How do you specify a different base class in .xaml files (Silverlight)?

Question

How can you specify a common base class in .xaml files for seperate Silverlight Page classes? I have a few common properties that I would like to share across pages, but I d

Answer 1

Also: when your base class is in an other assembly (project) you can do this:

xmlns:Custom="clr-namespace:SilverlightApplication1;assembly=[Other.Assembly]"