Hi Chris,
Thanks for your suggestion. We do have a custom pre-loader, but my issue sounds a little bit different to what you have described. On the affected machines, the problem is not intermittent ; it occurs every time. We have not experienced the issue on dev machines ; only come across it in "user land". The only way I've found to fix it is to un-install Silverlight and re-install, and then the problem does not re-occur. And it's not just our site that has the issue. An affected machine does not load the Silverlight object on the main page of www.silverlight.net <http://www.silverlight.net/> either. Everything points to a Silverlight install issue, but having found 3 machines now with the same issue (that I know of) makes me worried about all those machines that I don't know of. :-( Simon. ________________________________ From: Chris Anderson [mailto:[email protected]] Sent: Friday, 17 June 2011 3:29 PM To: ozSilverlight Subject: Re: Silverlight object not showing - xap downloading but not launching Hi Simon Do you have a custom preloader (i.e. splash screen), or are you using the default one? I've personally found that custom preloaders are sometimes problematic, with similar issues to what you're reporting. There seems to be a race condition, where if the Silverlight application downloads too quickly, the Silverlight runtime gets confused with what it should display (the preloader or the application), and nothing ends up loading. I'm interested in whether other people have experienced this, as I haven't seen it reported (I do discuss it in my book Pro Business Applications with Silverlight 4 though). But then again, sadly few Silverlight developers actually make the effort to create a custom preloader. I notice this issue primarily occurs on development PCs, where the application download generally does happen fast. So if you do have a custom preloader, try disabling it and see if that solves your problem. Chris On 17 June 2011 14:25, Simon Hammer <[email protected]> wrote: Hi all, I have come across an issue on a handful of machines (have at least 3 examples) where hitting a website containing a Silverlight object, the object is not being displayed. The symptoms I'm seeing are:- * The XAP file is being downloaded but there's obviously a problem launching it. * The Silverlight splash screen (loading xaml) is shown while downloading the xap, but after loading, Silverlight object area is blank. * A Silverlight fallback page will not be displayed as it's detecting that the correct version is installed. * The correct Silverlight version is being displayed on the Silverlight Configuration screen * The "Application Storage" tab is missing from the Silverlight Configuration screen * The problem is not confined to a single website. Hitting various different websites containing Silverlight objects exhibit the same behavior. We've had a user's machine go from working to not-working without any changes to the website. This leads me to believe it to be a problem with the install of a newer version of Silverlight via the "auto-update" process (as auto update was checked). The fix is to un-install Silverlight via Add/Remove programs then re-install it. However, this is not something that would be done by the general public accessing the site. Has anyone come across this issue before or have any suggestions as to how I could work-around? Cheers, Simon. _______________________________________________ ozsilverlight mailing list [email protected] http://prdlxvm0001.codify.net/mailman/listinfo/ozsilverlight ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
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