- I don´t understand what you mean. In my experience it is not allowed to declare a member variable in the form code regardless of 'private' or 'public'. If you declare such a variable for example:

private (or public) Log4Net log4net;

you can´t upload the form in the 'Central administration' in SharePoint cause SharePoint shows an error message while you want upload such a form...

In the meantime I have found the reason why you can´t store the 'Log4Net' object in FormState. It´s because the 'Log4Net' object is not serializable and as FormState implements IDictionary --- it is essential that every variable which you want to store in FormState must be serializable...

Regards,