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Set Focus to a Row in a List Control

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    Set Focus to a Row in a List Control

    This is a problem I have encountered after moving from 7902 to build 8301.

    I use this technique fairly often to populate a list control in a UX:
    When the UX is opened, an unbound control is populated. The list uses the value in the control as an argument in a sql statement that populates the list.
    The list is set to "Delay Render until Explicit Refresh".
    The unbound control has an Action Javascript in the onChange event that refreshes the list.
    The result is that the UX opens and the list displays, and focus is set to the first row in the list.

    The problem I am having is that the list is losing focus.

    I have not pinned down the cause but I can re-create it.

    Here is a UX with a list based on the Northwinds customer list. To use it you'll have to change the connection string in the list.

    TestFocus.zip

    Here is are some more details:

    I made a List1 control with detail view.
    I mapped a detail view control: ContactName
    I unchecked Allow Null Selection.
    Capture Focus is checked by default.
    I added an unbound control: CustomerID
    Works fine so far

    I added an Action Javascript Refresh Data to the onChange of CustomerID control with default settings in the builder.
    In the list control I checked Delay Render until Explicit Refresh.
    I added a button labeled Populate CustomerID, with this in the click event
    Code:
     {dialog.Object}.setValue('CustomerID','CENTC');
    I added an argument WHATCUSTOMERID. Value is derived from CustomerID control.
    I added WHERE CustomerID = :WHATCUSTOMERID to the sql statement that populates the list control.
    Works fine so far. When I click the button the list is populated with one row and focus is on the row.

    I added this to client-side event onRenderComplete:
    Code:
    {dialog.Object}.setValue('CustomerID','CENTC');
    Now the list is populated with one row, the row gets focus, but then a split second later the list loses focus.

    When {dialog.Object}.setValue('CustomerID','CENTC'); is excecuted in onRenderComplete, focus is lost.

    When {dialog.Object}.setValue('CustomerID','CENTC'); is executed from a button, focus remains.


    ** Sometimes in Live Preview and Working Preview the value disappears from CustomerID and the list never gets populated. But this does not happen in a browser.

    Note that the focus problem does not happen in a list with no detail view.

    Can anyone figure out what is happening here?



    Attached Files

    #2
    {dialog.Object}.setValue('CustomerID','CENTC');
    {dialog.Object}.setFocus('CustomerID​');

    I don't use list or grids so I never see this but try above.

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

    Comment


      #3
      {dialog.Object}.setFocus('CustomerID​');
      That sets focus to the CustomerID control. I want focus to remain on the row in the list​ control.

      Comment


        #4
        Should ask Alpha
        Insanity: doing the same thing over and over again and expecting different results.
        Albert Einstein, (attributed)
        US (German-born) physicist (1879 - 1955)

        Comment


          #5
          Do you have get record count on query checked? Maybe and this is a guess at best, the query is being performed twice negating the first and initial rendering....I dunno my friend I am just guessing, if the list is not paginated then you do not need to perform the query twice.
          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?"

          Comment


            #6
            Get count of records in query checked or unchecked makes no difference.

            Comment


              #7
              On the bright side you can rule that out. I am thinking bug here, but as I recall the last time I had an issue with a list control appearing and then quickly disappearing, I turned off pre-render and the behavior stopped. Again this is a guess, so this might not work either - let us know when you find out what the deal is!
              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?"

              Comment


                #8
                I unchecked Pre-render component at design time. When I saved the UX, it re-checked the checkbox.

                Comment


                  #9
                  lol, you might have checked that box that says automatically set ALL to pre-render without prompt ???
                  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?"

                  Comment


                    #10
                    This issue seems to be fixed in the latest Alpha build 8356 just released a few days ago.
                    I do not see it mentioned in the release notes.
                    If you have this issue you must open the child component in 8356, make a change so it is dirty, and save it.
                    So you must commit to using 8356 going forward.
                    I am not going to move to 8356 just yet since this bug is not critical.

                    Comment

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