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Asked: 2026-05-11T12:57:32+00:00

I am playing with templates in Silverlight 2.0. I copied this… <Style x:Key=RoundButton> <Setter

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I am playing with templates in Silverlight 2.0. I copied this…

<Style x:Key='RoundButton'>     <Setter Property='Template'>         <Setter.Value>             <ControlTemplate TargetType='Button'>                 <Grid>                     <Ellipse Width='200' Height='200'>                         <Ellipse.Fill>                             <RadialGradientBrush GradientOrigin='.2,.2'>                                 <GradientStop Offset='0.2' Color='White' />                                 <GradientStop Offset='1' Color='Blue' />                             </RadialGradientBrush>                         </Ellipse.Fill>                     </Ellipse>                      <TextBlock Text='Push me' FontSize='28' HorizontalAlignment='Center' VerticalAlignment='Center'/>                 </Grid>             </ControlTemplate>         </Setter.Value>     </Setter> </Style>

from a web page at http://weblogs.asp.net/scottgu/pages/silverlight-tutorial-part-7-using-control-templates-to-customize-a-control-s-look-and-feel.aspx.

I put it into my app.xaml and as yet have not used it anywhere. When I try to run my code I get an error ‘Exception of type ‘System.ExecutionEngineException’ was thrown.’

What have I done wrong?

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1 Answer

  1. I believe that Silverlight requires the TargetType attribute. If you add TargetType=’Button’ to the Style element, it’ll compile and execute without this exception.

    EDIT: Yeah…I just followed the link you posted, and he has the TargetType attribute in his sample code. Add that, and you’re all good. I created a simple test app with just that Style element and a button using it, and it worked fine.

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