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  • 0 comments  /  posted by  Silverlight Show  on  Jun 08, 2010 (5 days ago)
    Laurent Bugnion has found two issues with Windows Phone 7 ApplicationBar buttons so he wanted to post the workaround he used to make this work.

    The issue here is that pressing a button on the ApplicationBar does not remove the focus from the TextBox where the user is currently typing. If the button is a Save button, this is super annoying: The Binding does not get updated on the data object, the object is saved anyway with the old state, and noone understands what just happened.

    In order to solve this, you can make sure that the Binding is updated explicitly when the button is pressed[...].


  • 0 comments  /  posted by  Silverlight Show  on  May 20, 2010 (3 weeks ago)
    If you are wondering if there is an MVVM-friendly way to get a DataGrid’s SelectedItems into the ViewModel, read this blog post of Laurent Bugnion and find out the answer.

    The issue there is as old as the DataGrid (that’s not very old but still): SelectedItem (singular) is a DependencyProperty and can be databound to a property in the ViewModel. SelectedItems (plural) is not a DependencyProperty.

    Thankfully the answer is very simple: Use EventToCommand to call a Command in the ViewModel, and pass the SelectedItems collection as parameter.

  • 0 comments  /  posted by  Silverlight Show  on  Apr 30, 2010 (1 month ago)
    Laurent Bugnion reports a small issue with the release of the Windows Phone Developer Tools CTP (April 2010 Refresh) refresh and gives you an advice how to cope with the problem.

    The issue is that the Expression Blend Add-in Preview for Windows Phone (April Refresh) is not compatible with Blend 4.0.20408.0, which was the public RC (release candidate).

    A few days ago, the Blend team released a fix for an issue that was sometimes causing a crash when Blend was starting up. This new release (V4.0.20421.0) was not very well announced however, and many people (including me) did not install it. After all, Blend did not crash at startup of either of my machines, so I didn’t deem necessary to install yet a new RC.

    However, it is now clear that the Windows Phone 7 Add-In needs this latest-and-greatest version to work. If you have Blend 4.0.20408.0, you won’t be able to work with Windows Phone 7 in Blend.

  • 0 comments  /  posted by  Silverlight Show  on  Apr 06, 2010 (2 months ago)
    Laurent Bugnion announces that he has released a service pack (SP1) for MVVM Light Toolkit V3.

    Download and install the service pack according to the instructions on the Installation page, and create your first MVVM Light application for the phone (a blog post will follow later with more details).

  • 0 comments  /  posted by  Silverlight Show  on  Mar 26, 2010 (2 months ago)
    ImagesTake a look at this 17 minutes video in which the SilverlightShow representative Cidgem Patlak at MIX10 interviews Laurent Bugnion about the Silverlight adoption in Europe, Windows Phone 7 and the SilverlightShow EcoContest.
  • 0 comments  /  Show #20  with  Laurent Bugnion   /   18 minutes   /   Mar 24, 2010 (2 months ago)
    Laurent Bugnion talks with SilverlightShow representative Cigdem Patlak at MIX10 about his Silverlight MVP of the year award, Silverlight adoption in Europe, Windows Phone 7 and the SilverlightShow EcoContest.
  • 0 comments  /  posted by  Silverlight Show  on  Mar 22, 2010 (2 months ago)
    Laurent Bugnion dicovered a bug with multi-threading on the Windows Phone emulator.

    Multithreading is supported in Windows Phone 7 Silverlight applications, however the emulator has a bug (which I discovered and was confirmed to me by the dev lead of the emulator team): If you attempt to start a background thread in the MainPage constructor, the thread never starts. The reason is a problem with the emulator UI thread which doesn’t leave any time to the background thread to start.

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