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 = 2 or value = 4 or value = 7

Answer 1

using System;
using System.Linq;

static class SqlStyleExtensions
{
    public static bool In(this string me, params string[] set)
    {
       return set.Contains(me);
    }
}

Usage:

if (Variable.In("AC", "BC", "EA"))
{

}