Hi Asman,
Thanks for your interest in Syncfusion Products.
To get the number of filtered records in the GridGroupingControl, you can make use of the GetFilteredRecordCount () method. The below code explains the same.
this.gridGroupingControl1.Table.GetFilteredRecordCount();
Here is a sample for your reference.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=GGC_FilteredRecordCount1796422419.zipPlease let me know if you have any further concerns.
Regards,
Arulraj.A