LINQ In Line Property Update During Join

Question

I have two obects, A & B for this discussion. I can join these objects (tables) via a common relationship or foreign key. I am using linq to do this join and I only want t

Answer 1

Add an update method to your ClassA

class ClassA {
  public ClassA UpdateWithB(ClassB objectB) {
    // Do the update
    return this;
  }
}

then use

return from objectA in GetObjectAs()
   join objectB in GetObjectBs()
           on objectA.Id equals objectB.AId
           // update object A with object B data before selecting it
   select objectA.UpdateWithB(objectB);

EDIT:

Or use a local lambda function like:

Func f = ((a,b)=> { a.DoSomethingWithB(b); return a;});
return from objectA in GetObjectAs()
       join objectB in GetObjectBs()
       on objectA.Id equals objectB.AId
       select f(objectA , objectA );