>>Apparently I did not make myself clear.
>>
>>If I have the class designer open, and I have selected a class in the class designer (say a textbox class), I know that I should be able to drag that icon onto the grid and drop it into a column in the grid.
>>
>>However, I am not able to get this to work.
>>
>>I am NOT interested in the toolbox or the toolbar, I want to know the steps I need to take to make the drag/drop work.
>>
>>Thanks.
>>
>>
>As Boris said, it simply does not work. It's an intuitive thing to expect it to work, and that's why I tried it couple of times myself and I think Dmitry also tried. But this approach does not work.

From class designer you can't insert object into whatever you want AFAIK.
From Class browser - maybe (never tried)