public void For([NotNull] ForMethodTwoKeysList <TKey1, TKey2, TValue> methodInnerFor, bool leftToRight = true) { try { llistaClau1.For(((i, tkey1, tkey2) => { return(methodInnerFor(i, tkey1, tkey2, llista1[tkey1])); }), leftToRight); } catch { throw; } }