c# LINQ: how to retrieve a single result

Question

Kind of new to linq,

whats the simplest way to retrieve a single result using linq?

example, my query

var query =
     from c in db.productIn         


        

Answer 1

By using First() or FirstOrDefault()

var query =
    (from c in db.productInfo
     where c.flavor == "Classic Coke" && c.container == "Can"
     select c.co2Target).FirstOrDefault();

Only use Single() or SingleOrDefault() if you know there is only one result, or if you want to fail if there are multiple results.

Answer 2

Use the .Single() or .SingleOrDefault() extension methods.

var query =
     (from c in db.productInfo
     where c.flavor == "Classic Coke" && c.container == "Can"
     select c.co2Target).Single();