Encountering slow navigation to a card containing very large fields? Do this one simple trick.

[David Glasgow]

Sorry for belated response.  Easter visitors.

The user just initiates the automatic filtering for various keywords.  Once completed, the original imported text (field 1) remains in  its original form so that the user can click on a line in field 2 (i.e identified as containing a specific word or phrase) and then the text is selected and displayed in field 1  in its original context.  That works really well.

I’m happy with a medium term option to explore using datagrids, but I am still intrigued that placing the groups containing fields on navigated-from-cards eliminates the delay in transition.

Best Wishes,

David Glasgow
Honorary Professor, Nottingham Trent University
Sexual Offences, Crime and Misconduct Research Unit
Consultant Forensic & Clinical Psychologist
Carlton Glasgow Partnership
Director, Child & Family Training, York


LinkedIn <https://www.linkedin.com/in/davidvglasgow/>
> On 18 Apr 2022, at 5:42 pm, Richard Gaskin via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Yes, there are many ways to explore HOW to display data. My question is WHY.
> 
> Or more specifically, "What is the user asked to do with the data?"
> 
> If we solve the display challenge without considering the user task, the user task remains unaddressed.
> 
> But if we craft the UI to support the user task, I suspect the display question will resolve itself.
> 
> Maybe. Or maybe not. We'll find out when David returns to this thread to tell us about the user task.
> 
> -- 
> Richard Gaskin
> Fourth World Systems
> 
> 
> 
> Craig Newman wrote:
>> I think on the forum a few years ago we played with a gadget that only displayed a small number of lines of a very large dataset. That would perhaps allow a table field to be used without having to learn all about dataGrids. I will try to find that discussion.
>> Not that it is not a good idea to at least use the basics of a DG as a standard tool as a matter of course.
>> Craig
>>> On Apr 17, 2022, at 9:48 AM, Richard Gaskin via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> David V Glasgow wrote:
>>> > On 16 Apr 2022, at 8:20 pm, Richard Gaskin wrote:
>>> >>
>>> >> How many is "many many thousands of lines"?  10k? 100k? More?
>>> >
>>> > Typically 30,000 to 800,000.
>>> What is the user asked to do with 800,000 lines of data?
>>> That is, does this need to be displayed?
>>> >> Is the data displayed in list fields, or must the line wraps be
>>> >> calculated?
>>> >
>>> > The wrapped line field is locked and doesn’t change after import
>>> > and is unaffected by the  keyword-containing-lines process.  I
>>> > suppose a good question is are line wraps recalculated on navigation
>>> > to the card.
>>> I'd guess that the card record is unpacked before rendering, which would include the controls, such as fields, and their contents.
>>> -- 
>>> Richard Gaskin
>>> Fourth World Systems
> 
> 
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