I need propertybag.
Jabaco store properties for forms and controls...so PropertyBag must be the interface to store properties values. When a form prepare the controls...reads properties from a list, this list is a PropertyBag. So for implementation of a propertybag isn't need much pain..You have some of properties already. You store position of a user control. So you can store some other properties..You need is a restriction to not allowed using a propertybag for a common control, as these controls have the properties store function from IDE, from properties window.