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  • 0 comments  /  posted by  Silverlight Show  on  Jun 11, 2010 (2 days ago)
    Tim Heuer is discussing the issue of hosting Silverlight applications (XAPs) on your site that are from a different domain.

    What I mean here is that your site (www.coolwebapp.com) has an <object> tag for Silverlight plugin that has the Source parameter set to apps.anothersite.com/foo.xap.  This is essentially the cross-domain hosting situation.  What happens in this situation is that the plugin loads but the app does not, presenting in just a big blank space where the app should be.

    A recent head-banger sent me a note and I sent him my items to check on how to solve this.  I thought I’d share.



  • 0 comments  /  posted by  Silverlight Show  on  Jun 10, 2010 (3 days ago)
    Tags: Applications , QueryString , Parameters , XAP , Emiel Jongerius
    Emiel Jongerius describes the two ways to pass parameters to a Silverlight XAP application.

    There are two ways to pass parameters to a Silverlight application:

    • Using the querystring of the containing HTML/ASP.NET page
    • Using the InitParams attribute of the object tag that hosts the XAP file

  • 0 comments  /  posted by  Silverlight Show  on  May 12, 2010 (1 month ago)
    Alex van Beek has a very good tutorial on signing your XAP file with the help of Visual Studio 2010.

    I’ve found multiple posts on the web explaining how to sign a XAP file, including this one. In Silverlight 4, a XAP file must be signed in order to let an out of browser application update itself and to show the user a more friendly installation dialog when installing an elevated trust application. The  process for digitally signing a  XAP file explained on the web, includes using a post build event in which “signtool.exe” is called. With the new Silverlight 4 RC2 tools for Visual Studio 2010, there is another way to sign your XAP file…

  • 6 comments  /  posted by  Braulio Diez  on  Dec 14, 2009 (6 months ago)

    Introduction

    My XAP file is 5 Mb size, is that bad?

    Unfortunately that’s a usual question for lot of new Silverlight developers, … you start coding you Silverlight app everything is easy to do, you can use lot of powerful third parties stuff, and finally you end up with an awesome application that runs quite well under Cassini / localhost, then you a realize that…

    There’s only a small issue: the XAP file takes about 5 Mb, will that be a problem once the app (an internet facing one) is on production?

    Well...

  • Starting With Silverlight 3 MEF to Load .XAP Files Dynamically

    0 comments  /  posted by  Silverlight Show  on  Sep 14, 2009 (9 months ago)
    Tags: MEF , XAP , Silverlight 3

    In this post Al Pascual plays a little with the new Managed Extensibility Framework MEF for short library.

    I have many questions after the first application, even that everything works, the piping of the attributes are a little complicated, thanks to Brad Abrams post to help me, yet I have try to avoid using the collection to import the XAP UserControl without any success. I cannot find the reason why we need a collection to import one XAP file class.

  • 0 comments  /  posted by  Silverlight Show  on  Aug 05, 2009 (10 months ago)
    In this post you'll learn how to host a Silverlight application (aka a .xap) on a server, making it available to be called from other servers.

    I just had to do this and figure I'll document the steps. It isn't rocket science, but here's the story.

    First, you need to place a clientaccesspolicy.xml or a crossdomain.xml file at the root of your server. Read this MSDN documentation for more.

  • A Smaller XAP Preloader for Silverlight

    1 comments  /  posted by  Silverlight Show  on  May 17, 2009 (more than a year ago)
    Tags: XAP , Applications , Preloaders
    Page Brooks wondered how to load a Silverlight appilcation as quickly as possible and found out that the solution is to build a small, light-weight Silverlight application that will behave as a preloader for the main application.

    The preloader application will load first to provide some immediate feedback to the user and then begin downloading the main application asynchronously in the background.  As soon as the main application has finished downloading, the preloader application will instantiate and then inject the main application into its visual tree.


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