Hi Vlad,
Thank you for contacting Syncfusion support.
We regret to inform you, currently we don’t have a support for filtering in SfTreeGrid. In our upcoming release, programmatic filtering support will be added where you can filter the SfTreeGrid programmatically. Please let us know your requirement whether you need programmatic filtering or advanced filtering like in Excel or additional row in SfTreeGrid to filter its content (Filter row or filter bar). So that will consider to log feature based on your requirement.
Regards,
Muthukumar K
