from discussion :
https://wpftoolkit.codeplex.com/discussions/447813
Maybe add an option to control the behavior.
------------
3) This may just be a personnal preference, but if you have a DecimalUpDown with an increment of 0.1 which currently holds 0.005 (by typing). Increment should go to 0.1, 02, 0.3 etc and decrement should go to 0.0, -0.1, -0.2
https://wpftoolkit.codeplex.com/discussions/447813
Maybe add an option to control the behavior.
------------
3) This may just be a personnal preference, but if you have a DecimalUpDown with an increment of 0.1 which currently holds 0.005 (by typing). Increment should go to 0.1, 02, 0.3 etc and decrement should go to 0.0, -0.1, -0.2