According to http://www.telerik.com/versionnotes.aspx?id=2079, RadNumericUpDown, Disabled visual state is on the What's Fixed list. In the previous release and/or with SL2, it would be disabled, although it never looked disabled.
Now, what I see is that it comes up disabled, and grayed out (as expected), but enabling it does not un-gray it until the mouse comes over the actual control. Likewise, when I set it to disabled it does not gray out, although it is disabled. It's almost worse than before.
Note that the IsEnabled is using
IsEnabled="{Binding Path=ControlEnabled, Mode=OneWay}"
to control the setting.
This is with SL3 and Telerik 812
Tim
Now, what I see is that it comes up disabled, and grayed out (as expected), but enabling it does not un-gray it until the mouse comes over the actual control. Likewise, when I set it to disabled it does not gray out, although it is disabled. It's almost worse than before.
Note that the IsEnabled is using
IsEnabled="{Binding Path=ControlEnabled, Mode=OneWay}"
to control the setting.
This is with SL3 and Telerik 812
Tim