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Techno Kid

Multiple Select List - Order of Results and Repeat Searches.

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Hi.

I am familiar with some HTML but my knowledge in Javascript, JQuery and CSS is very limited. I have been learning from examples on the web and making my own changes. Please see the fiddle I am working on below; sorry if the full code is messy!

https://jsfiddle.net/djj2c84t/

There are a number of features I wish to implement but I am totally stumped! I have gotten as far as I think I can with the fiddle above and it would be more than appreciated if anyone can provide any help, possibly with any example code and where the code needs to go.

When I make a multiple selection from the list, how do I get the results (divs) to show in order of most recent selection at the top? For example, if I multi-selected in the order Nuts, Meats, Vegetables, Fruits, how do I get the results (divs) to appear in the order Fruits, Vegetables, Meats, Nuts? At the moment they appear in the order that they are listed in the box.

I would also like to ask if it is possible to keep the results (divs) showing for all the items selected even after a new search is performed and a new selection made. For example, if I search for 'F' and select 'Fruits' and then search for 'V' and select 'Vegetables', can I have both the 'Vegetables' and 'Fruits' divs showing in the results? At the moment, 'Vegetables' replaces 'Fruits'. If this is possible, would it also be possible to have the selected items in the list remain highlighted even after a new search is performed? For example, after making the above searches/selections, if I then search for 'ts', the list would show 'Fruits', 'Nuts' and 'Meats', but I would like 'Fruits' to still be highlighted and to be able to close the 'Fruits' div by de-selecting 'Fruits' from the list or clicking the Close (X) button on the 'Fruits' div itself.

There are a few other things I have not been able to solve but I will refrain from posting too many questions at once.

Any help would be greatly appreciated!

Thank you.

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Because they show as the order they are laid out from the beginning. There are several ways to do this, but will involve cloning the current hidden divs, in the order they were selected, removing the original hidden selected and then appending cloned divs in correct selected order.

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Thanks for your reply, dsonesuk. Sorry for my late response; have been attempting to figure out what to do with your instructions.

Please don't laugh, but are any of the following remotely close to anything I need to use in my code?

Thanks.

$(".mydivs1").clone()
removeClass('.mydivs1')
addClass('.mydivs1clone')
.prependTo("body");

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First of all you can't have multiple id references, or spaces within id value, and as id must be unique within a page, you have to clone a element with unique id and temporarily apply it to variable, then remove original, then prepend temporarily cloned to a surrounding container which would make it easy to control placement and order.

But first you will need an array that will store id references, that do not currently exist, in order they were selected, then looping this array you can temp clone, remove original, prepend clone.

 

 

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var SelOrderArray=[];

$.each($selected,function(i){  //loop through selected possible multiple selected options

	if(SelOrderArray.indexOf($selected[i]) === -1){  //if current looped through $selected value not in array then add to array

	SelOrderArray.push($selected[i]);

	}

});

// loop through ordered array of slected options
$.each(SelOrderArray,function(i){  

//clone element with specific id to temp storage variable
	var TmpDivClone = $("#"+SelOrderArray[i]).clone(); 

//remove current existing element with specific id
	$("#"+SelOrderArray[i]).remove(); 

// prepend temp cloned element to div #result wrapping mydiv1 elements so prepending remains below dropdown and show
	TmpDivClone.prependTo('#result').show();

}); 

 

Not tested, written on tablet

Edited by dsonesuk
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Hi dsonesuk.

Thank you for taking the time to write this for me; I really appreciate it! There is absolutely NO WAY I would've learnt what you have written in the time I need to have the code ready by! This has just been a one-off project and I have just been managing by manipulating existing examples, etc. I haven't had much time to start to 'learn' JS/JQuery, which you have probably guessed from my questions!

Anyhow, have you managed to test the code? I have copied and pasted it in various places within the existing code but nothing is happening. There is not likely to be anything wrong with your code, but my lack of knowledge of where it is supposed to be placed!

Do I need to replace any of the text in your code with text specific to my data?

Thanks.

