Yesterday i was creating custom controls and adding them to a project as a
reference.  Things were great.  As I created a new control it would show up
in the toolbox automatically.
Today, however none of the controls that i reference show up in the toolbox.

I was thinking for learning to write a propertyextender class which would
add some extra attributes to a controls on a form before rendering.
Can i actually do this though? Would a property extender be able to somehow
hook into the rendering life of the form and to add or alter ...

I've been learning how to create custom web controls and have been
having problems with subproperties.
The first problem is that you can not see subproperties using
intellisense.  You can type the subproperty attribute in the tag and it