>>Hi everybody,
>>
>>The new question, if I may.
>>
>>1. How can I see the actual code of the system classes?
>
>This only recently became available. It requires VS 2008 to do this automatically, here's a link which goes into detail about how to get it all installed:
>
>http://weblogs.asp.net/scottgu/archive/2008/01/16/net-framework-library-source-code-now-available.aspx
>
>If you don't/can't go that route, download Reflector from www.aisto.com/roeder/dotnet/ - it will let you open any .NET assembly and it will let you view a decompiled version of the source code.
>
>>2. Is the common practice to just trap the exceptions, say, if I want to add a user(s) to the role(s) and some of them are already in that role, I'm currently getting an exception with some helpful message.
>
>Yes, it's standard practice to only trap exceptions which you can handle, which usually isn't just "Exception", but a specific type of exception (or exceptions). Having said that, sometimes you have to capture the generic "Exception" type because no other (more specific exception) type is available.

Thanks a lot for the link to the blog. Wow, yes, I'd love to start using VS2008 instead of VS2005.

2. I'm guessing I need to catch Provider exception and general too. Strange, that MS sample didn't show the correct code, so now I have to do a bit of work myself. <g>

BTW, googling doesn't provide losts of answers here. I guess, this is a relatively new method and probably not many people run into this problem?