>>>{Updated} - Solved it
>>
>>Do you really need to be adding these things at runtime?
>>
>>I find it *MUCH* easier (as someone else suggested) to add as much as possible at design time and then just control visibility or change attributes at runtime.
>>
>>This was cake in VFP. ASP.NET is a giant leap backward from VFP.
>
>There could be upwards of 50 of these controls. Dropping 50 controls on a page in design time when onyl one is being used is silly.
>Like I said, I already have it ruunning. I'll post my solution in bit.

Hi,
If you really need options for 50 different controls to be selected dynamically into the same page then there *may* be a case for rethinking the design.
Also bear in mind that although it seems silly it's not (at runtime) *quite* as silly as it sounds - as mentioned elsewhere any control not marked as 'Visible' simply won't be injected into the stream sent to the browser - i.e won't exist....