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List Control - Multi Select - Does it create an array?

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  • List Control - Multi Select - Does it create an array?

    Hey All!

    Does anyone know if when multiple rows are selected in a List Control, if an array is created? If so I am wondering how to get a pointer to the array so that I can perform batch actions on the records in the list control. If anyone knows and can point me in the right direction, that'd be awesome!


  • #2
    Re: List Control - Multi Select - Does it create an array?

    Yes, you get an array in xbasic in the e.dataSubmitted.YOUR_FIELD
    Be careful when trying to see if any items were actually selected or not. I had to override the value returned by array.size(), by checking the first element against empty string:

    dim slctDSCnt as N
    slctDSCnt = e.DataSubmitted.LIST_DS.size()
    '-- Silly Alpha will give us an array with one blank element when there is no selection. 
    '--  Unless, this is just because I was running in W/P and there were no elements to even select from in list.
    if slctDSCnt = 1
    	if e.DataSubmitted.LIST_DS[1] = ""
    		slctDSCnt = 0  
    	end if
    end	if
    I used the info in vide UX_V12--110 to add a checkmark to each selected row in the list. However, the demonstrated code has a problem when used with container windows -- the checkmarks can remain visible when the container window is closed!!!


    • #3
      Re: List Control - Multi Select - Does it create an array?

      Thanks for the info! Is it possible to access the pk in the array so that I can make sure that my actions apply to only those records selected?


      • #4
        Re: List Control - Multi Select - Does it create an array?

        You don't say how or where you want to use the data... but if it's client-side there's a number of arrays in the List object that are interesting. For example, from a button on your UX...

        var lObj = {dialog.Object}.getControl('LIST1');

        lObj.selection will give you a zero-based array of selected row numbers.
        lObj.selectionData will give you an array of objects... data for all the selected rows
        lObj.value will give you an array of the return field values


        • #5
          Re: List Control - Multi Select - Does it create an array?

          Thanks for the reply David. I want to use the data in an xbasic function


          • #6
            Re: List Control - Multi Select - Does it create an array?

            Thanks a lot guys, I really should've thought about looking at e.dataSubmitted.my_list

            Have a good night!


            • #7
              Re: List Control - Multi Select - Does it create an array?

              Trying to loop through and in the debugger I see the correct size but when I try to do a simple alert with the pk for each row it is only returning the very last PK from the list. Does anything look off?

              dim cnt as N
              cnt = e.dataSubmitted.work_orders.size()
              dim i as n
              arr = e.dataSubmitted.work_orders
              for i = 1 to cnt
              pk = e.dataSubmitted.work_orders[i]
              listData = "alert('"+js_escape(pk)+"');"	
              next i

              I ran through it again in the debugger and I see it loop through each, I expected it to return an alert for each iteration but I guess it doesn't behave that way.
              Last edited by coleresources; 02-16-2016, 02:17 PM.


              • #8
                Re: List Control - Multi Select - Does it create an array?

                What do you see with the xbasic debug?
                Al Buchholz
                Bookwood Systems, LTD
                Weekly QReportBuilder Webinars Thursday 1 pm CST

                Occam's Razor - KISS
                Normalize till it hurts - De-normalize till it works.
                Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
                When we triage a problem it is much easier to read sample systems than to read a mind.
                "Make it as simple as possible, but not simpler."
                Albert Einstein



                • #9
                  Re: List Control - Multi Select - Does it create an array?

                  An Ajax Callback has just 1 return... the server-side code completes... and then returns... once. This code will build a text list of selected row keys within a loop and when the loop is done, return that info in an alert.

                  if e.dataSubmitted.work_orders[1] = "" then
                  	listData = "alert('No Work Orders selected');"
                  end if
                  dim listCnt as n
                  dim i as n
                  dim msg as c = ""
                  listCnt = e.dataSubmitted.work_orders.size()
                  for i = 1 to listCnt
                  	msg = msg + e.dataSubmitted.work_orders[i] + "\n"
                  next i
                  listData = "alert('" + msg + "');"


                  • #10
                    Re: List Control - Multi Select - Does it create an array?

                    Thanks a lot David!