Type safe INotifyPropertyChanged

Usually we pass the property name as string from the setter of properties and raise the INotifyPropertyChanged.PropertyChanged event.This is not type safe as you.There are chances that the end developers may misspell the property name.The below link gives a great idea to make your OnPropertyChanged calls type safe.

http://mfelicio.wordpress.com/2010/01/10/safe-usage-of-inotifypropertychanged-in-mvvm-scenarios/

Using Lambda expression in XAML databinding

When I was in net last week end the below links took my attention.The reason was they explain how can we give lambda expressions in XAML.As a developer you might also wonder how the author did that.
It is by creating a custom markup extension and constructing lambda expressions on the fly.

• WPFix Part 1
• WPFix Part 2 (Binding Extension)
• WPFix Part 3 (Extension Methods)

Thanks to M. Orçun Topdağı for such a smart solution.I need to find out another way to implement this in my current project as that is in Silverlight and Silverlight does't support custom mark-up extensions.