vb.net - move flowLayoutPanel content via two buttons from right to left -

i have flowlayoutpanel have contents (controls ) , 2 button , 1 @ right , left design in image

i want make layout panel scroll content right button right , left button left , how can please ?

i using code top buttom , need right , left

the code is

 dim ypos integer 

the code in top button is

if ypos > flowlayoutpanel1.horizontalscroll.maximum - 451 ypos = flowlayoutpanel1.horizontalscroll.maximum - 450  else ypos += 450 flowlayoutpanel1.autoscrollposition = new point(0, ypos) end if 

and buttom button if ypos < 1 ypos = 0

 else  ypos -= 450  flowlayoutpanel1.autoscrollposition = new point(0, ypos)  end if 

thanks

increase , decrease value of horizontalscroll.value in respective left , right button click events.

 ''' <summary>     ''' determine approx total width of inner controls     ''' </summary>     ''' <returns></returns>     ''' <remarks></remarks>     private function approxinnerwidth() integer         dim returnval integer         each ctl control in controlsflowlayoutpanel.controls             returnval += ctl.width         next         return returnval     end function      private sub leftbutton_click(sender system.object, e system.eventargs) handles leftbutton.click          'scroll in 1/20th increments         dim scrollval = approxinnerwidth() \ 20          if controlsflowlayoutpanel.horizontalscroll.value > scrollval             controlsflowlayoutpanel.horizontalscroll.value = controlsflowlayoutpanel.horizontalscroll.value - scrollval         end if      end sub      private sub rightbutton_click(sender system.object, e system.eventargs) handles rightbutton.click          'scroll in 1/20th increments         dim scrollval = approxinnerwidth() \ 20          controlsflowlayoutpanel.horizontalscroll.value = controlsflowlayoutpanel.horizontalscroll.value + scrollval      end sub