Bug? Check Mark doesn't show up when Checkbox is disabled

New Nexus 7. I want to disable a check box and set it in code, but when I set Enabled = False the Check disappears.

This behavior happens in designer as well, and color doesn't seem to matter.

I want the users to see it but only certain users can set it.

This is how the native Android checkbox behaves.

Bizarre, Thanks. I just added an event and reverse whatever the user does.

And if I haven't mentioned, thanks for all your help Erel, you are awesome.