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Mobile List - Drill Down Help

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    Mobile List - Drill Down Help

    Hi All,

    I have looked but can't seem to find the documentation on this.

    For a mobile UX, you can add a list to a panel card. As demonstrated in numerous videos, the user can click on the record shown in the list and the mobile application will open a new panel card with details of the record. Basically drilling down.

    Does someone know if there is a video that shows you how to link the two records and navigate from a to b? Similar to how when you popup up a grid from another one in the action button options you can simply set the link based on customer id.



    Re: Mobile List - Drill Down Help

    See if this is helpful Scott, using an example from what I do:

    My first list is of Areas, the second is of Animals -- Select the Area and get navigated to the list of animals in the area.

    So, the first list -- on the List Properties tab / OnClick event, I have an ajax callback for the Xbasic function "SetArea"

    Key code from SetArea is:

    session.Area_ID = <<some assignment code here>>
    jtxt = ""
    jtxt = jtxt + "{dialog.object}.panelSetActive('PANELCARD_2');"
    SetArea = jtxt
    There's more to what's above, but you can see that it's just setting a session variable, then calling the next panelcard.

    PanelCard_2, then, contains an AnimalList. It also includes an argument setting arg_area_id = session.area_id, and the Select statement for the AnimalList on PanelCard_2 is:

    SELECT Animal_ID, AREA_ID, Animal_Name AS Name 
    FROM Animals 
    WHERE AREA_ID = :arg_area_ID
    ORDER BY Name
    Once you've done this (and probably before you've done this) you'll see how simple it is. I'm sure there are other ways to do this too, but this works well for me.

    Is this helpful?


      Re: Mobile List - Drill Down Help

      Just one of the many reasons to love working with Alpha... lotsa ways to get this stuff done.

      Here's another way using the Parent List option from the 2nd List you're creating.

      and here's the video from Selwyn about Cascading Lists
      Last edited by Davidk; 09-02-2013, 11:26 AM.


        Re: Mobile List - Drill Down Help

        Hey Guys,

        Thanks for both your suggestions! I tried David's and it worked like a charm. I think Steve's use of an Ajax call back will be very handy for more complex navigation needs in the future.




          Re: Mobile List - Drill Down Help

          Yup, also a good approach David. I've used it, it's nice.

          In the few cases I've done this, I want Panel2 to show a label or some indicator of what was chosen in Panel1, so in my example, I'm already getting and setting session.Area_Name so I can display at the top of my list "Select an Animal in the XYZ Area". For a variety of reasons I also need the session.Area_ID so I went the session variable route.


            Re: Mobile List - Drill Down Help

            Agreed... for simple links use the properties. For more involved stuff (and when isn't it more involved) an ajax callback is the way to go. You can even bind the arguments to session variables.