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Vertical Scroll Bar Missing on Edit-Combo List

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    Vertical Scroll Bar Missing on Edit-Combo List

    I have a textbox that uses the edit-combo list as a Lookup for acceptable values. The list can be lengthy. It is set to a height of 3 in. Using Google Chrome on a Windows 7 computer, a vertical scroll bar automatically appears for scrolling the list. Using Google Chrome on a Windows 8 computer, the scroll bar is missing. The options that do not fit inside the list box are not shown.

    I was just shown this today by a user of an existing A5 application. The latest release of version 11 is being used. I have not yet tried to reproduce this with a simple dialog. I will try that next. Anybody have any ideas on this one.

    #2
    Re: Vertical Scroll Bar Missing on Edit-Combo List

    I have attached a sample dialog that produces the problem. The dialog uses the AlphaSports database. I ran it as a component on a TABUI in a published application. When I click the dropdown, it lists about 20 options but doesn�t allow any scrolling. Remember, it only produces these results using the Windows 8 operating system and Google Chrome browser. Any workaround suggestions? This may be a bug. I have submitted a report, but do not have feedback yet.
    Attached Files

    Comment


      #3
      Re: Vertical Scroll Bar Missing on Edit-Combo List

      The following the Selwyn Rabin's reply to my bug report on the missing scroll bar as described in the previous posts. If your app is running on a computer with a touch screen, this is important info:

      Turning off Drag Scrolling - Some machines support both touch events and a mouse. On these machines certain controls (such as the edit-combo) will not have a vertical scrollbar because it is assumed that the user will use a touch gesture to scroll the list. However, you might want to turn off touch (i.e. drag) scrolling and force the user to use the mouse to scroll content.
      This can be done by executing the following Javascript command.

      A5.u.drag.useDragScrolling = 'never';


      A convenient place to execute this Javascript (if your components are run from a Tabbed UI) is in the 'Javascript to run on startup' property of the Tabbed UI.

      If your components are not run from a Tabbed UI, you could add a <script> tag to the page that loads the component. You must execute the Javascript before the component has loaded.
      For example:



      <script>
      A5.u.drag.useDragScrolling = 'never';
      </script>

      Comment


        #4
        Re: Vertical Scroll Bar Missing on Edit-Combo List

        After adding A5.u.drag.useDragScrolling = 'never'; to the startup javascript for my Tabbed UI component, my vertical scrollbar still did not show up in the edit-combo list. I did find that I could get it to scroll by holding down the mouse button and dragging (both with and without the startup javascript). I suppose that will have to do.

        Comment


          #5
          Re: Vertical Scroll Bar Missing on Edit-Combo List

          Anyone get this to work. I have tried both solutions posted but still no scrollbar in Google chrome.
          J.R.
          Epigate Software, LLC.

          [email protected]
          http://www.epigate.com
          sigpic

          Comment


            #6
            Re: Vertical Scroll Bar Missing on Edit-Combo List

            I never got it to work for my application. I made a small working example of the problem with the AlphaSports database. I discussed it with Selwyn, but he says it works for him. If you get a solution, I would be very interested. Currently, my users just work around it.

            Comment


              #7
              Re: Vertical Scroll Bar Missing on Edit-Combo List

              Thanks Donna. Not the news I was hoping to hear. If I do ever find a solution I will be sure to let you know, but I don't think it will happen very soon. Surprised there is not more in the forum on this. With more and more people using Chrome, there should be more on this.

              -JR
              J.R.
              Epigate Software, LLC.

              [email protected]
              http://www.epigate.com
              sigpic

              Comment


                #8
                Re: Vertical Scroll Bar Missing on Edit-Combo List

                I know this is old but it helped me figure out somethign that has been a bother for quite some time now. I have a UX with look-ups that I could not get scroll bars in for nothing. I put
                A5.u.drag.useDragScrolling = 'never';
                in the clientside OnInitializebegin
                interestingly enough - drag scrolling on touch devices still works (assuming it is the browser compensating) and scroll bars are back now on the desktop so I am FINALLY pleased with this!
                NWCOPRO: Nuisance Wildlife Control Software My Application: http://www.nwcopro.com "Without forgetting, we would have no memory at all...now what was I saying?"

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                  #9
                  Re: Vertical Scroll Bar Missing on Edit-Combo List

                  Thanks Charles! This was really helpful. Had this problem for a while and could not solve until now.

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