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In the world of browser-based development, interoperability is king. Unfortunately, interoperability can be at the expense of performance.

A Single Page Application (SPA) is a different way of building HTML 5 applications from traditional Web page development. Instead of spreading the functionality of your Web applications across a collection of separate Web pages with hyperlinks between them, you instead define a single root page that the user lands on and never leaves as long as they are working with your application. You define client-side logic that switches out the data and chunks of content within that page to allow the user to navigate from logical screen to logical screen without ever leaving the page. This means that the user never sees a full page refresh while using your application. They see portions of the screen change based on their interaction, and those changes can be done in a more fluid way with transitions to enhance the user experience. You can also support using the application while offline by storing data client-side, based on some of the newer APIs of HTML 5. Taking this approach makes an SPA feel very much like a desktop application to the end user.

In this article we will see how to apply basic validations to a model and also we will see how to create custom validations by implementing the ValidationAttribute class or IValidatableObject interface.

Learn about the HandleError filter and discuss about the different exception handling mechanisms that will fit to an MVC application.

Somebody was asking in the Sybase newsgroups “should I make the commitment to PB.NET?” and wanted non-marketing types to respond. I started to respond in the forums, but the eventual length of the response and its applicability to many other people resulted in my responding here. What PowerBuilder has always been good at – its differentiating factor – is allowing developers to rapidly build Windows client applications that are open with respect to the data source they work with. You can use other tools to do Windows client applications (e.g., C#, C++, etc.), but the primary advantage that PowerBuilder offers is that it accelerates the development effort. My gut feeling is that I can be an order of magnitude more productive using PowerBuilder to develop a Windows client than any other tool.

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Learn best practices and techniques for enhancing the testability of your ASP.NET MVC applications.

Iqbal Khan discusses how developers handle data relationships while caching data, and shows through source code examples how those relationships can be mapped. The net effect is that the application doesn’t have to keep track of those relationships in the cache. Rather, the cache is aware of them and handles them correctly.

In the first installment of this series, I explored a few of the new features in ASP.NET MVC 4, including the new default project templates, mobile templates, and display modes. Since that article, ASP.NET MVC 4 has been released to beta. For brevity’s sake, when I refer to MVC the design pattern, I’m referring to the ASP.NET implementation of the pattern. In this installment, I’m going to focus on one of MVC’s most useful features: integrated JavaScript and CSS bundling and minification.

As a web site owner we all boast about 24 x 7 uptime. But somewhere down below in our hearts we know it’s difficult.