Creating Custom Data Tables?

hi
i want to create my own Datatable (i.e.: with my own column header names) therefore i ahve followed the following lines:

DataTable t = new DataTable() t.Columns.add("Index") t.Columns.add("Name")

 
The a Dataset "ds" returns a table that has two four columns custIndex, CustName, CustLocation and CustCreditLimit. I only need to load the first two columns, custIndex as CustName to the create table above.
I tried read the rows in the dataset's table then used the following to create the row

foreach (read reach row in the Dataset table) {    t.NewRow() }

 
But i dont know how to load the data in the dataset's table to the created row, how to i do it?
TY