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  • 0 comments  /  posted by  Svetla Stoycheva  on  Sep 02, 2010 (1 month ago)


    Gill Cleeren, who is Microsoft Regional Director and MVP for ASP.NET, has recently delivered a really successful webinar on Data Binding for SilverlightShow.

    Following the active participation of attendees in the Q&A session, and the positive feedback received after the webinar, we invited Gill to deliver more webinars for SilverlightShow in October this year.

    In this interview we talk to Gill on why the last webinar was such a success, and what we should expect from his next webinars.

    Q. Gill - congratulations for delivering a highly successful webinar for SilverlightShow on August 19th! We had a really good number of live attendees, and an even bigger number of downloads of the webinar recording.

  • 3 comments  /  posted by  Gill Cleeren  on  Jul 27, 2010 (2 months ago)

    In this third and last part of the duplex story in Silverlight, we’ll take a look at the third option offered by Silverlight to perform duplex communication.

    Let’s quickly review the first two options. In Part 1, we looked at the Http Polling Duplex binding. Using a continuous polling mechanism on the network layer, this binding makes it possible to create an illusion of duplex communication. The big plus of this binding is the possibility we have to use it in internet scenarios, since all communication goes over plain HTTP.

  • 0 comments  /  posted by  Gill Cleeren  on  Jul 20, 2010 (2 months ago)

    In the first part of this series on duplex communication in Silverlight 4, we did a deep dive in one of the available options offered by the platform, namely the Http Polling Duplex binding. It’s advised that you read that article first, since this second part continues where we left of in the first part.

    To summarize the first part quickly, we saw that Silverlight applications in some situations can really benefit from duplex communication. In scenarios where the client needs to be updated because of changes in the state of the server side (for example a change in a database, a file change…), the best solution is working duplex.

  • 6 comments  /  posted by  Gill Cleeren  on  Jul 05, 2010 (3 months ago)
    Silverlight 4 offers us many choices to work with services to get data into our applications. Supported technologies include WCF, ASMX, REST, WCF RIA Services etc. Through the use of any of these, it’s quite easy to get data from the server to the client application and vice versa. They all have one thing in common: before the data is sent, the client has to perform a request to the server to do so. The communication is known to be client-initiated. But what if the server wants to initiate communication by sending some data to the client, without there being a request first? In this case, we need to use duplex communication, so that both sides of the communication channel can start sending data.
  • 3 comments  /  posted by  Svetla Stoycheva  on  Apr 26, 2010 (5 months ago)

    As we have recently announced, a hot book on data-driven applications with Silverlight - Microsoft Silverlight 4 Data and Services Cookbook was expected to hit the market. The book is now out and there is a 20% price discount available exclusively for SilverlightShow community with promo code SShow20Net.

    We are talking to one of the book authors - Gill Cleeren, Microsoft Regional Director for Belgium - on what we should expect from the book and how it will help you build better and faster data-driven Silverlight solutions.

  • 5 comments  /  posted by  Gill Cleeren  on  Apr 06, 2010 (6 months ago)
    Most developers working today in Silverlight probably have an ASP.NET background. I personally started with ASP.NET development way back in 2001 with the very first version of the platform. Over time, the ASP.NET platform evolved immensely and gathered some great features. One of these nice additions to the platform is the ASP.NET Membership API, introduced with ASP.NET 2.0. This API allows us to manage user authentication, role management and user profiling with ease. With ASP.NET 3.5, Microsoft added the so-called ASP.NET Application Services to make it possible to use this API from client-side technologies.
  • 14 comments  /  posted by  Gill Cleeren  on  Mar 09, 2010 (7 months ago)
    Tags: WCF , Gill Cleeren

    Uploading and downloading images using a WCF service with Silverlight

    Quite often, when browsing the web, we encounter a situation where we are required to upload a file. When I want to register myself on a forum, I often get the question if I want to upload an avatar. Or when using a social networking site such as Facebook, I can upload pictures of me doing something that probably no one is interested in. The point I’m trying to make here is that when developing in Silverlight, we’ll also come in a situation where we want our users to upload files such as images to the server.