Shorthand conditional in C# similar to SQL 'in' keyword

Question

In C# is there a shorthand way to write this:

public static bool IsAllowed(int userID)
{
    return (userID == Personnel.JohnDoe || userID == Personnel.JaneD         


        

Answer 1

I would encapsulate the list of allowed IDs as data not code. Then it's source can be changed easily later on.

List allowedIDs = ...;

public bool IsAllowed(int userID)
{
    return allowedIDs.Contains(userID);
}

If using .NET 3.5, you can use IEnumerable instead of List thanks to extension methods.

(This function shouldn't be static. See this posting: using too much static bad or good ?.)