在Silverlight中工作时，你会错过什么.Net/WPF的特性?

I recently started working with Silverlight and immediately noticed the difference between the Silverlight BCL and the full .Net and WPF. For some of them I've found great solutions posted online by other developers, and others were more complicated. What features/classes were you surprised/disappointed to find absent from the Silverlight class libraries, and what did you do to work around them?I recently started working with Silverlight and