Hi Ben,
Thank you for using Syncfusion product. By default you can scroll the grid using the arrow keys. Are you handling any key specific events i.e., CurrentCellKeyDown etc? Are you using any custom celltype? Which version of the grid being used? Please update us more details, this helps us to debug this issue at the earliest.
Please refer to the following forum threads which discuss the issues about arrow keys.
http://www.syncfusion.com/support/forums/message.aspx?MessageID=30859http://www.syncfusion.com/support/forums/message.aspx?MessageID=32016http://www.syncfusion.com/support/forums/message.aspx?MessageID=14618In this sample you can scroll by using the right and left arrow keys. You can download the sample from the following page.
http://websamples.syncfusion.com/samples/Grid.Windows/F67686/main.htmPlease refer to the sample and let me know if you have any questions.
Regards,
Nagaraj