(Prem Ramanathan) For any Line of Business (LOB) application that targets business users, validating data is one of the most important things that the application is expected to do. Since LightSwitch is a tool that is geared towards generating LOB applications quickly, data validation plays an impor

(Mahesh Sabnis) While discussing about the content download facility development using WCF with one of my clients, I proposed the solution of defining operation contracts with a Stream return type from WCF services and consuming it in client application.

(Ben Nadel) Yesterday, I started looking into a JavaScript pub/sub (publish and subscribe) library that provided asynchronous utility methods. These methods provided UUIDs (universally unique identifiers) and normalized timestamps in order to simplify the development of realtime applications across

In this programming tutorial we will learn how to change default Port of the ASP.NET Development Server. Today one of my friend got alert message when he tried to view page in browser.

(Phil Fresle) Readers maybe familiar with the Entity Framework (EF) tutorials on the asp.net web site (http://www.asp.net/entity-framework/tutorials). The latest addition to the series “Continuing with the Entity Framework” is an excellent tutorial on using version 4 of the Entity Framework in a web

(Bipin Joshi) In ASP.NET MVC applications the controller consists of one or more methods known as actions or action methods. In certain cases you require that in addition to the code written in the action method, some extra processing be carried out before or after the action method execution.

(Ankit Nandekar) If you want to protect your images from being reused by others, then the best way to do that is with watermark text on the images.

(Gunnar Peipman) I found very cool small profiler that can also be used on production sites to quickly detect bottle necks in web application code. The profiler is called MiniProfiler and in this posting I will introduce you how to use it in your code.

(Mahesh Sabnis) Many a times, the requirement demands that the WCF Service pushes data to the application that is consuming it, over the session established between client application and the WCF service. This mechanism can be termed as Callback. WCF actively supports callback to its client, over th

(Peter Vogel) If you want to exploit service-oriented architecture (SOA) and services, you’re going to have to go beyond just Web services. Visual Studio 2010 and Windows Communication Foundation (WCF) in the Microsoft .NET Framework 4 provide a comprehensive set of tools that reduces the barriers t