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List Filter with RegExp

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  • List Filter with RegExp

    Three of us have spent the evening, and can't figure out how to filter a list with RegExp as we want (not having success with any other methods either).

    So, we have a list with a single field DataPoint.

    This works if the field equals "RBC"

    var lObj = {dialog.object}.getControl('Source');
            DataPoint: RegExp('RBC,'i')
    But challenge 1 is for when the field contains RBC - can't make that work. And what we're really going to need is when the field contains RBC and SomeOtherPhrase.

    I've done a hundred of these using other filter methods but not today. Anyone know how to make this work?


  • #2
    Re: List Filter with RegExp

    Check Syntax missing '

    DataPoint: RegExp('RBC,'i')
    if all else fails use
    var searchFor = {dialog.object}.getValue('Search');
    var listObj = {dialog.object}.getControl('SOURCE');
    Insanity: doing the same thing over and over again and expecting different results.
    Albert Einstein, (attributed)
    US (German-born) physicist (1879 - 1955)


    • #3
      Re: List Filter with RegExp

      That's just a typo in my message here Pete.

      We're still interested in how to do this with RegExp, and/or using two search terms.

      We're still interested in the proper syntax here for a RegExp "contains" expression.

      The last example you gave only allows one search term.

      I've done this many times before but am having no success with this one.


      • #4
        Re: List Filter with RegExp

        It's not clear what you're looking for.

        If you have a List with 2 rows... and a field with data...

        RBC Bank of Canada
        RBC Investments

        You want to filter the List by supplying the filter params as, for example, 'RBC' and 'Bank', which would return 1 row. Filtering on RBC would return 2 rows.

        Is this what you're looking for?

        BTW... DataPoint: RegExp('RBC','i')... is a 'contains' filter.
        Last edited by Davidk; 03-08-2016, 02:50 AM.


        • #5
          Re: List Filter with RegExp

          It's a list of medical datapoints. So, I'm supplying the user with two Search fields -- not the usual single field. The user may enter "RBC" in the first Search field (red blood cell count). But, that may return too many results, so in the second Search field, they may want to add the another term such as "Gastric". This will then further filter that list down to the medical datapoint(s) that are both RBC and Gastric.

          Right now I'm hoping I can manage all this well enough on the client side -- we'll see how big that list gets.


          • #6
            Re: List Filter with RegExp

            In order to perform a 'CONTAINS, 'AND', filter on a field of data in a List control, you can do this...

            var lObj = {dialog.object}.getControl('list1');
            var filter1 = {dialog.Object}.getValue('filterFld1');
            var filter2 = {dialog.Object}.getValue('filterFld2');
            var reFilter1 = RegExp(filter1, 'i');
            var reFilter2 = RegExp(filter2, 'i');
            	var f1 = data.LASTNAME == null?"":data.LASTNAME;
            	var f2 = data.LASTNAME == null?"":data.LASTNAME;
            	if(f1.match(reFilter1) && f2.match(reFilter2)) return true; // yes, show this row
            		else return false; // no, hide this row
            This code runs off a button outside the List Control.
            We grab the List control, and the values we want to filter.
            Then we turn those filter values into Regular Expressions.
            Then we perform a .setFilter on the List using the function option.
            In the function we get the data (in my case, the List column LASTNAME (watch the case here))
            If the data matches our 1st RegExp AND the data matches our 2nd RegExp then the row is included in the filtered List.

            So... given this data... as 4 rows

            RBC Gastric
            RBC and Gastricitis
            Normal RBC

            then filter values of rbc and gastric will return 2 rows
            filter values of just rbc will return 4 rows
            Last edited by Davidk; 03-08-2016, 08:54 PM.


            • #7
              Re: List Filter with RegExp

              Thanks very much for this David. I had also attempted this approach but didn't quite get there. With a couple small changes it helped me get what I needed.


              • #8
                Re: List Filter with RegExp

                David is the man, must have a 36 hour day clock. Well done.
                Insanity: doing the same thing over and over again and expecting different results.
                Albert Einstein, (attributed)
                US (German-born) physicist (1879 - 1955)


                • #9
                  Re: List Filter with RegExp

                  Also a point to note:

                  REMEMBER: Within setFilter, fieldnames are case sensitive.