 

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Had to make slight change, correct invalid html, which you should validate at https://validator.w3.org/ before posting

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta name="viewport" id="viewport" content="target-densitydpi=high-dpi,initial-scale=1.0" />
        <title>Document Title</title>
        <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
        <script  type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.4/jquery-ui.min.js"></script>

        <style type="text/css">
            #mydropdown option:hover {
                background: #c8c8c8;
            }

            #mydropdown option {
                padding: 5px;
            }

            .mydivs1 {
                display: none;
            }

            br {
                display: block;
                content: "";
                margin-top: 5px;
            }

            .mydivs1 {
                border: 1px solid black;
                padding: 5px;
                height: 211px;
                width: 172px;
                margin-left: 5px;
                background-color: #ff8080;
            }

            .mydivs2 {
                border: 1px solid black;
                padding: 5px;
                height: 199px;
                width: 35px;
                float: left;
                background-color: #b3e6b3;
            }

            .mydivs3 {
                border: 1px solid black;
                height: 199px;
                width: 103px;
                margin-left: 52px;
                padding-left: 10px;
                padding-right: 5px;
                padding-top: 5px;
                padding-bottom: 5px;
                background-color: #cce6ff;
            }

        </style>
    </head>
    <body>


        <input type="text" id="mytextbox" placeholder="Search Foods">
        <p></p>
        <select id="mydropdown" multiple="multiple">

            <option value="optionx_Fruits">Fruits</option>
            <option value="optionx_Vegetables">Vegetables</option>
            <option value="optionx_Nuts">Nuts</option>
            <option value="optionx_Meats">Meats</option>

        </select>

        <p></p>
        Results:
        <p></p>
        <div id="results">
            <div class="mydivs1" id="optionx_Fruits"> <!--match="optionx Fruits"-->

                <div class="mydivs2">
                    <button class="button1">X</button>
                    <p style="clear:both"></p>
                    <button class="button2">C</button>
                </div>

                <div class="mydivs3">
                    <span class="myspan1">Fruits</span>
                    <p></p>
                    <span class="myspan2">1:</span>
                    <br>
                    <span class="myspan3">Avocados</span>
                    <p></p>
                    <span class="myspan2">2:</span>
                    <br>
                    <span class="myspan3">Blackberries</span>
                    <p></p>
                    <span class="myspan2">3:</span>
                    <BR>
                    <span class="myspan3">Raspberries</span>
                </div>
                <p></p>

            </div>
            <p></p>

            <div class="mydivs1" id="optionx_Vegetables"> <!--match="optionx Vegetables"-->

                <div class="mydivs2">
                    <button class="button1">X</button>
                    <p style="clear:both"></p>
                    <button class="button2">C</button>
                </div>

                <div class="mydivs3">
                    <span class="myspan1">Vegetables</span>
                    <p></p>
                    <span class="myspan2">1:</span>
                    <br>
                    <span class="myspan3">Beets</span>
                    <p></p>
                    <span class="myspan2">2:</span>
                    <br>
                    <span class="myspan3">Eggplants</span>
                    <p></p>
                    <span class="myspan2">3:</span>
                    <BR>
                    <span class="myspan3">Spinach</span>
                </div>
                <p></p>

            </div>
            <p></p>

            <div class="mydivs1" id="optionx_Nuts"> <!--match="optionx Nuts"-->

                <div class="mydivs2">
                    <button class="button1">X</button>
                    <p style="clear:both"></p>
                    <button class="button2">C</button>
                </div>

                <div class="mydivs3">
                    <span class="myspan1">Nuts</span>
                    <p></p>
                    <span class="myspan2">1:</span>
                    <br>
                    <span class="myspan3">Almonds</span>
                    <p></p>
                    <span class="myspan2">2:</span>
                    <br>
                    <span class="myspan3">Pecans</span>
                    <p></p>
                    <span class="myspan2">3:</span>
                    <BR>
                    <span class="myspan3">Walnuts</span>
                </div>
                <p></p>

