I am trying to do something that I do a lot in Winform programming.  We are using .NET 2.0, Ajax, and Telerik controls.

 In Winform programming, I would define user controls that have UI elements.  For example, the framework for a Dialog box with the proper buttons, validations, and other generic dialog box information.  I would normally create this for most of the major UI elements for many reasons.

 What I would like to do is to do the same thing with the Web User Controls.  While I can inherit the classes, I have not found a way to define and inherit the UI elements.  Am I missing something here or is this not possible? 

 I am using master pages for major UI elements that do not use user controls but there are many places where user controls are the preferred solution.

 Any help is appreciated.