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Over the past several years web developers have started using JavaScript to make asynchronous postbacks to the web server that only transmit and receive the necessary data; these techniques are commonly referred to as AJAX. Microsoft has released a free AJAX framework for ASP.NET developers named Microsoft ASP.NET AJAX. This article series examines using Microsoft's ASP.NET AJAX framework to build responsive user interfaces.

Although initially dismissed by some professional developers, Visual Studio LightSwitch is evolving with the 2012 release to handle the requirements for modern enterprise applications to scale well, integrate with legacy systems, handle multitenant installations and many concurrent users, and much more, reports Jan Van der Haegen.

Windows 8 Special Issue 2012

The inaugural edition of our Windows Azure Insider column describes how to build a simple cloud-hosted service to support asynchronous clients, then shows you how easy it is to call into a Web service from a Windows Store application to retrieve data.

Today's websites commonly exchange information between the browser and the web server using Ajax techniques. In a nutshell, the browser executes JavaScript code typically in response to the page loading or some user action. This JavaScript makes an asynchronous HTTP request to the server. The server processes this request and, perhaps, returns data that the browser can then seamlessly integrate into the web page. Typically, the information exchanged between the browser and server is serialized into JSON, an open, text-based serialization format that is both human-readable and platform independent.

Adding such targeted, lightweight Ajax capabilities to your ASP.NET website requires two steps: first, you must create some mechanism on the server that accepts requests from client-side script and returns a JSON payload in response; second, you need to write JavaScript in your ASP.NET page to make an HTTP request to this service you created and to work with the returned results. This article series examines a variety of techniques for implementing such scenarios. In Part 1 we used an ASP.NET page and the JavaScriptSerializer class to create a server-side service. This service was called from the browser using the free, open-source jQuery JavaScript library.

This article continues our examination of techniques for implementing lightweight Ajax scenarios in an ASP.NET website. Specifically, it examines how to create ASP.NET Ajax Web Services on the server-side and how to use both the ASP.NET Ajax Library and jQuery to consume them from the client-side.

Business Connectivity Services (BCS) for Microsoft Office and SharePoint helps you bring external data sources into your SharePoint apps. We'll show you how to write a custom .NET Assembly Connector for BCS that lets you read from and write to an OData feed.

Charles Petzold looks into streaming audio on Windows Phone. This occurs through a class derived from MediaStreamSource, which feeds the audio data to the OS's audio player on demand. Petzold shows how to stream audio in the background on Windows Phone OS 7.5.

This code backup your session in byte stream. It is useful when you swith the user or emulate the user and need to clear the current session. you can store this byte stream in newly created session as a session veriable and it is so simple to retrive the old session data from that byte stream. This is very useful when you are using SQL memebership provider and maintaining signin and signout using cookies.

Windows Azure AppFabric Caching service provides an easy-to-use cache in the cloud that you can employ for application data, maintaining session state, and other tasks. We'll show you how to start using the Cache service in your apps today.

In most business applications, you create a common look and feel, data entry pages, and a method for navigating through the application. As you begin to work with HTML5, you will want to build these features and take advantage of the features of HTML5 that can make your applications stand out from the crowd. In this article, you will be presented with several common business Web pages that give you an idea of the power of HTML5 and CSS 3.

Visual Studio Team System (VSTS) provides centralized storage of work item tracking features while MS Project provides rich planning and tracking features. By using them together, you can improve team productivity, minimize data conflicts, and reduce administrative overhead.