My pageframe class allows for a container class to be instatiated at run time containing the page controls. This is to avoid the instantiation overhead commonly associated with pageframes. I believe this is a recommended technique and is the approach adopted by my third party framework.

On certain occasions, the pages on the pageframes are in effect representations of application classes. One page may have client information, another page vehicle information, another page driver information and so on.

Could anyone advise the best approach to develop these classes in the guise of a .VCX form, so they can be subclassed for specialised purposes, but have them "loaded" in the containers on the page(s) of the pageframes?

I understand that sublclassing "containers" containing controls is not recommended. Apparently, the container is subclassed but not the controls in it (Drew Speedie - FPA some time ago).

I don't even know whether a "container" can contain a form (itself a container). Before I dive headlong in to this, I would very much appreciate some theory/design advice.

TIA