Vibrant discussion about CSLA .NET and using the framework to build great business applications.
Is there a way to create dependecy properties in CSLA 4.1 ?
Dependency properties are part of WPF, Silverlight, WF, and WinRT. They aren't part of CSLA, and shouldn't be implemented in the business layer (because they are a presentation layer concept).
So generally the answer is no - you don't WANT to implement dependency properties in the business layer, and CSLA is all about creating the business layer, so it isn't supported.
You might implement dependency properties in a viewmodel, or in other presentation layer code. But that isn't really the focus of CSLA.
CSLA does have the ViewModelBase class in Csla.Xaml. That class does inherit from DependencyObject, so you can create dependency properties in a viewmodel if necessary.