Test for multiple values in an if statement in C# [duplicate]

Question

Is there a shorthand syntax in C# to make this:

if ((x == 1) || (x==2) || (x==5) || (x==13) || (x==14))

... shorter? Something like (hypothetically)

if (x in {1, 2, 5, 13, 14})

I "feel" like it exists, I'm just coming up short mentally and Googly. In reality I have to test a bunch of enums frequently and it's just unreadable. I also hate to make a little helper function if the language supports it already.

Thanks in advance!

Edit

There are clever solutions involving lists... but I was hoping for a pure logical construct of some kind. If it doesn't exist, so be it. Thanks!

Answer 1

Try this:

if ((new[]{1, 2, 5, 13, 14}).Contains(x)) ...

Answer 2

Though I think the if statement is fine, and making code brief for breifness's sake is useless, here goes:

First approach, assuming you want to go the LINQ route:

if ((new[]{1,2,5,13,14}).Contains(x)){
}

Second approach, ArrayList

if ((new System.Collections.ArrayList(new[]{1,2,5,13,14})).Contains(x)){
}

Third approach, List:

if ((new System.Collections.Generic.List<Int32>(new[]{1,2,5,13,14})).Contains(x)){
}

But keep in mind all of these add more overhead (and really don't add much as far as readability, given the performance consideration).

oh, and working example of the above.