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Invalid FORMATETC structure Error

By Mahesh Chand on Sep 12, 2008
This tip shows how to fix Invalid FORMATETC structure error when you drag and drop a control from Toolbox to a XAML file.
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Invalid FORMATETC structure Error


Usually, you get this error when an assembly reference in your Visual Studio is messed up.

In my Visual Studio 2008, I was getting this error when drag and drop a control from Toolbox to a XAML page.

"The operation could not be completed. Invalid FORMATETC structure."


I right click on Toolbox and selected "Reset Toolbox" menu item. It resets the assembly and control references and I no longer get this error.

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Mahesh Chand

C# Corner founder, 10-times Microsoft MVP, technical author, and software architect. Mahesh authored his first book, A Programmer’s Guide to ADO.NET in C# with APress at the age of 25. C# Corner is a memb... Read more