This article shows changes and bug fixes from article of Imran Baloch blog - bug Fixes and Changes in ASP.NET MVC 3 Beta  Few days ago when ASP.NET MVC team released ASP.NET MVC 3 Beta. This beta release includes some new features, some changes, some improvements and bug fixes. For detail of this beta release see Announcing NuPack, ASP.NET MVC 3 Beta, and WebMatrix Beta 2. In this article, we can see the most important changes and bug fixes. Seeing and knowing new changes will help you when you start using MVC 3 Beta from MVC 3 Preview 1 or MVC 2 because some properties and some classes are renamed in MVC 3 Beta. On the other hand, seeing and knowing bug fixes shows that how quickly ASP.NET MVC team fixes the bugs discussed in forums, which is appreciable.More...

What is MEF (Managed Extensibility Framework). For example you have an accounting application and you would like to provide a hook (socket) where external vendors can connect (plug) and add invoicing capabilities to the accounting application. For instance you have application which you would want different vendors to connect with their features and extend your application. So the vendors just put the components in the application, the application discovers them and does the connection and extension. The Managed Extensibility Framework (MEF) is a new library in .NET that enables greater reuse of applications and components. Using MEF, .NET applications can make the shift from being statically compiled to dynamically composed. If you are building extensible applications, extensible frameworks and application extensions, then MEF is for you. More...

If you're experiencing frequent “insufficient memory” errors when doing small cut or copy operations in Visual Studio 2010 RTM, please download this patch to see whether it resolves the issue. Scott Gu said in his blog that this is Patch for VS 2010 Find and Replace Dialog Growing. More...

In this article, I will explore new WCF and WF Services features in the .NET 4.0 as well as the new application server capabilities provided by the "Dublin" (AppFabric) extensions. I will use many materials from MSDN and PDC conference. WF4 provides declarative authoring of programs that coordinate work Activities, Runtime and Tooling.

What is Windows Workflow Foundation? A framework for declarative programming or Tools for creating program definitions or A runtime for executing program logic? What is declarative workflow services? Services (WCF) extend the reach of workflows or declarative service authoring and composition? What benefits of declarative service authoring? Declarative flow control – parallel / async / compensation or Automatic state management or just Tracking / visibility. What declarative services ideal for: Long running, multi-interaction processes (e.g. approvals, applications), Coordinating multiple interactions (e.g. aggregation, composition). More...

What mean debugging with IntelliTrace? Visual Studio 2010 Ultimate know the answer, because topic applies to Visual Studio 2010 Ultimate only. IntelliTrace extends and enhances the Visual Studio live debugging experience that you are used to. You still have access to all the Visual Studio debugger features that you are familiar with. IntelliTrace operates invisibly in the background, recording debug information. More...