OBSOLETE - ASPxGridView - How to focus cells from top to bottom by Tab key pressing when the Batch Edit mode is used

UPDATED:

Starting with version v2016 vol 1 (v16.1), a similar functionality is available out of the box. Set the grid's SettingsEditing.BatchEditSettings.StartEditAction property to the FocusedCellClick value to activate it. Please refer to the Batch Editing and Updating demo and ASPxGridView - Batch Edit - Provide cell focusing and keyboard navigation thread for more information.

If you have version v16.1+ available, consider using the built-in functionality instead of the approach detailed below.

For earlier versions: 

This example demonstrates how to change the order of focusing ASPxGridView cells by pressing the Tab key when the Batch Edit mode is used.

In this example, the ASPxClientUtils.AttachEventToElement method allows defining a handler for the keydown event of ASPxGridView's main element. The ASPxClientGridViewBatchEditApi.StartEdit method is used for changing the order of cell focusing. A list of read-only column indexes is stored in ASPxGridView.JSProperties.