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Asked: 2026-05-10T19:05:35+00:00

I have a combo box with the following DataTemplate: <DataTemplate x:Key=ComboBoxDataTemplate> <StackPanel> <TextBlock Text={Binding

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I have a combo box with the following DataTemplate:

<DataTemplate x:Key='ComboBoxDataTemplate'>             <StackPanel>                 <TextBlock Text='{Binding Path='Name'}'/>                 <Path Data='{Binding Path='PathGeometry'}' Width='64' Height='64' Stroke='Black' Stretch='Fill' StrokeThickness='1'/>             </StackPanel>         </DataTemplate>

PathGeometry is something simple like 0,1 0,0.5 0.5,0 0,1 (a simple curve). When I select the item in my combo box, the whole silverlight app goes white. An exception is thrown ‘Value is out of range’, which I handle, but then it goes white after that.

Why is the exception thrown? If I remove the {Binding} from the Path tag, and define my own it works fine. It’s just the data binding for some reason.

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1 Answer

  1. I haven’t exactly found ‘an answer’ for this, but I have found a work around. Rather than building up a property of type PathGeometry, if you change the property to use a String that will work equally well (using the path markup syntax).

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