How to simplify an if condition having multiple OR cases [closed]

Answer 1

Although I like Mr Anderson's solution of having an extension method, if you just wanted it done quick and dirty:

        if (new[] { "UCK", "SAN", "AVB", "AVM", "SDS", "DWW", "WQP", "LHG" }.Any(s => myString.Contains(s)))
        {
            mySecondString = "CATEGORY A";
        }

        else if (new[] { "UCT", "SAM", "AHJB", "AVR" }.Any(s => myString.Contains(s)))
        {
            mySecondString = "CATEGORY B";
        }

        else if (new[] { "UKC", "SHZ", "EEB" }.Any(s => myString.Contains(s)))
        {
            mySecondString = "CATEGORY C";
        }

        else
        {
            mySecondString = "CATEGORY D";
        }