Basically the Telerik Extensions for MVC Grid can work with KendoUI editor templates if all scripts are correctly included in the page - please check this screencast
. Alternatively you can prefix the KendoUI ForeignKeyColumn editor template file name and then specify the new name in all KendoUI Grids:
columns.ForeignKey(p => p.EmployeeID, (System.Collections.IEnumerable)ViewData[
Also as Telerik Extensions for ASP.NET MVC has reached its official End of Life (EOL), with no additional fixes or enhancements expected in the future, I would strongly suggest to migrate all widgets
to Telerik UI for ASP.NET MVC as we no longer provide support for the Telerik Extensions.
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