Hello Philippe,

Thank you for contacting Infragistics Community!

After investigating this matter further and doing some research, hiding the igxGrid “Row Added” snackbar is not provided out of the box and has been determined to be a feature request, which has been already logged in our GitHub Repository here. Having this in mind, my suggestion would be to subscribe to this issue in order to get notifications whenever a new information is available. Feel free to add any additional information, or questions that you might have.

Meanwhile, what I can suggest in order to hide the snackbar is setting its display css property to none as demonstrated in the following sample I have prepared.

Please let me know if you need any further information.

Best Regards,
Martin Evtimov
Software Developer
Infragistics, Inc.