Question

Is there a way to declare a variable as Nullable in c#?

struct MyStruct {             int _yer, _ner;      public MyStruct() {          _yer = Nullable<int>; //This does not work.         _ner = 0;     } } 

Answer 1

_yer must be declare as int? or Nullable<int>.

    int? _yer;     int _ner;      public MyStruct(int? ver, int ner) {          _yer = ver;         _ner = ner;     } } 

Or like this:

    Nullable<int> _yer;     int _ner;      public MyStruct(Nullable<int> ver, int ner) {          _yer = ver;         _ner = ner;     } } 

Remember that structs cannot contain explicit parameterless constructors.

error CS0568: Structs cannot contain explicit parameterless constructors