RadMaskedTextInput onmouse over border color

Hello Mauricio,

The Border that you see on MouseOver is colored by the corresponding MouseOver VisualState inside the default ControlTemplate of the RadMaskedInputBaseStyle. As you might know we support several maskedinput controls described in this help topic and all of them inherit the mentioned RadMaskedInputBaseStyle when it comes to visual appearance. 

So what you need to do is modify the MouseOver Visual State of the RadMaskedInputBaseStyle so that you change the Border color with one you prefer. The default control template of the control can be extracted either manually (if you are using implicit styles theming mechanism and NoXAML binaries) or with the help of VisualStudio designer or Expression Blend. Both approaches are demonstratedhere.

I see that you are new to the way we style our controls and for the purpose I highly recommend that you review our Styling and Appearance documentation section that will make you familiar with the styling mechanisms and theme specifics we use.

Let me know if you need any further assistance with customizing the control template.

Regards,
Evgenia
Telerik