Excel Document VSTO: "Associated Diagram" in the RadDiagramRibbonBar

[Eduardo]

While trying to build a quick POC using Telerik diagram control I came upon this issue.

When I try to bind "Associated Diagram" in the RadDiagramRibbonBar, I get an error when I click on the Drop down control.

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Microsoft Visual Studio
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Error using the dropdown: Unable to cast object of type 'System.Windows.Forms.UserControl' to type 'System.Windows.Forms.Form'.
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OK   
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I understand that an Excel Document Action Pane is in effect a UserControl type but I was wondering if there was a work around to this scenario.

[Eduardo]

FYI, I guess even the Excel Document VSTO context is irrelevant. I just tried a simple UserControl project to host the Diagram toolbar and the Diagram controls and the error comes up the same when trying to connect the toolbar with the diagram control.

[Dimitar]

Hello Ramon,

I have logged this issue on our Feedback Portal. You can track its progress, subscribe to status changes and add your comment to it here. I have also updated your Telerik Points.

To workaround this set the AssociatedControl in the code:

radDiagramRibbonBar1.AssociatedDiagram = radDiagram1;

Should you have any other questions do not hesitate to ask.

Regards,
Dimitar
Progress Telerik