Re: Vertical Scrollbars Unresponsive in Pane

*To*: mathgroup at smc.vnet.net*Subject*: [mg129378] Re: Vertical Scrollbars Unresponsive in Pane*From*: Gregory Lypny <gregory.lypny at videotron.ca>*Date*: Tue, 8 Jan 2013 23:40:45 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <20130108040620.C74A36868@smc.vnet.net>

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. Gregory On Tue, Jan 8, 2013, at 9:59 AM, Murray Eisenberg <murray at math.umass.edu> 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 videotron.ca> 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 math.umass.edu > 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 > > > > >

**References**:**Vertical Scrollbars Unresponsive in Pane***From:*Gregory Lypny <gregory.lypny@videotron.ca>