Basically, caret is omitted by design. However, the display control is actually a retemplated TextBox, so that you can modify its ControlTemplate with Blend, trying to achieve this result. Unfortunately, as it will be quite the radical change, I cannot guarantee you that the other features of RadCalculator will stay unaffected.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WPF.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>