Question

I have two datatables and I want to to make a Cartesian mapping between the two datatables, using LINQ.

For example if I have Two datatables DT1 ,DT2:

DT1 :

1   A
2   B
3   C

---

DT2 :

1   D
2   E
3   F

---

I want the result:

    A    D
    A    E
    A    F
    B    D
    B    E
    B    F
    C    D
    C    E
    C    F

Answer 1

Try this:

var newDatatable = from p1 in dt1.AsEnumerable()
                   from p2 in dt2.AsEnumerable()
                   select new {p1, p2};

Then fill newDatatable into a new DataTable.