CODEWITHSUNDEEP
c#
Nishant Kumar
Nishant Kumar

Reputation: 6083

type changing in c#

hi all as i know that we can change value type in referance type by boxing and unboxing concept. so i want to ask that enum is a value type so can we change it in referance type ? like int a =5 is a value type we can convert it as referance type ,can we do same thing with enum;

Upvotes: 0

Views: 102

Answers (2)

Johann Blais
Johann Blais

Reputation: 9469

Yes it is possible to box an enum because the underlying value is a numeric value. You may also change its underlying type by using the following syntax:

public enum Test : byte
{ /* Values */ }

Please note that the byte type is useful in case you want to use the enum values as flags

Upvotes: 0

Jon Skeet
Jon Skeet

Reputation: 1500535

Your question is somewhat unclear, but yes, you can box enum values in the same way as other value types. One interesting point is that you although the boxed enum value retains the appropriate enum type, you can unbox from an enum to its underlying type, or vice versa:

using System;

enum Color { Red, Green, Blue }

class Test
{
    static void Main()
    {
        Color c = Color.Blue;
        object o = c;        
        int i = (int) o;
        Console.WriteLine(i); // Prints 2

        i = 1;
        o = i;
        c = (Color) o;
        Console.WriteLine(c); // Prints Green
    }
}

Upvotes: 3

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