How to get the row position in WinForms GridGroupingControl?

//Hooks the SourceListRecordChanged event in the Form_Load.
gridGroupingControl1.SourceListRecordChanged += gridGroupingControl1_SourceListRecordChanged;
void gridGroupingControl1_SourceListRecordChanged(object sender, Syncfusion.Grouping.RecordChangedEventArgs e)
{
    if (e.Action == RecordChangedType.Added)
    {
        //Gets the TopRow index.
        int offset = gridGroupingControl1.TableControl.GetMinimumTopRowIndex();
        //Adds new record row position by using the FilteredRecords collection.
        int newRowIndex = e.TableListChangedEventArgs.Table.FilteredRecords.IndexOf(e.Record) + offset;
        //Writes the AddNewRow index in the output screen.
        Console.WriteLine(newRowIndex);
    }
}

'Hooks the SourceListRecordChanged event in the Form_Load.
Private gridGroupingControl1.SourceListRecordChanged += AddressOf gridGroupingControl1_SourceListRecordChanged
Private Sub gridGroupingControl1_SourceListRecordChanged(ByVal sender As Object, ByVal e As Syncfusion.Grouping.RecordChangedEventArgs)
    If e.Action = RecordChangedType.Added Then
        'Gets the TopRow index.
        Dim offset As Integer = gridGroupingControl1.TableControl.GetMinimumTopRowIndex()
        'Adds new record row position by using the FilteredRecords collection.
        Dim newRowIndex As Integer = e.TableListChangedEventArgs.Table.FilteredRecords.IndexOf(e.Record) + offset
        'Writes the AddNewRow index in the output screen.
        Console.WriteLine(newRowIndex)
    End If
End Sub