Add or Remove a user control

Hi,


I'm looking for some advice on the following:
I have a repeater which is populated on the indexchanged event on a dropdown list.  When a user selects an option from the list, I get a list of questions associated with the option.  Therefore the list changes dependent on the selection made.
One of the items associated with the question is a user control, which can vary based on the question.
For instance;
I select option 1 from a list
The list populates the relevant questions
Q1 - UC1

Q2 - UC1
Q3 - UC2
The user control is based on the question type - it maybe a yes/no control - it maybe a rating control.
What I'm looking for is the best way of manging this dynamic UC.  At the moment, I include all controls on the form and make some invisible.  Another alternative would be to remove unecessary UCs when data is bound.


Probably the best option would be t ...