I am using the VFP wizards with Visual Modeler to reverse engineer some of my classes.

The problem that I am having is that when I do so, I am having problems with some of my controls. If I have all my controls in the User services, they are not visible when I run the app, and they have a funny looking icon in their places in design mode.

I have gotten it to where they all appear now, but I do not understand the criteria for which of the three tiers each type of class should be in. ie. should all buttons be in user services and all text boxes be in data services? Also, do all buttons have to have an 'oHook' property to work? Are there other controls that need the 'oHook' property?

These are my main questions for now.

Thank you all very much in advance for any help you can give!