What’s New In Silverlight 3 – Element Binding

In Silverlight 3 you can now use one User Interface element as the binding object for another. This can greatly simplify your code. For example, if you wish to display the value of a slider in a text box, there is no need to create a data object to mediate their connection; you can bind the text box directly to the slider:

   1: <Slider x:Name="sUnBound"

   2:     LargeChange="10"

   3:     Maximum="100"

   4:     SmallChange="1"

   5:     Value="50"

   6:     VerticalAlignment="Bottom" />

   7:  

   8:  <TextBlock x:Name="valueFromElement"

   9:   Text="{Binding Value, Mode=OneWay, 

  10:        ElementName=sUnBound}" />

 

Putting this in a new application will create a slider and a TextBlock and will bind the latter to the former and no code-behind is required at all.

Much more on this in the Mini-tutorial on Element Binding.

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About Jesse Liberty

Jesse Liberty is an independent consultant and programmer with three decades of experience writing and delivering software projects. He is the author of 2 dozen books and multiple Pluralsight courses, and has been a Senior Technical Evangelist for Microsoft, a Distinguished Software Engineer for AT&T, a VP for Information Services for Citibank and a Software Architect for PBS. He is a Xamarin Certified Mobile Developer and a Xamarin MVP, Microsoft MVP and Telerik MVP.
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