Is there any difference between type? and Nullable?

Question

In C# are the nullable primitive types (i.e. bool?) just aliases for their corresponding Nullable type or is there a difference between th

Answer 1

A bool is a value type, therefore it can't contain a NULL value. If you wrap any value type with Nullable<>, it will give it that ability. Moreover, access methods to the value change by additional properties HasValue and Value.

But to the question: Nullable and bool? are aliases.