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Updating to SP1: Error InvalidCastException

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PDFViewer

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Deepak Shakya asked on 03 Jan 2012, 09:09 AM

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Hi,

I just updated to Q3 2011 SP1 so that I can get more document support for PDF viewer. After the installation and the upgrade wizard in VS2010, I have now reference to assemblies of version: 2011.3.1220.1040

When I run the project, it runs fine, expect that when I click on the button to open to PDFViewer in ChildWIndow, it crashes and gives error that says that I have a InvalidCastException.

Please see attached.

Basically it says that it cannot convert "System.Windows.Controls.ComboBox" to type "Telerik.Windows.Controls.RadComboBox".
I do not have any ComboBoxes in the childwindow. Just the PDFViewer inside a border.

Any help is appreciated.

4 Answers, 1 is accepted

Accepted

answered on 05 Jan 2012, 02:46 AM

Hi Kammen,

Thanks once again for your reply. I checked all the dlls and they were all the recent version. The problem was in the styling of the PDFViewer. I had modified the template of the PDFViewer. After upgrading, even though I had new dlls, the style was still the old one. Upon investigating the style, the old one uses ComboBox for the zoom percent whereas the new one uses RadComboBox for the zoom percent. Hence the issue of InvalidCastException.

Solution:
Creating a new template design from the new PDFViewer.

Many thanks!

However, the embedded images in the PDF document is still not being displayed.