melbolt

i've been on an internship for awhile now as an app developer working in VS .NET and it seems everytime I get an assignment and want to figure out how to do something i start out doing things the hard way only to be later told by someone "you should just use the ... namespace, it will do that for you".

my question:
are there any guides that give an overview of what each namespace deals with? How am I suppose to know what's already there so i quit reinventing the wheel all the time?

thanks