Binding a datagrid to a listbox

[ShadowsOfTheBeast]

hi all
thanks for your help i kinda figured that out minutes
afterwards...but what i am actually trying to do is this:

i have a listbox control that gets its data from another listbox (hence gets
a subset by selecting from the first list box) and i have a datagrid which
has a template column and a bound column, i want to bind the bound column to
this second listbox and then its template column implements a dropdownlist
for every bound column item, now this dropdownlist (in the template column of
the datagrid) i want to bind it to a dataset's datatable

I have already created a dropdownlist that gets the data from a dataset but
how do i implement this whithin the datagrid in a
<templatecolumn><itemTemplate>
i cant seem to do this can you please help?