Our properties control is a very powerful component. As in Visual Basic or Visual Interdev, it lets you present a set of data, organised in categories, in a list arrangement. What makes it really valuable is not the number of built-in data types handled or its faithful look (class ic or .NET), but its innovative and smart object design. Indeed you can so easily build your own data types and represent them in-place with your own controls. Furthermore, if you need it, each property can point directly to your own data (primitive or complex), making value changes instantaneous. Give it a try: you will be pleased by its ease of use, extensibility and robustness.