Random element of List from LINQ SQL

Question

I\'m using C# 3.5 and am currently using Linq to get all users from a user table and put them in a list.

Now I would like to return a random

Answer 1

for Entity Framework or Linq 2 Sql, can use this extension method

public static T RandomElement(this IQueryable q, Expression> e)
{
   var r = new Random();
   q  = q.Where(e);
   return q.Skip(r.Next(q.Count())).FirstOrDefault();
}
// persons.RandomElement(p=>p.Age > 18) return a random person who +18 years old
// persons.RandomElement(p=>true) return random person, you can write an overloaded version with no expression parameter