WPF Recursive call to Automation Peer API is not valid

Question

I am receiving an error message \"Recursive call to Automation Peer API is not valid\" when loading a datagrid with a datatemplatecolumn containing a combobox column. The er

Answer 1

I also had the same problem. So I checked also the reference to the WPFToolkit. I had two same versions of WPFToolkit installed (Version v3.5.50211.1), but only on my Laptop works it fine.

So I put the older version v3.5.40619.1 on my Windows Embedded Standard 7 PC and no more exceptions.

So I came to the conclusion that in some cases the newer Version has some problems with the runing system.