Question

How can I find out if a Linq to SQL entity has grandchildren or not?

Pseudo-code below:

Return From p In dc.Processes Where p.Signers.Count > 0 and p.Signers.Signatures.Count > 0

Obviously I can’t run the code above but I need to make sure that all the returning Processes have at least one Signer and that all of those Signers have at least one Signature.

TIA!

Answer 1

Something like this should work.

… VB.Net …

Return From p In dc.Processes _
       Where p.Signers.Any(Function(s) s.Signatures.Any()) _
       Select p

… C# …

return  from p in dc.Processes
        where p.Signers.Any(s=>s.Signatures.Any())
        select p;