Question

I have the following entity structure:

public class Party {     public Int32 PartyId { get; set; }     public List<PartyRelationship> RelationShips { get; set; } }  public class PartyRelationship {     public Int32 PartyId { get; set; }     public Int32 RelatedPartyId { get; set; } } 

Now if I create a generic list of Party objects, such as List, how can I write a LINQ query against the list that will return all of the PartyRelationship objects that have a relationship to a specific PartyId based on the RelatedPartyId? The LINQ query would need to evaluate the RelatedPartyId of all relationships defined for a Party and compare that against a specific PartyId that I am searching for. When a match is found, I would want that specific PartyRelationship object return in the result. BTW, more than one match can occur.

Can anyone provide some insight into how I could do this?

Any help would be appreciated.

Thanks

Answer 1

Do you mean:

    var query = from party in parties // the list                 where party.RelationShips != null // overkill???                 from related in party.RelationShips                 where related.RelatedPartyId == id                 select related;