Would be great to have a SingleClick and SingleClickText property for Cancel, Next and Finish buttons on the RadWizard in the same manner as normal RadButtons. Testing a project which is complete except for an issue where the user is able to submit many times by pressing the Finish button in quick succession. Tried this but did not work for me: http://www.telerik.com/forums/prevent-user-from-double-clicking-next-button
In the meantime, the following KB article can be followed for implementing a temporary workaround until the single click option is implemented for the Wizard buttons:
Regards,
Peter Milchev
Progress Telerik