Is datetime struct or class in C#? [closed]

Question

I just started c#. But can not figure out DateTime. I know it is a struct but why do I see different ways of initialize it like class sometime.

How is this if it is a struct?

DateTime myValue = DateTime.Now;  // This is struct

DateTime myValue2 = new DateTime(); // This is class with +11 overloads. 

So is there two versions of datetime in c# one is struct and other is class?

Answer 1

It is indeed a structure. To know which type is something, you can do two things :

1) Look at the doc, for DateTime it is clearly indicated in the title
2) Hover over the type. Visual Studio will pop a tooltip :

Structs behave mostly like classes, you can instantiate them with the new operator and they can have methods too. You cannot use the way they are instantiated as a way to tell if something is struct or a class.

Answer 2

A type cannot be a struct and a by-reference type at the same time. Both constructs make a DateTime, which is a value type (also known as the struct).

The difference between the two is that the first produces the value to be copied inside a static property called Now, and the second initializes the value through one of DateTime's 11 constructors.