C#•4y ago

Nullable strings in .net 6

So I'm a little bit new to .NET 6 coming from .NET framework.

Do we have to make a

string

string

string?

string?

in .NET6 and above if it's nullable or can we ignore it? Say I have a parameter

void Foo(string str = null)

void Foo(string str = null)

, I get warned by rider because it says it's a null literal in a non-nullable reference type but it compiles just fine. Is it best practice to have the strings declared like

string?

string?

when nullable

So in the end, we use

string

string

when it wont ever be null and

string?

string?

when it is nullable in .net 6?

Angius•10/20/22, 3:28 AM

Just... use

string?

string?

Angius•10/20/22, 3:29 AM

Since .NET 6, reference types are non-nullable by default

Angius•10/20/22, 3:29 AM

So their nullability needs to be explicitly denoted by that

PuckOP•10/20/22, 3:38 AM

Okay thanks