Sorry if this has been asked before, but I would like a concise answer on the differences between the following two usages. VS seems to accept both of them as valid code.
The only difference is that the first one doesn't work in C# 1. The compiler of C# 2 and later, translates the first one into the second one.
Method groups are implicitly convertible to delegate types with a compatible signature. This feature is called "(Implicit) method group conversion". Sometimes you need the second one to guide overload resolution, but that's not the case here.