MVVM Helpers (Metro) is a library of helpers for Windows 8 / Metro to implement the MVVM design pattern, it also includes extension methods, Blend behaviors (with a version of System.Windows.Interactivity) and general .NET classes to aid in the development of Metro-based applications.

Microsoft Expression Blend 4 includes new built-in behaviors, which are reusable pieces of packaged code that can be dragged onto any object, and then fine-tuned by changing their properties.

Microsoft Expression Blend 4 includes new built-in behaviors, which are reusable pieces of packaged code that can be dragged onto any object, and then fine-tuned by changing their properties.

MVVM Helpers is a library of helpers for WPF to implement the MVVM design pattern, it also includes several Blend behaviors, attached behaviors, extension methods and general .NET classes to aid in the development of WPF applications.

Unofficial package of all Blend 5's Interactivity libraries

Microsoft Expression Blend 4 Microsoft.Expression.Interactions.dll & System.Windows.Interactivity.dll for WPF

Microsofts expression blend SDK for WPF

With thinktecture UIAnnotations you can declarative attach visual Adorners and Expression Blend Behaviors to your user interfaces, including smart tags, editor toolbars and visual state markers for required fields, edit states and more. It also can automatically attach adorners to elements while reflecting the Data Annotations of the associated dat... More information

Blend Behaviors to help designer-developer collaboration for WPF, Silverlight and Windows Phone 7 as outlined in the article "A Designer Friendly Approach to MVVM" at http://www.silverlightshow.net/items/A-Designer-friendly-Approach-to-MVVM-Part-I.aspx.

A collection of universally useful XAML value converters, behaviors, and styles.

Usage sample for the Response.MVVM package.

An implementation of the triggers functionality that was available in Silverlight but is missing WinRT XAML. Supports event and property based triggers with storyboard, state and command actions. Actions can have conditions applied to them so they only fire under certain conditions.

Barcode Professional for Windows Phone generates high quality vector-based Linear, Composite and 2D Symbologies. Features: - Linear & 2D Barcodes - data-binding support, raster image exportation (WriteableBitmap), Barcode rotation (0, 90, 180, 270 degrees), Full design-time support Visual Studio 2010, Visual Studio Express Editions (Visual Basi... More information

Cocktail is a blend of three popular frameworks: Caliburn.Micro + DevForce + Entity Framework. Line of business applications need to query and save database data, model the data as objects with business logic, and present those objects to the end user. Cocktail takes care of these fundamental responsibilities with loosely coupled, open source, and... More information

WinRT XAML does not support behaviors out of the box. This library tries to fill the gap for people who really need behaviors to get cracking in XAML for Windows 8 apps. Version 1.0.2 adds a bit of Blend support; 1.0.3 fixes an issues with behaviors in Popups

Blend of IOC, DI, and Factory Pattern

System.Windows.Interactivity.dll taken from Blend preview.

AppBarUtils provides out-of-box app bar behaviors/triggers/actions for Windows Phone SDK 7.1/8.0. They enable you to do command binding (also binding for other properties) for app bar buttons/menu items, make use of the built-in Blend SDK and 3rd party behaviors, and dynamically show different app bars for different pano/pivot items or based on dif... More information

Cocktail is a blend of three popular frameworks: Caliburn.Micro + DevForce + Entity Framework. Line of business applications need to query and save database data, model the data as objects with business logic, and present those objects to the end user. Cocktail takes care of these fundamental responsibilities with loosely coupled, open source, and... More information

Magellan is a navigation framework for Windows Presentation Foundation. It helps you to build inductive, navigation-oriented applications. This package includes additional support for Blend Behaviors and Transitionals.