Question

I couldn’t get this to work in Silverlight, so I created two test projects. One simple WPF project and one simple Silverlight project that both do only one thing: set a public static readonly variable in code, and use it in a completely bare bones XAML. In WPF, works without a hitch. In Silverlight, I get the following compiler warning and runtime error:

Warning 2 The tag ‘Static’ does not exist in XML namespace ‘http://schemas.microsoft.com/winfx/2006/xaml‘…

and

Invalid attribute value {x:Static SilverlightApplication3:Page.Test} for property Text. [Line: 7 Position: 25]

I’m assuming this is not supported in Silverlight 2, or am I just missing something really simple? Here’s the full code for both just in case it’s the latter:

public partial class Window1 : Window {     public static readonly string Test = 'test';     public Window1()     {         InitializeComponent();     } }  <Window x:Class='WpfApplication4.Window1'     xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'     xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'     Title='Window1' Height='300' Width='300'         xmlns:WpfApplication4='clr-namespace:WpfApplication4'>         <Grid>         <TextBlock Text='{x:Static WpfApplication4:Window1.Test}' />     </Grid> </Window> 

and here’s the SL version:

public partial class Page : UserControl     {         public static readonly string Test = 'test';         public Page()         {             InitializeComponent();         }     }  <UserControl x:Class='SilverlightApplication3.Page'     xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'      xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'     xmlns:SilverlightApplication3='clr-namespace:SilverlightApplication3'     Width='400' Height='300'>     <Grid x:Name='LayoutRoot' Background='White'>         <TextBlock Text='{x:Static SilverlightApplication3:Page.Test}' />     </Grid> </UserControl> 

Answer 1

Unfortunately, it looks like Silverlight doesn’t support binding to static properties: What is the {x:Static sdfsdf} equivalent?