On Fri, 21 Aug 2009 07:36:42 -0500, Paul Gilmartin <paulgboul...@aim.com> wrote:
>... >Why is horizontal scrolling so much more difficult than vertical scrolling >in ISPF? >... Well, for one thing, it's harder to know what the user (or developer) wants. If it's a table display doing vertical scrolling, the static lines stay as is and a new set of data lines are put into the display. For horizontal scrolling, what do you do if the static part of the panel definition contains a mix of truly static fields and column headers? Scroll some lines but not others? What do you do if when a horizontal scroll puts the left edge of the panel in the middle of field of data? Do you want to display the partial data field or do you want to restrict scrolling to whole field amounts? And are you sure you have the same answer for each display? BTW, if you want to display partial fields you are really redefining the field size in the 3270 data stream. If you are able to include the 3270 attribute in the data (It's been too long. I don't remember if you can do that in ISPF displays.) then behind the scenes the software has to find the attribute in the data an move it to its new location. Bottom line: Horizontal scrolling IS harder than vertical scrolling. There is nothing ISPF can do about it until it is enhanced to incorporate mind reading. Pat O'Keefe ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
