agTweener provides a toolkit for Silverlight designers and developers to achieve animation and transition effects similar to toolkits currently available for Flash/Flex developers by defining transition effects in .NET code and applying these effects to any FrameworkElement. The best way to understand what this is all about is to take a look at some samples. The features and techniques to integrate this library into a Silverlight application have been blogged about in these posts: http://home.exetel.com.au/thesandpit/?p=11 http://home.exetel.com.au/thesandpit/?p=13 agTweener is a c# Silverlight library based on the Tweener Actionscript library for Flash/Flex. A preset list of transition functions based on Robert Penner's easing equations is available. The library has now been updated to support Silverlight 2 Beta 2. The code for all of the samples is also available in the Releases sections.

The ASP.NET AJAX Control Toolkit is a classic set of ASP.NET WebForms extensions that helps you build ASN.NET websites. Now maintained by devexpress.com

Prism provides guidance to design and build rich, flexible, and easy-to-maintain Windows Presentation Foundation and Silverlight.

DeepEarth is an open source, standards oriented Silverlight mapping framework. It provides a rich framework for integrating and visualising spatial layers, services and data.

For a hobby that revolves around dead people, genealogy is remarkably popular: it's the fastest growing scene in North America. And a perfect study for our first Windows Presentation Foundation (WPF) reference application. Our designers employed every trick in the WPF book– styles, resources, templates, data binding, animation, transforms– to present an innovative visualization of the classic family tree, freeing our developers to concentrate on behind-the-scenes features like XPS, Windows Vista "light up", and ClickOnce for WPF.

This is a WPF library containing a powerhouse of controls, frameworks, helpers, tools, etc. for productive WPF development. If you have ever heard of Drag and Drop with Attached properties, ElementFlow, GlassWindow, this is the library that will contain all such goodies.

Out with the old and in with the new... the HackingSilverlight Code Browser is a reference tool for code snippets so that I can not have to remember how todo things. for that matter the tool doesn't really show you how it just has a bunch of code that is tagged and searchable.

This project gives full Intellisense & Debugging capebilites in Javascript for Silverlight 1.0 applications in Visual Studio 2008 Beta2.

The Microsoft Health Common User Interface (CUI) provides Design Guidance and controls which allow a new generation of safer, more usable and compelling health applications to be quickly and easily created. It is aimed at user interface designers, application developers and patient safety experts who want to find out more about the benefits of a standardized approach to user interface design. Patient safety is a critical issue for healthcare organizations worldwide. Microsoft has been working with the National Health Service (NHS) in England to improve patient safety by creating a common look and feel for NHS systems through the NHS Common User Interface (CUI) Programme. This partnership initiative is in conjunction with the UK government agency called NHS Connecting for Health. Microsoft is now publishing the Design Guidance produced through this collaboration and providing the Healthcare community with access to the associated controls.

Chart Library for Silverlight

This is the library of WPF (and not only WPF) control, I missing in Silverlight 2.0.

A framework that allows you to dynamically load Silverlight modules into resizable draggable windows. Framework is easily extended by uploading modules you create or download from others.

Silverlight Library ia a collection of useful classes to help Silverlight 2.0 developers.

Silverlight Slideshow is a light-weight and fully functional image slideshow built using Silverlight 1.0.

Silverlight 2 is great technology, but some of very handy User Controls are still missing. This project provides Tree View user control for Silverlight 2 *NOTE: current code was ported from WPF source code and corresponds to Silverlight 2 RC0

A Silverlight Video player (for Silverlight 2 or higher)

The Unity Application Block (Unity) is officially under new ownership. https://github.com/unitycontainer/unity

An end-to-end reference-quality sample for user-generated video content.

Visual WebGui is a platform for rapid development, quality & secure deployment. It is incorporated with an SDK which is integrative to Microsoft Visual Studio,

Project to create web parts for SharePoint with AJAX and/or Silverlight functionality.