Linq to return ALL pairs of elements from two lists?

Question

Given lists l1 = {1, 2} and l2 = {4, 5, 6 } I want to get a new list that has elements:

rez = { {1, 4}, {1, 5}, {1, 6}, {2, 4}, {2,         


        

Answer 1

You want

l1.Join(l2, a => 1, b => 1, (a, b) => new [] { a, b });