            </div>
            <p></p>

            <div class="mydivs1" id="optionx_Meats"><!--match="optionx Meats"-->

                <div class="mydivs2">
                    <button class="button1">X</button>
                    <p style="clear:both"></p>
                    <button class="button2">C</button>
                </div>

                <div class="mydivs3">
                    <span class="myspan1">Meats</span>
                    <p></p>
                    <span class="myspan2">1:</span>
                    <br>
                    <span class="myspan3">Chicken</span>
                    <p></p>
                    <span class="myspan2">2:</span>
                    <br>
                    <span class="myspan3">Fish</span>
                    <p></p>
                    <span class="myspan2">3:</span>
                    <BR>
                    <span class="myspan3">Turkey</span>
                </div>
                <p></p>

            </div>
        </div>
        <p></p>
        <!-- Original script -->
        <script type="text/javascript">

            /*   jQuery.fn.filterByText = function(mytextbox) {
             return this.each(function() {
             var select = this;
             var options = [];
             $(mydropdown).find('option').each(function() {
             options.push({
             value: $(this).val(),
             text: $(this).text()
             });
             });
             $(mydropdown).data('options', options);
             $(mytextbox).bind('change keyup', function() {
             var options = $(mydropdown).empty().data('options');
             var search = $.trim($(this).val().replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"));
             var regex = new RegExp(search, "gi");

             $.each(options, function(i) {
             var option = options[i];
             if (option.text.match(regex) !== null) {
             $(mydropdown).append(
             $('<option>').text(option.text).val(option.value)
             );
             }
             });

             });
             });
             };

             $(function() {
             $('#mydropdown').filterByText($('#mytextbox'), true);
             });*/

            /* $(document).ready(function() {
             function exists(elemt, arr) {
             return (jQuery.inArray(elemt, arr) > -1);
             }

             $('#mydropdown').change(function() {
             var $selected = $(this).val();
             $('.mydivs1').each(function() {
             $(this).toggle()[
             (exists($(this).attr('match'), $selected)) ? 'show' : 'hide']();
             });
             });
             });*/


        </script>

        <!--NEW Script -->

        <script>
            var SelOrderArray = [];
            $('#mydropdown').on('change keyup', function() {

                $('.mydivs1').hide();
                var $selected = $(this).val();


                if ($selected.length > 0) {
                    $.each($selected, function(i) {  //loop through selected possible multiple selected options

                        if (SelOrderArray.indexOf($selected[i]) === -1) {  //if current looped through $selected value not in array then add to array

                            SelOrderArray.push($selected[i]);

                        }

                    });
                }
                else
                {
                    SelOrderArray.push($selected[i]);
                }

// loop through ordered array of slected options
                $.each(SelOrderArray, function(i) {

//clone element with specific id to temp storage variable
                    var TmpDivClone = $("#" + SelOrderArray[i]).clone();

//remove current existing element with specific id
                    $("#" + SelOrderArray[i]).remove();

// prepend temp cloned element to div #result wrapping mydiv1 elements so prepending remains below dropdown and show
                    TmpDivClone.prependTo('#results').show();

                });
            });
        </script>



    </body>
</html>

 

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Thanks again, dsonesuk!

The code will be used on IE and Chrome, however, I am using an old version of FF at present and and won't be able to test on IE/Chrome until I can access them in a few days.

Anyhow, in the meantime, what is happening at my end is:

-The items are showing up in the order I wish them to (most recent at top), however, if I click an item, then deselect it and then select another item, both items appear. I also cannot then deselect just one of them, if I click the first one selected, nothing happens (the item still remains) and if I click the second (last) one selected, both items get deselected (disappear).

-The filter as you type isn't working.

-There are no gaps between each result div.

As mentioned, I'm not sure how much of the above is to do with my old browser. May I ask which browser and version you are using?

Thanks.

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Then you would have to make tmp duplicate array, of the array of ordered selected items, loop though selected items from dropdown and if identical remove, you should end up with last item deselected. Then remove this item from original array of selected items. Use .indexOf() to find matching values.

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