Question

I have 2 objects that contains generic list properties.
IE :

public class User
{
    public string Sid { get; set; }
    public List<Group> Groups { get; set; }
}

public class Section
{
    public string Sid { get; set; }
    public List<Group> Groups { get; set; }
}

From my BLL I get a generic list of sections
List mySections=SectionDB.getList();

and my User object contains the user Information
User myUser=UserDB.getInfo(sid);

Using linq to objects, is it possible to make a query that retreives all the sections where there is at least one group within the groups user class?

Any help?

Answer 1

from section in mySections
from sectionGroup in section.Groups
where myUser.Groups.Any(userGroup => userGroup == sectionGroup)
select section

i’d rather go for any, as you use the iterator much more efficiently