Hello,

I've just upgraded my projects from version Q1 2009 SP1 to SP2! Since I'm starting to use Silverlight 3, I've decided to install version  RadControls_for_Silverlight3_2009_1_529_trial.zip!

After compiling my applications and exception is always thrown when I try to open some (design-mode) usercontol that used RadGrid:
Could not load file or assembly 'System.ComponentModel, Version=2.0.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
   at System.Signature._GetSignature(SignatureStruct& signature, Void* pCorSig, Int32 cCorSig, IntPtr fieldHandle, IntPtr methodHandle, IntPtr declaringTypeHandle)
   at System.Signature.GetSignature(SignatureStruct& signature, Void* pCorSig, Int32 cCorSig, RuntimeFieldHandle fieldHandle, RuntimeMethodHandle methodHandle, RuntimeTypeHandle declaringTypeHandle)
   at System.Signature..ctor(RuntimeMethodHandle methodHandle, RuntimeTypeHandle declaringTypeHandle)
   at System.Reflection.RuntimeMethodInfo.get_Signature()
   at System.Reflection.RuntimeMethodInfo.FetchNonReturnParameters()
   at System.Reflection.RuntimeMethodInfo.GetParametersNoCopy()
   at System.Reflection.RuntimePropertyInfo.GetIndexParameters()
   at MS.Internal.Xaml.ReflectionTypeNode.BuildProperties()
   at MS.Internal.Xaml.ReflectionTypeNode.Find(Identifier name, Boolean includeAttachable)
   at MS.Internal.Xaml.ReflectionTypeNode.Find(Identifier name, Boolean includeAttachable)
   at MS.Internal.Xaml.XmlElement.ConvertAttributes(XamlObjectElement objectElement, XamlElement parent, TypeNode typeNode, PrefixScope scope, IParseContext context)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Xaml.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Xaml.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.DocumentTrees.Markup.XamlSourceDocument.FullParse(Boolean convertToXamlWithErrors)
   at MS.Internal.DocumentTrees.Markup.XamlSourceDocument.ConvertToSkeleton()
   at Microsoft.Windows.Design.Documents.Trees.MarkupDocumentTreeManager.EnableIncrementalUpdates()
   at Microsoft.Windows.Design.Documents.MarkupDocumentManager.BuildSkeleton(IMarkupSourceProvider source)
   at Microsoft.Windows.Design.Documents.MarkupDocumentManager.<>c__DisplayClass4.<Load>b__0()
   at Microsoft.Windows.Design.ServiceManager.PublishProxy`1.PublishService(Type serviceType)
   at Microsoft.Windows.Design.EditingContext.DefaultServiceManager.GetService(Type serviceType)
   at Microsoft.Windows.Design.EditingContext.DefaultServiceManager.Subscribe(Type serviceType, SubscribeServiceCallback callback)
   at Microsoft.Windows.Design.ServiceManager.Subscribe[ServiceType](SubscribeServiceCallback`1 callback)
   at MS.Internal.SelectionTracking.SelectionTracker..ctor(EditingContext context)
   at MS.Internal.Designer.VSDesigner.Load()
   at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedView.Load()
   at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedDesignerFactory.Load(IsolatedView view)
   at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view)
   at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view)
   at MS.Internal.Host.Isolation.IsolatedDesigner.Load()
   at MS.Internal.Designer.DesignerPane.LoadDesignerView()

Any idea about the resolution for this issue?

Thanks.

Best Regards,
Rogério

Hi Rogério,

Do you have reference to System.ComponentModel assembly in your project?

Greetings,
Vlad
the Telerik team

Hi,

No! It should be some assembly dependency!

Regards,
Rogério

Hi,

It works!

Is there any other Telerik control that needs that assembly reference?

Regards,
Rogério

Hello Rogério,

Currently only the grid will need this.

Sincerely yours,
Vlad
the Telerik team

My project was working fine without this reference until one day it demanded it, but only in Blend, and the application still runs fine. When I add the reference Blend can no longer open the project (it crashes). 622

System.ComponentModel.dll is no longer part of Silverlight 3 - see http://silverlight.net/forums/t/109002.aspx.

Hello Ken,

You should the assemblies from our latest internal build. Please check this thread for more info:
http://www.telerik.com/community/forums/silverlight/silverlight3/radcontrols-q2-2009-for-silverlight-3.aspx

Best wishes,
Vlad
the Telerik team

When I go to the internal build download page, the latest internal build available to me is RadControls_for_Silverlight3_2009_1_612_trial.zip.  According to the other thread you've referred me to, I need build 710 - is that not available to me as a trial user?

Hi Ken,

All internal builds are available and for trial users. In order to see the newest latest internal build you have to download the last official release for SIlverlight which is 2009 Q2. Then you should be able to see the latest internal build for SL3 which is 2009_2_724.

Please download the Q2 release and let me know how it goes.

Regards,
Hristo
the Telerik team