TableAdapter approach

I'm starting an application using a TableAdapter instead of direct sql
calls.
In my table adapter there's already an stored procedure that returns
columns a, b and c.
Now, I added another query, but now I need it to return columns b, c,
d, and f.
As you can see, columns does not match.

When I close the table adapter wizard for adding the query, it warns
me, or well, it informs me about this missmatch and tells me to check
it if that's the correct desire.

I thought this would throw an error, but it doesn't. I have a method
that return a different set of columns from those listed in the
TableAdapter.
Is this approach "correct" ?
If no, what's the proper way to do this ?

Thanks in advance,Any idea ?

Taking a value from one window to another

I want to be able to allow a user to select a word from a list of words, but instead of using a drop down list, I want the user to click a button - which opens a new window containing the list of words, double click on the word (or words) selected, and the value of the word that was double clicked is automatically transferred to a text box in the previous (calling) window. Is this possible in ASP.NET?Passing data back to a parent window is entirely possible via lowly javascript - with or without ASP.NET server technology, but the user interaction method you have decided upon would be a little more unstable across browsers.
window.opener.document.getElementById('textbox1').value = "something";