Hi,
Unfortunately the TTIWAdvWebGrid does not support client alignment.
By default the grid will autosize to the number of rows and columns.
You can disable autosizing by setting Scroll.Style to scAuto and UseFullHeight/Width to True. Then manually update the width and height values.
Example:
procedure TIWForm1.IWAppFormCreate(Sender: TObject);
begin
TIWAdvWebGrid1.Scroll := scAuto;
TIWAdvWebGrid1.UseFullHeight := True;
TIWAdvWebGrid1.UseFullWidth := True;
end;
procedure TIWForm1.IWButton1Click(Sender: TObject);
begin
TIWAdvWebGrid1.Height := TIWAdvWebGrid1.Height + 100;
TIWAdvWebGrid1.Width := TIWAdvWebGrid1.Width + 100;
end;