How do you implement the equivalent of SQL IN() using .net

Question

In .net (c# or vb) expressions, how would you implement SQL\'s handy IN() functionality?

i.e. value in (1, 2, 4, 7)

rather than:

value = 1 or value =

Answer 1

if((new int[] {1, 2, 4, 7}).Contains(value))
{
    // Do some work.
}

As others have pointed out, you could create an In() Extension method (I'll keep it generic so you can use it on any type):

public static bool In(T this obj, IEnumerable col)
{
    return col.Contains(obj);
}

So the initial example becomes:

if(value.In(new int[] {1, 2, 4, 7}))
{
    // Do some work.
}