topic Re: Problem displaying UI in Design mode for Legend in ArcGIS API for Silverlight Questions

Problem displaying UI in Design mode for Legend

Anonymous User — Fri, 17 Dec 2010 11:23:24 GMT

Original User: bpangtay

I'm getting a CAST error when I try to view MainPage XAML in Design mode. The error is on the line where one defines which Layers to include in the Legend where it is casting from DocumentPrimitiveNode to DocumentCompositeNode. Otherwise, the application works as expected but I can't edit the UI graphically. See enclosed images.

I'm using VS 2010, Silverlight 4, ESRI Silverlight API 2.1 and ArcGIS Server 10sp1.

Has anyone else experienced this problem?

Thanks for your help.

Re: Problem displaying UI in Design mode for Legend

AngelGonzalez — Fri, 17 Dec 2010 14:56:57 GMT

I think you need Microsoft Expression 4.0 to do any editing to the UI. If you look at the error message it specifically states "Unable to cast object type 'Microsoft.Expression.DesignModel..."

Re: Problem displaying UI in Design mode for Legend

Anonymous User — Fri, 17 Dec 2010 19:19:11 GMT

Original User: jenniferdnery

This is a bug in Blend and VS Design-time. Your project will still build and run. Unfortunately, you will not be able to see Design view. This is related thread: http://forums.arcgis.com/threads/18589-Minor-problem-with-Legend-control

Re: Problem displaying UI in Design mode for Legend

DanielMoran — Fri, 25 May 2012 14:13:32 GMT

Hi, I have had this trouble too, this is not a solution but a work around.
Just comment out LayerIDs param while developing, restore it and build before deploying to production.

<esri:Legend Map="{Binding ElementName=MyMap}"
LayerItemsMode="Flat"
/> 

Hope this helps.