Public ReadOnly Property IsRowGroup As Boolean

Dim instance As RangeGroupStateChangedEventArgs
Dim value As Boolean
 
value = instance.IsRowGroup

public bool IsRowGroup {get;}

private void fpSpread1_RangeGroupStateChanged(object sender, FarPoint.Win.Spread.RangeGroupStateChangedEventArgs e) 
{
if ((e.IsRowGroup == false)) 
{
if ((e.RangeGroupInfo.Start == 0)) 
{
e.View.Sheets[fpSpread1.ActiveSheetIndex].RangeGroupBackgroundColor = Color.Bisque;
}
}
}

Private Sub FpSpread1_RangeGroupStateChanged(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.RangeGroupStateChangedEventArgs) Handles FpSpread1.RangeGroupStateChanged
If e.IsRowGroup = False Then
If e.RangeGroupInfo.Start = 0 Then
e.View.Sheets(FpSpread1.ActiveSheetIndex).RangeGroupBackgroundColor = Color.Bisque
End If
End If
End Sub