I have question, that maybe someone here wouldn\'t mind to help me with. I have lets say 3 datatables, each one of them has the following columns:
size, quantity, amo
As per my understanding you need to show 3 tables data in one html table using asp.net with c#.
I think best you just create one dataset with 3 DataTable object.
Bind that dataset to GriView directly on page load.