Search

Mark Monster has posted about triggering Storyboard on ViewModel changes using the DataTrigger in Expression Blend.

Source: Mark Monster's Blog

Interactions based on ViewModel changes are easy as soon as you understand how it works. A lot of people have been hiding and showing elements in the UI based on a boolean in the ViewModel which is converted to fit the Visibility property. Of course they used an IValueConverter that translates a bool to a Visibility enum.

But sometimes designers are tough, they don’t want to show and hide, they want to play a full animation. Of course I know about the ability to trigger a Storyboard by using EventTriggers (control Loaded or Clicked for example). But did you know about the DataTrigger?

To connect to Google Analytics I need to have a html page that contains a script that calls into Google Analytics to track events. So somehow I need to connect a Windows Phone 7 app to this html page.

Microsoft really helps developers to implement licensing for your application. First of all everyone has probably read: “an app can only be installed through the Marketplace”. But beside this installation, an application can be tried through the Marketplace. The developer doesn’t have to write complex licensing mechanisms based on RPN strings. If you want to have limited features when the app is in Trial, it’s just one small piece of code. First reference the correct library.