How to implement custom dropdown row editor for DXGrid

This example demonstrates how to edit grid row using the dropdown panel with editors generated automatically based on the underlying row data object. To see this approach in action, click the "Edit" hyperlink in the "#" grid column. To close dropdown panel click "Edit" again.
This functionality is achieved by creating the attached behavior which generates the necessary DataRowTemplate for the grid row. The custom template can also be defined and assigned to the GridHelper.CustomTemplate property, so the custom template will be used instead the autogenerated template.