Finding behaviors for Silverlight has become much easier with the Expression Community Gallery. The goal is to have a central place for all things Expression. It’s still young, but gaining steam. Being a big fan of behaviors, I have compiled a list of my top 5 favorite Silverlight behaviors.
For data input, there is nothing like a TextBox that handles all the formatting for you. Jim Fisher has created a behavior that enables you to easily add a mask to a TextBox, ensuring your users aren’t entering garbage. For more information, check out Jim’s post.