ASPxGridView - How to implement a popup Edit Form for GridView in Batch Edit mode

In this example, ASPxGridView is used in Batch Edit mode. Clicking editable cells or the add new row button displays a custom Popup Edit Form.

Edit forms fields are filled using the ASPxClientGridViewBatchEditApi.GetCellValue method. After submiting new values, the grid cells are filled from the Edit Form using the ASPxClientGridViewBatchEditApi.SetCellValue method.