http://blogs.msdn.com/nickkramer/archive/2005/08/25/456024.aspxAttached properties were probably the very first technology we invented for WPF. Back in late 2000, before WPF/avalon even existed, Jeff Bogdan and I were doing some prototyping, and we ran into a problem -- every layout had a set of properties that iten-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/nickkramer/archive/2005/08/25/456024.aspx#456097Thu, 25 Aug 2005 10:00:01 GMT91d46819-8472-40ad-a661-2c78acb4018c:456097DavidLast time I looked, DependencyProperty wasn't generic, and there was much casting and boxing of ints and doubles going on. Code would absolutely benefit from a DependencyProperty&lt;T&gt;, but wouldn't also performance? I would just like to hear that you at least measured... <br>Anyway, attached props is a nice concept and I think it could have a place even outside of a UI framework. Maybe add some syntactic sugar in C# 3.0 to make them easier to implement, while you're at it?http://blogs.msdn.com/nickkramer/archive/2005/08/25/456024.aspx#460975Mon, 05 Sep 2005 11:47:15 GMT91d46819-8472-40ad-a661-2c78acb4018c:460975Life, Universe and Everything according to Dirk <br>Image Scaling <br>Attached properties <br>XAML Editing in an Xml Editor - major schema enhancement coming...http://blogs.msdn.com/nickkramer/archive/2005/08/25/456024.aspx#528535Thu, 09 Feb 2006 16:46:06 GMT91d46819-8472-40ad-a661-2c78acb4018c:528535Rob RelyeaA&amp;amp;nbsp;post on the Avalon Forum&amp;amp;nbsp;from Jaffi raised a question <br> <br>WPF is not straight forward. Simple...http://blogs.msdn.com/nickkramer/archive/2005/08/25/456024.aspx#638749Tue, 20 Jun 2006 10:33:06 GMT91d46819-8472-40ad-a661-2c78acb4018c:638749digitalnetbizz's WebLogWhile researching for information about Avalon [for play-n-learn sample&amp;amp;nbsp;app], I realized&amp;amp;nbsp;that...