How to insert data from two ArrayLists in one dataTable

[sart]

Hello.
I have two Lists and i need to insert data from both of them into dataTable in different columns. I tried to do

fullList.addAll(new ArrayList(list1));
fullList.addAll(new ArrayList(list2));

by doing this i can't retrive values in dataTable like first column - list1, second - list2.

can anyone tell me how to do this.

Thanks in advance.