ASP.NET MVC 4 Beta introduced Single Page Applications (SPA), web applications that provide rich functionality to a web page through a client side script. Support is limited, but a basic framework for building data driven web pages using popular JavaScript libraries is provided. This article discusses the SPA project template and parts of a typical SPA application.
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Incorporating Markup Dynamically Using Child Action Methods
In a typical ASP.NET MVC application, the controller sends model data to the view and the view then renders the data in the required form. Bipin Joshi shows you how child action methods can be used to render markup dynamically.
Working with Asynchronous Operations in ASP.NET 4.5 Web Forms
Asynchronously running code can improve the overall performance and responsiveness of your web application. In ASP.NET 4.5 web forms applications you can register asynchronous methods with the page framework. The ASP.NET page framework and .NET 4.5 asynchronous programming support then executes the operations in asynchronous fashion. This article shows how this can be done.
Using JSONP in ASP.NET MVC
For security reasons browsers don't allow cross-domain communication. However, in some legitimate situations cross-domain communication becomes necessary. A common work-around for this restriction is to use JSON with Padding or JSONP. In this article you will learn how JSONP can be used in an ASP.NET MVC application.
Handling Exceptions in ASP.NET Web API
Unhandled exceptions in the Web API controller class are often indicated as HTTP status code 500, i.e. Internal Server Error. This generic error message is of little use to the client. Bipin Joshi explains how to use Web API to fine tune and customize the HTTP errors that are sent to the client browser.
Using Unobstructive Validation in ASP.NET 4.5 Web Forms
Earlier releases of ASP.NET validation controls depended upon JavaScript, emitted by the ASP.NET web form framework. Unobstructive validation makes use of the data-* attributes of HTML5 for validation purposes. Bipin Joshi shows you how the new unobstructive validation features work for Web Forms.
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MFC Integration with the Windows Transactional File System (TxF)
The Transactional File System (TxF), which allows access to an NTFS file system to be conducted in a transacted manner through extensions to the Windows SDK API. MFC 10, has been extended to support TxF and related technologies. This support allows existing MFC applications to be easily extended to support kernel transactions.
.NET Framework: Collections and Generics
The original release of the .NET Framework included collections as .NET was introduced to the Microsoft programming world. The .NET Framework 2.0 introduced generics to complement the System.Collections namespace and provide a more efficient and well performing option. Read on to learn more...

Building a Picture Preview Pane into an OpenFileDialog with VB.NET 2010 - Part 2
Hannes du Preeze shows you how to add a preview of a selected picture to an OpenFileDialog. Part 2 of this article focuses on the user interface and user interaction with the preview pane.

Top 7 Eye-Catchers of Visual Studio 2012
With the RTW of the Visual Studio 2012 IDE in August, Microsoft included some new features and nice enhancements. Read on to learn the top 7 items that caught one developer's eye.