Populate data in C# entity from different tables

Question

I've three tables:

Car

Parts

SubParts

Now I want to get data from all the three tables, which is easy by performing inner join I can easily get that. My SQL query is

Select C.Id AS CarId,C.Name AS CarName
, P.Id AS PartsId,P.Name AS PartsName
, SP.Id AS SubPartsId,SP.Name AS SubPartsName 
from Car C
INNER JOIN Parts P on C.Id=P.CarId
INNER JOIN SubParts SP on P.Id=SP.PartsId

In C# I've same entities with same properties as that of table columns and the same name as that of the table, now I want to populate data from a single query in three different entities without iterating each record returned from SQL query. Is there any that can be done in using ADO.NET or Enterprise Library(more preferable).

Answer 1

Use the join from LINQ.

var innerJoinQuery =
    from car in cars
    join part in parts on car.Id equals part.CarId
    join subPart in subParts on part.Id equals subPart.PartId
    select new {
        CarId = car.Id, 
        CarName = car.Name,
        PartsId = part.Id,
        PartsName = part.Name,
        SubPartsId = subPart.Id,
        SubPartsName = subPart.Name
    };