LINQ JOIN Query Returning String Array

Query:

string[] roles =( from usr in dataBaseEntities.Users
join uir in dataBaseEntities.UserInRoles
on usr.UserId equals uir.UserId
join rl in dataBaseEntities.Roles
on uir.RoleId equals rl.RoleId
where usr.UserId==user.UserId
select new { rl.RoleName }). AsEnumerable().Select(x => string.Format("{0}", x.RoleName)).ToArray();

Output: It will give all the roles assigned to the Particular user based on usedId.