Linq Where value is in Array

Question

IEnumerable<string> periods = new string[] {"ABC", "JKD", "223A"};  var someData = from p in returns                  from d in p.ReturnDet                  where p.Year > 2009                 where d.Period <is in periods array>  

How do I select values where the d.periods are contained in the periods array?

Answer 1

Use the Contains method.

var someData = from p in returns                   from d in p.ReturnDet                   where p.Year > 2009                  where periods.Contains(d.Period);