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RadRibbonBackstageItem Icon Crashes Designer

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RibbonView and RibbonWindow
This is a migrated thread and some comments may be shown as answers.
Kelly
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Kelly asked on 16 Nov 2011, 01:26 AM
Hi:

If I add an Icon property to a RadRibbonBackstageItem, thus:

<telerik:RadRibbonBackstageItem Header="Open View" IsDefault="True" Icon="/AttnHistory;component/Images/Ribbon/page_go.png">
    <StackPanel Margin="15 15 0 0">
        <TextBlock Text="Stored Views" FontSize="14" FontWeight="Bold" Margin="0 0 0 2" />
        <Rectangle Height="1" Fill="{StaticResource DottedLineBrush}" />
        <ItemsControl ItemsSource="{Binding StoredViews}" Margin="0 4 0 0" ItemTemplate="{StaticResource StoredViewTemplate}"/>
    </StackPanel>
</telerik:RadRibbonBackstageItem>

the BackstageItem element is underlined in the VS2010 XAML designer and shows an error. The associated error text is "[Line: 0 Position: 0]". The module compiles correctly, it runs correctly, and the icon is shown correctly. But working with the module in the designer is a pain in the butter. It also occasionally crashes the designer with:

System.Reflection.TargetException
Object does not match target type.
   at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)
   at Microsoft.Expression.DesignModel.Metadata.LocalClrPropertyImplementation.GetValue(Object target)
   at Microsoft.Expression.Platform.Silverlight.SilverlightDependencyPropertyImplementation.GetValue(Object target)
   at Microsoft.Expression.DesignModel.Metadata.DependencyPropertyReferenceStep.GetValue(Object target)
   at MS.Internal.Services.DesignModeValueProviderService.RunDesignModeValueProvider(Object target, ModelItem modelItem, Platform platform, ValueTranslationService valueTranslationService, Type runtimeType, PropertyIdentifier property, ReferenceStep referenceStep, Boolean isFirstTime, ReferenceStep shadow, Object newValue)
   at MS.Internal.Services.DesignModeValueProviderService.ValueTranslationServicePropertyInvalidated(Object sender, PropertyInvalidatedEventArgs e)
   at MS.Internal.Features.DesignModeValueProviderConnector.ValueTranslationServiceImpl.InvalidateProperty(ModelItem item, PropertyIdentifier property)
   at Telerik.Windows.Controls.Design.SelectedDesignModeValueProvider`1.AdornerProxyBase.Activate(ModelItem item)
   at Microsoft.Windows.Design.Interaction.AdornerProvider.InvokeActivate(EditingContext context, ModelItem item)
   at MS.Internal.Features.AdornerProviderFeatureConnector.FeatureProvidersAdded(ModelItem item, IEnumerable`1 extensions)
   at Microsoft.Windows.Design.Policies.PolicyDrivenFeatureConnector`1.OnPolicyItemsChanged(Object sender, PolicyItemsChangedEventArgs e)
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at Microsoft.Windows.Design.Policies.ItemPolicy.OnPolicyItemsChanged(PolicyItemsChangedEventArgs e)
   at Microsoft.Windows.Design.Policies.SelectionPolicy.OnSelectionChanged(Selection newSelection)
   at Microsoft.Windows.Design.ContextItemManager.SubscribeProxy`1.SubscribeContext(ContextItem item)
   at Microsoft.Windows.Design.SubscribeContextCallback.Invoke(ContextItem item)
   at Microsoft.Windows.Design.EditingContext.DefaultContextItemManager.OnItemChanged(ContextItem item)
   at Microsoft.Windows.Design.EditingContext.DefaultContextItemManager.SetValue(ContextItem value)
   at MS.Internal.Designer.VSDesigner.VSDesignerClientImpl.RestoreSelection(List`1 selectionOffsetsInXamlFile)
   at MS.Internal.Designer.VSDesignerClient.RestoreSelection(List`1 offsetsInXamlFile)
   at MS.Internal.Designer.DesignerPane.LoadDesignerView(Boolean isReload)

Any ideas why this occurs, and is there a workaround, perhaps?

By the way, I have other Backstage items with icons that work perfectly and don't exhibit the error, such as:

<telerik:RadRibbonBackstageItem Header="New View" Command="{Binding NewButton}" IsSelectable="False" Icon="/AttnHistory;component/Images/Ribbon/page_add.png"/>

Thank you,

KO

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Viktor Tsvetkov
Telerik team
answered on 18 Nov 2011, 05:38 PM
Hi Kelly,

Could you please try your project with the latest binaries from Q3 release and tell me if the error still occurs?

Kind regards,
Viktor Tsvetkov
the Telerik team

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Kelly
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answered on 18 Nov 2011, 11:45 PM
Thank you Viktor - all taken care of with the Q3 build. KO
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RibbonView and RibbonWindow
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Viktor Tsvetkov
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Kelly
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