Gracias por responder El bug se hace mas evidente cuando tienes el scroll abajo y resize el scrollPane hasta cambiar el numero de columnas , el ViewPort toma una medida anterior y no refresca el scrollpane el problema que no se donde programar ... , viewport viewportLayout scrollpane scrollpaneLayout ? , creo que no fue acertado el reescribir flowLayout ,pero me parecía interesante que los childs resize el panel parent,en este ejemplo http://buho29.net/swf/TestFrameFactory.swf el panel que contiene los buttons usa FlowParentLayout; code : http://buho29.net/swf/testscrollpane.as http://buho29.net/swf/FlowParentLayout.as un saludo // google Thanks for responding The bug becomes more evident when you scroll down and resize the scrollPane to change the number of columns, the ViewPort takes a step above and does not cool the scrollpane The problem is not where to schedule ... , Viewport viewportLayout scrollpane scrollpaneLayout? , I do not think it was right the rewrite flowLayout, but I seemed interesting that the childs resize the pane parent, in this example http://buho29.net/swf/TestFrameFactory.swf panel that contains the buttons used FlowParentLayout; Code: Http://buho29.net/swf/testscrollpane.as Http://buho29.net/swf/FlowParentLayout.as Greetings //systran Thanks to respond Bug becomes but evident when you have scroll down and resize scrollPane until changing I number of columns, the ViewPort takes a previous measurement and it does not refresh scrollpane the problem that not where to program…, viewport viewportLayout scrollpane scrollpaneLayout? , I believe that flowLayout was not right rewriting, but it seemed to me interesting that childs resize the panel parent, in this http://buho29.net/swf/TestFrameFactory.swf example the panel who contains buttons uses FlowParentLayout; code: http://buho29.net/swf/testscrollpane.as http://buho29.net/swf/FlowParentLayout.as a greeting