Silverlight 2 Changes

Between Silverlight 2 Beta 2 & Silverlight 2 RTW, there were a few changes and additions.  Here’s a brief rundown on the areas I directly worked on. 

The overall breaking change list can be found here.

Control Model Silverlight 2 RTW Updates

• generic.xaml lives in themes directory
  • For WPF compat, we’re now looking for generic.xaml at themesresources.xaml.  It still needs to be built as an assembly resource.
• VisualTransition.GeneratedDuration
  • The VisualTransition.Duration’s property name has changed.  It is now called VisualTransition.GeneratedDuration.
  • This value will only impact the duration of generated transition animations.  It has no affect on the VisualTransition.Storyboard animations.
• VisualTransition.Storyboard must be defined inline
  • You cannot set VisualTransition.Storyboard to be a storyboard resource.  It needs to be defined as content of the <VisualTransition>.

HTTP Networking Silverlight 2 RTW Updates

• Cross-scheme HTTP <-> HTTPS calls are allowed with a cross domain file.
  • See my Networking Tutorial for more details
• Sub-domain wildcards are allowed within a clientaccesspolicy.xml cross domain file
  • See my Networking Tutorial for more details
• Setting the Content-Type is always allowed on cross domain POSTS
  • Of course, the cross domain POST itself needs to be allowed by the service’s cross domain policy file.
  • All other headers still need to be explicitly allowed in the service’s cross domain policy file.