Thank you for writing.
Could you please try and update your VSExtensions for Win Forms (in the latest version there are fixes for the upgrade and convert options) and try again to convert your existing project to Telerik enabled one. Here are the steps to do that:
1. Go to the Extension Manager (Tools -> Extension Manager) in VS2010.
2. Uninstall Telerik WinForms VSExtensions
3. Go to the Online Gallery section in the Extension Manager and search for Telerik WinForms VSExtensions
. Download and install them and restart the VS2010.
4. Try again to convert the project (If this don't help could you please open a support ticket and send us your *.vbproj and *.sln files in order to try and identify the problem).
In regards to your question about RadMultiColumnComboBox
, please note that internally its consists of RadGridView
inside of a drop down. You can access the RadGridView
instance via the EditorControl
property. Here is an example of how to add a column to the underlying grid:
I hope that you find the provided information helpful.
the Telerik team
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