Why can't I initialize my fields in my structs?

Question

I am surprised that I can\'t initialize my fields in structs, why is it like that? Like:

struct MyStruct
{
    private int a = 90;
}

but it

Answer 1

That's because your assignment is actually transformed by the compiler to be done in the default constructor. But C# structs don't have default constructors, as you can see in the link posted by Kent Boogaart.