Question

Say we have a model

public Foo 
{
    string Something {get;set;}
    string SomethingElse {get;set;}
    string AnotherThing {get;set;}
}

What is the most concise way of determining if any of those fields contain any string from a List?

var foo = new Foo 
{
    Something = "If Liverpool don't beat Fulham this evening I will cry",
    SomethingElse = "I hope I have that TekPub membership for Xmas",
    AnotherThing = "I wish NCrunch was a bit cheaper"
};

var keywords = new List<string> { "Liverpool", "glosrob", "stackoverflow" };

Would pass on foo.Something containing the word ‘Liverpool’.

Answer 1

var entriesSet = new HashSet<string>(foo.Something.Split());
entriesSet.UnionWith(foo.SomethingElse.Split());
entriesSet.UnionWith(foo.AnotherThing.Split());

if (entriesSet.Overlaps(keywords)) {
    ...
}