Hi
Thank you for your patience.
We have tested the following sample for Arrow key navigation (setting WantTabKey property to false) in v5.2 and seem to be working fine here. Which version of grid are you using?
Please refer to the following sample
Sample:
http://websamples.syncfusion.com/samples/Grid.Windows/F67689/main.htmKindly take a look and let me know if the issue is reproducible in this sample.
Regards,
Ajish.