How to convert nested foreach loops with conditions to LINQ

Question

I\'d like to ask if it is possible to convert below nested foreach loops to LINQ expression.

public interface IFoo
{
  bool IsCorrect(IFoo foo);
  void DoSom         


        

Answer 1

With method syntax you would use this query:

var correctPairs = listA
    .SelectMany(a => listB.Where(b => b.IsCorrect(a)).Select(b => new { a, b }));

foreach (var x in correctPairs)
    x.b.DoSomething(x.a);