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Possible to have a list inside a list?

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  • Possible to have a list inside a list?

    Is it possible to have a list control inside a list control? Or something like a row expander but open for all rows?
    For instance in a Order/OrderProducts scenario i'd like a list that looks like:

    Order: 1234 Customer: ALFKI Date: 13/12/2019
    Product: Product1 Quantity: 1 Amount: 200$
    Product: Product3 Quantity: 2 Amount: 300$

    Order: 1235 Customer: JOHN Date: 13/12/2019
    Product: Product3 Quantity: 2 Amount: 300$

    In this sample my list has 2 rows, each row has 3 fields and the child list control with the products for each order...

    This is for an app that needs to run on a mobile, i don't have height limits for each order, but would like to have it all on 1 page instead of clicking then jumping to a panel with the child list like i do now...


  • #2
    Re: Possible to have a list inside a list?

    The list has grouping capabilities. I think what you want is a grouped list.


    • #3
      Re: Possible to have a list inside a list?

      See video UXL_V12--31 : List Control - Adding a 'Row Expander' to the List


      • #4
        Re: Possible to have a list inside a list?

        Thanks David. I saw that video prior to posting here, it shows/hides fields from the current list. What i need is to show a sub list of records for each row in the list.
        Larry that's actually a very good idea, i will in fact do like with reports for this case where the base query will run on the OrderProducts then group by OrderID. Many thanks!


        • #5
          Re: Possible to have a list inside a list?

          Are you looking to modify the list data or just view?


          • #6
            Re: Possible to have a list inside a list?

            You could call it "only view", because the data is modified by clicking on buttons ( mostly acknowledges that get updated using Ajax callbacks )


            • #7
              Re: Possible to have a list inside a list?

              I tried group breaks, not really workable in my scenario, i thought i could put some template for the group header with many fields and nice formatting, but seems very difficult. I may also need to put buttons in, i'm still looking for other ideas you may have


              • #8
                Re: Possible to have a list inside a list?

                You could use javascript. You can still have your list with detail view, etc., but don't have the list visible (keep on hidden panel card). You would have two lists related. In javascript create two arrays, one for the primary and one for the secondary. Create an HTML template to display the data in the format you want. So, use the list object but don't directly display it. Unfortunately, I don't have time today to hunt down any code for you, but it's out there! Happy Hunting. If you need assistance I can help after the Christmas holiday.


                • #9
                  Re: Possible to have a list inside a list?

                  If the detail records of the inner list do not have to be clickable, you could always display them as an HTML table inside your main list record.


                  • #10
                    Re: Possible to have a list inside a list?

                    One method you could use which is sort of an exploit but might work very well in a mobile application to "see" related records is to use a edit-combo lookup using a textbox in the detail view of the list. this saves visual space and doesn't increase the loading time because the lookup would only occur during the drop down - and you can format that to look like whatever you want.
                    so you create a textbox and setup an edit-combo like if you were going to lookup and fill in a field except you don't you just get a drop-down with the related orders by using a dynamic filter and then simply displaying the "list info" your looking for instead of setting up the additional overhead of a list.
                    to me that's the easiest way...with the least overhead affecting load time plus you can easily get fresh data with every look-up.
                    On the other hand it's not as you asked to be "in the list" to do that I would strongly recommend a view where you can pull anything into the list
                    NWCOPRO: Nuisance Wildlife Control Software My Application: "Without forgetting, we would have no memory at what was I saying?"