composite control

[Jason]

Hi

i dont know if this is the correct forum, if not please direct me to the
correct one...Thanks.

I want to build a composite control (.dll) that will return a value or an
array of values. This is a composite control, like the subject says, that
will be called from an ASPX page. i wish for it to return a string or array
of strings as the result, depending on whether the user selected 1 or more
results that the control came up with. the values would be returned when the
user clicks a button ON the composite control.

How?

Thanks alot!
Jason