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Re: Vertical Scrollbars Unresponsive in Pane

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  • Subject: [mg129378] Re: Vertical Scrollbars Unresponsive in Pane
  • From: Gregory Lypny <gregory.lypny at>
  • Date: Tue, 8 Jan 2013 23:40:45 -0500 (EST)
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Hello Murray,

Thank you for replying.  I am using version 8.04 under Mac OS X 10.8.2.  
After reading your post, I played around with the image size of the pane 
and found that the vertical scroll will work as long the height of the 
image is at least 500 (it was originally 100), which means that 18 of 
the 244 rows of the array are displayed.

This is something that Wolfram may want to improve because the reason 
for using a pane is to display a modest amount of the data but still be 
able to browse all of it by scrolling.  If I chop the array down to only 
36 rows, I should be able to create a pane that displays four or five of 
the rows and scrolls vertically, but I cannot.  To get the vertical 
scroll to work, I have to set the image height to at least 210, which 
displays seven rows or almost 20 per cent of the number of rows in the 
array.  I'm guessing that Wolfram made the area of the hotspot (where 
the location of the mouse is detected) on the thumb scroll too small 
relative to the total area of the thumb scroll itself.  Maybe the area 
of the hotspot scales up with that of the thumb scroll as the image 
height is increased.  That's why the image size has to be increased (by 
trial and error) to make the vertical scroll functional.  In RAD 
languages like LiveCode,  a vertically-scrolling field containing 244 
rows of data can be set to display only three rows (admittedly 
impractical, but that's not the point) but still scroll fine.


On Tue, Jan 8, 2013, at 9:59 AM, Murray Eisenberg <murray at> wrote:

> What platform are you using? And what's the Dimensions of myArray in relation to the ImageSize you prescribed?
> I'm not having any trouble with this in Mathematica 9.0.0 under Mac OS X 10.8.2. For example:
>  myArray = RandomInteger[{0, 100}, { 100, 20}];
>  Pane[TableForm[myArray], ImageSize -> {500, 200}, Scrollbars -> True]
> I can readily scroll vertically as well as horizontally.
> On Jan 7, 2013, at 11:06 PM, Gregory Lypny <gregory.lypny at> wrote:
>> Hello everyone,
>> Whenever I create a pane with scrollbars to be able to browse through an array of data, the vertical scrollbar is unresponsive.
>> Pane[TableForm[myArray], ImageSize -> {800, 100}, Scrollbars -> True]
>> Is this a bug?
>> 	Gregory
> ---
> Murray Eisenberg                                    murray at
> Mathematics & Statistics Dept.      
> Lederle Graduate Research Tower            phone 413 549-1020 (H)
> University of Massachusetts                               413 545-2838 (W)
> 710 North Pleasant Street                         fax   413 545-1801
> Amherst, MA 01003-9305

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