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List Control - slow checkbox

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  • List Control - slow checkbox

    Hi, I am testing list control out with a checkbox, based on SQL to database.

    The checkbox seems to get slower when checking/unchecking, as the list grows with more items. Default is 250 items per page, autofetchmore is selected, and none for virtual (I've tried a few variations also). Server side sort is enabled (required for use case).

    I have the checkbox enabled via the properties, and left the default settings.

    When the list initially loads, the checkbox takes about 1 - 1.5 seconds to click it and respond. As the list grows, the response takes longer and longer - like 4-5 seconds per checkbox after it fetches data 2 or 3 more times. I've tried this using working preview and live preview, various browsers and no go.

    It makes the checkbox completely un-usable. Any suggestions or anyone else experience this?


  • #2
    I am using the latest full (non-prerelease) release.


    • #3
      Insanity: doing the same thing over and over again and expecting different results.
      Albert Einstein, (attributed)
      US (German-born) physicist (1879 - 1955)


      • #4
        Hi Pete, thanks for the suggestion - just tried that and no go. It is still taking multiple seconds to check. thanks!


        • #5
          are you specifically seeing a new call during the check uncheck process in dev tools? You may be able to see the bottle neck in the waterfall of network traffic. As a for instance, I load a "news" page when my tabbedUI loads. As an admin I can edit it using a text area with the typical editor. Those icons for the html editor (which are small) take the longest time to load when the page loads. Not really a big deal as the page is painted and visible but it's still weird that they are always last and I can see it watching the network tab in dev tools. You may have soemthing else unrelated to the checkbox activity that is triggered that might be causing this visible delay. May not be the issue but always worth looking into!
          NWCOPRO: Nuisance Wildlife Control Software My Application: "Without forgetting, we would have no memory at what was I saying?"


          • #6
            Hi Charles, are you referring to devtools in the browser itself? No I have not but I’ll check that. I have limited experience using the browser tools directly but it’s not totally foreign.

            thanks !


            • #7
              So I was using FireFox's dev tools and don't see anything occurring really when I click/unclick under any of the tabs. Doesn't appear to be refreshing.


              • #8
                Well, that being the case it may be an AS issue that they can fix. I would send in the UX and a conn string and let Selwyn have a look at it. If the UX isn't making a callback and no network activity is slowing down the UX then perhaps it is something they can tune, even if it is working properly just slowly. Either way he may be able to figure out if it's the code or the data doing it and possibly offer a solution. Might help us all out in the future!
                NWCOPRO: Nuisance Wildlife Control Software My Application: "Without forgetting, we would have no memory at what was I saying?"


                • #9
                  Thanks Charles - I did create a sample project with a DBF file and sample UX and submitted yesterday. Hopefully it isn't something that I am doing wrong, but seems to be happening with the bare minimum of changes. Thanks to all who responded.


                  • #10
                    When are you doing the server side sort? It might work better if you make the list multiselect instead of the checkbox.
                    Pat Bremkamp
                    MindKicks Consulting


                    • #11
                      I think for the test purpose, I disabled server side sort. Selwyn replied back a short bit ago and stated they redraw all the rows with each click, and will see if they can optimize it. Currently, the users are used to seeing a grid and checkbox so to switch to multi-select rows would be a change... and with so many rows needing to be selected, one click and they all become unselected, so I'm trying to avoid that... thanks for the suggestion though - it may be my fallback.