I used Telerik UI for ASP.NET MVC Grid to perform CRUD operations and manipulate its data in Popup mode. I create a template to customize the Popup window .. Until now every things works fine except the binding in the drop down list .. I followed exactly this demo but unfortunately the drop down list won't to populate.
Also, When I want to used a foreignkey column in Grid as below, I got "Value can not be null" error :(
columns.ForeignKey(p => p.category_id, ds => ds.Read(r => r.Action("GetCategories", "Home")), "id", "name").Title("Category");
I attached sample project having the issue.
Any Help Please