What is the point of the spy control? I can view the controls properties at design time, why do I need to see them at run time?

Hi Mark,

Thanks for contacting us and for your question.

RadControlSpy tool allows for browsing the element tree and the properties of the different elements of a control at runtime. You can also change the values of the elements' properties and thus see how the properties affect the behavior/visual appearance of the corresponding element. The RadControlSpy is also useful from a developer perspective since it can help to trace down the root style of an element (in other words, which element is the style provider for a given element) etc.

You might find it useful reading our online help regarding the RadControlSpy tool:
RadControlSpy Overview

I hope this is helpful. Do not hesitate to write back in case you have further questions or need assistance.

Regards,
Deyan
the Telerik team