Comments by Erich Ledesma (Top 5 by date)

Reason for my vote of 1
As Piebald says: The lock is wrong, and that return null statement will prevent from returning the right instance. Your method would return the right value just once. Sorry mate, but you're spending everyone's time, you should pay attention to what people take the time to write to you.

Thanx mate. The idea is always trying to make it as simple as posible. And never doing something for no reasson, meaning you might need to undo it latter.

I agree, it could be generic, and would be usefull. But in most cases you won't need it, and it wouldn't be clear a Join() for something else. In those cases, if you need to join strings for other object types. You could always use a Select() first to convert to string, then join them.

The point is. Is just a matter of taste. I like it this way, but that just me.