Question

I have this piece of code:

    public string[] GetUsergroupRoles(string username)
    {
        var qry = from ug in _entities.Usergroups
               from r in _entities.Roles
               from u in _entities.Users
               where u.Username == username
               group r by
               new
               {
                   r.RoleID
               };

        return qry.ToArray();
    }

I get error “…Data.Models.Role>[]’ to ‘string[]’. An explicit conversion exists (are you missing a cast?)”

whats needed to make it return an array of strings?

/M

Answer 1

Well, you’re creating a sequence of groups (and I’m not sure why you’re using an anonymous type to do so – you should be able to just use group r by r.RoleID).

What string would you expect from each group?