Doing any calculation in the display box of RadCalculatorPicker broke its synchronization with drop-down RadCalculator.
VisualStudio designer hangs when there is a custom control with RadCalculatorPicker declared. This problem should be resolved with lib version 2014.3.1110.
Resolved with lib version 2013.2.1006
Note this works fine when pressing the '.' or ',' keys positioned on the numerical keyboard. You can use this as a workaround.
This problem should be resolved with lib version 2014.3.1110.