How to change this design so that when the ScrollBar of a ScrollPanel got scrolled it will always show the 3rd panel in GWT?

Ok, here is my current design, I have 3 panels inside a Grid & the Grid is inside a ScrollPanel. I want that when the ScrollBar of the ScrollPanel got scrolled it will always show the 3rd panel.

Grid myGrid=new Grid(1,3);  myGrid.getCellFormatter().setVerticalAlignment(0, 0, HasVerticalAlignment.ALIGN_TOP);  myGrid.getCellFormatter().setVerticalAlignment(0, 1, HasVerticalAlignment.ALIGN_TOP);  myGrid.getCellFormatter().setVerticalAlignment(0, 2, HasVerticalAlignment.ALIGN_TOP);  myGrid.setWidget(0,0,panel1);  myGrid.setWidget(0,1,panel2);  myGrid.setWidget(0,2,panel3);  //normally the Panel 1 & 2 is much longer than panel3  final ScrollPanel myScrollPanel=new ScrollPanel();  myScrollPanel.add(myGrid);  myScrollPanel.addScrollHandler(new ScrollHandler(){        @Override      public void onScroll(ScrollEvent event) {             myScrollPanel.ensureVisible(panel3);      }    });  

Ok, when i scroll the scrollbar of the myScrollPanel down to see the bottom gui of panel2, it always show the panel3, that is correct but i couldn't see the bottom gui of panel2 since the system forced to visible the panel3 all the time.

SO do you have any solution for this problem? maybe design differently?

http://stackoverflow.com/questions/24124247/how-to-change-this-design-so-that-when-the-scrollbar-of-a-scrollpanel-got-scroll

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