Silverlight 4 : Restrict checking of checkbox to box only

I wanted to 开发者_开发技巧know if its possible to disallow checking/unchecking of checkbox on clicking checkbox label and only allow checking/uncecking of the box on the box only.

PS: I want to pull it off without using an additional label for the checkbox i.e I wish to disable check/uncheck of checkbox on the checbox label

checking the template (here), can't see clearly how to do that. Additionally it does not have any NamedPart. For me the easiest way is that you suggested... or create your own checkbox.