<div>Hi,</div>
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<div>   I am trying out some sample Silverlight code with IronPython and I found that the data binding does not work properly.</div>
<div>The app.xaml is as below:</div>
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<div>&lt;UserControl x:Class=&quot;System.Windows.Controls.UserControl&quot;<br> xmlns=&quot;<a href="http://schemas.microsoft.com/client/2007">http://schemas.microsoft.com/client/2007</a>&quot;<br> xmlns:x=&quot;<a href="http://schemas.microsoft.com/winfx/2006/xaml">http://schemas.microsoft.com/winfx/2006/xaml</a>&quot;&gt;<br>
  &lt;Grid x:Name=&quot;layout_root&quot; Background=&quot;White&quot;&gt;<br>    &lt;StackPanel&gt;<br>        &lt;Slider x:Name=&quot;sliderFontSize&quot; Margin=&quot;3&quot; Minimum=&quot;1&quot; Maximum=&quot;40&quot; Value=&quot;10&quot; /&gt;<br>
        &lt;TextBlock x:Name=&quot;lblMessage&quot; Text=&quot;Hello World&quot; Margin=&quot;5&quot; FontSize=&quot;{Binding ElementName=sliderFontSize, Path=Value,Mode=TwoWay}&quot;&gt;&lt;/TextBlock&gt;<br>        &lt;Button x:Name=&quot;cmdClickMe&quot; Content=&quot;Click Me!&quot; Margin=&quot;5&quot;&gt;&lt;/Button&gt;<br>
    &lt;/StackPanel&gt;<br>  &lt;/Grid&gt;<br>&lt;/UserControl&gt;<br></div>
<div>This XAML when used in a C# Silverlight app reflects the correct data binding behaviour but does not work when used with IronPython and Chiron. Mainly the font size of the text block is not updated.</div>
<div>Does anyone have any idea about this?</div>
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<div>Thanks,</div>
<div>Shyam</div>