Const array of strings [duplicate]

Question

Possible Duplicate:
Declare a Const Array

I need an array of const strings in the class. Something like

public class some_class_t
{
    public const string[] names = new string[4]
    {
        "alpha", "beta", "gamma", "delta"
    };
}

But this code causes an error:

A constant 'names' of reference type 'string[]' can only be initialized with null.

What should I do?

Arrays are mutable. They can't be constant unless they're null. — Joel Etherton
– Joel Etherton, Commented Dec 28, 2012 at 0:48

Peter Mortensen · Accepted Answer · 2017-05-07 13:45:26Z

78

Declare it as readonly instead of const:

public readonly string[] names = { "alpha", "beta", "gamma", "delta" };

edited May 7, 2017 at 13:45

Peter Mortensen

31.4k22 gold badges110 silver badges134 bronze badges

answered Dec 28, 2012 at 0:49

John Woo

265k70 gold badges509 silver badges500 bronze badges

Sign up to request clarification or add additional context in comments.

7 Comments

VSB Over a year ago

more details available at http://stackoverflow.com/a/5142378/1080355

mike nelson Over a year ago

And declare it static so I would use public readonly string[] names = { "alpha", "beta", "gamma", "delta" };

AI Replacement Theory Over a year ago

What mike nelson meant to type was "public static readonly string[] names = { "alpha", "beta", "gamma", "delta" };

Yousha Aleayoub Over a year ago

Why is this accepted? while question was about const not readonly...

z0mbi3 Over a year ago

Anyone know how you could actually do it as a const? rather than a readonly? I would like to reference it from my own custom attribute on a class property, and only a const will do. Thanks

|

Collectives™ on Stack Overflow

Const array of strings [duplicate]

1 Answer 1

7 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

7 Comments

Linked

Related