Overriding enum

Question

I have a set of enum

public enum enums
{
    enum1,
    enum2,
    enum3,
    enum4,
    enum5
}

and in a another class I want to have two objects:

var object1 = new enums();//Here I want an enum of enum1,enum2
var object2 = new enums();//Here I want an enum of enum3,enum4,enum5

is there anyone with an idea on how I can do this?

Could you please explain why you want a single enum, but want to use only half of it? — Hans Keﬆing, May 24 '13 at 08:27
Do you want the objects to only be able to hold those values (restriction) or do you want them to contain all the indicated values at once? There's a difference, of which the first cannot be accomplished in C# — John Willemse, May 24 '13 at 08:31
What does this have to do with overriding? And why are people voting to close as "not constructive" instead of "not a real question"? — Cody Gray - on strike, May 24 '13 at 09:21
Subject was overriding as I thought I will be doing something with new blabl(){....,....,....}; not contructive is their opinion as I faced this and wasn't sure which way to go. and not a real question, maybe to you, but to me it was a question. And by the way why are u bothered answering ? — Jack M, May 24 '13 at 10:10

score 7 · Accepted Answer · edited May 23 '17 at 12:28

7

Use Flags Attribute and you can assign more values:

[Flags]
public enum enums
{
    enum1 = 1,
    enum2 = 2,
    enum3 = 4,
    enum4 = 8,
    enum5 = 16
}

here is good post explaining how to use it: https://stackoverflow.com/a/8480/2043144

More edits:

then your code should look like that:

enums object1 = enums.enum1 | enums.enum2;
enums object2 = enums.enum3 | enums.enum4 | enums.enum5;

to check wether your object1 contains given flag:

if ((object1 & enums.enum1) == enums.enum1) 
{
    //object1 contains enums.enum1 flag
}

edited May 23 '17 at 12:28

Community

answered May 24 '13 at 08:26

gzaxx

1

You need to use the bitwise OR operator. `var object2 = enum3 | enum4 | enum5;` – Alex Wiese May 24 '13 at 08:27
4

from .NET 4.0 onwards you can also use `Enum.HasFlag()` method instead of bitwise AND operator. – Alex Wiese May 24 '13 at 08:31
1

@alexw it is only supproted in .NET 4 and higher and no way to tell which one OP uses. – gzaxx May 24 '13 at 08:32
This doesn't answer OP's question, because there's no limitation for `object2` to use `object2`. – Dennis May 24 '13 at 08:37

1 Answers1