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What is CDN? CDN is short for Content Delivery Network. A CDN in simple terms is a collection of servers that are spread across the globe. In other words, a CDN is a network of servers in which each request will go to the closest server. Why Do We Need CDN? For any web application, data can be categorized into either static or dynamic content. Dynamic content is the one which generally comes from a database. Static content is the one like CSS, images, JavaScript, flash files, video files, etc. Now one may ask, how are requests served when a user enters an URL in the browser? Interesting… let’s take a look at it. Before knowing a CDN and its usage, it is very important to understand this process. How is a Web Page Served? When a client requests any URL, let’s say www.google.com in the browser, there is a server configured to listen to any request that comes in for www.google.com . A server in turn performs some computations and sends raw HTML back to the client. Raw HTML...

Recently I came across a requirement in which I was supposed to data bind a command from my viewModel to an event. In other words, my code-behind was not supposed to contain any code related to event handlers of a control. After digging more into Prism, luckily I found my answer. Above requirement can be achieved using InvokeCommandAction provided in Prism 5.0. Well, so my article will elaborate more on how to achieve this. InvokeCommandAction InvokeCommandAction consents us to invoke ICommand implementation on our viewModel to an event that exist on our control. It basically means, we are no longer bound or required to have a command property on a control in order to invoke a command. Now, you may say you have seen this similar thing before. And you are right because Blend SDK ships one. But the InvokeCommandAction which Prism provides is little bit different in two ways: First, it manages the state of the element. It updates the enable state of the control that is...

Microsoft just announced that soon we will be able to make voice and video calls from our web browser. This Skype for Web (beta) calls will work on Firefox, Safari, Chrome and of course IE. As of now, it will work as a plugin but soon it will work natively on all browsers without plugins. So, are you excited to try this out ???

Yes, its true. Soon Microsoft is about to reveal its own Lumia having 5-inch display, 1.2 GHz processor, 1GB of RAM, 8GB of storage and 3G-only connectivity. First look of this Lumia is already out: More info