need form controls list at design time

[Kent]

Hello,
I have created a server control and would like to have one of my properties
have a drop down list with the controls on the current page as the choices
at design time, similar to the existing controltovalidate property of
validator controls. I have successfully duplicated this by using the
typeconverter directive. However, I want to have checkboxes also appear in
the list. I expect I have to override some things, but I can't find
exactly what. Any help would be appreciated.

Also, I have seen some examples in C++ or C# - I have tried to convert
them, but Visual Basic doesn't have all of the same objects. Examples in
VB would be appreciated.

Thanks,
Kent