How to get value of dynamically created dropdownlist on server side code.

Question

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i want to display a selected ddl value in label .

XML

<script type="text/javascript">
        $(document).ready(function () {
            function addtextboxes(ddlId, tbdivId) {
                var count = $("#" + tbdivId + " input").size();
                var requested = parseInt($("#" + ddlId).val(), 10);

                if (requested > count) {
                    for (i = count; i < requested; i++) {
                        var $ctrl = $('<input/>').attr({ type: 'text', name: 'text', value: 'text' });
                        $("#" + tbdivId).append($ctrl);
                    }
                }
                else if (requested < count) {
                    var x = requested - 1;
                    if (requested == 0)
                        $("#" + tbdivId + " input").remove();
                    else
                        $("#" + tbdivId + " input:gt(" + x + ")").remove();
                }
            }

            var counter = 0;
            $('#roomconfig').hide();

            var index = 0;
            $('#guestsRoomsSelect').change(function () {

                if ($(this).val() === '0') {

                    var $var2 = '<div id="dropdown2_ ' + (counter) + ' " class="class1"> <div class="wrapadults" style="float:left"> <label class="lbl_sm" style="font-size: 0.75em" for="adults">Adults</label>'
                    $var2 = $var2 + '<br/><span> <span>     <select id="adults" class="t_adults" style="margin-left:7px;margin-right:7px; border-right: 0.5px solid #FFFFFF;">      <option value="1">1</option>        <option value="2" selected="selected">2</option>'
                    $var2 = $var2 + '<option value="3">3</option>       <option value="4">4</option>        <option value="5">5</option>        <option value="6">6</option>        <option value="7">7</option>'
                    $var2 = $var2 + '<option value="8">8</option>       <option value="9">9</option>        <option value="10">10</option>      </select>     </span>       </span>  </div>'
                    $var2 = $var2 + '<div class="children" style="float:left" > <label class="lbl_sm" style="font-size: .75em;" for="children">Children</label><br/> <span>  <select id="hc_f_children" class="hc_evt_children " style="border-right: 0.5px solid #FFFFFF;">'
                    $var2 = $var2 + '<option value="0" selected="selected">0</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option>'
                    $var2 = $var2 + '<option value="4">4</option> </select> </span>  </div> <div id="chileage" class="ch"></div>  </div>  </div>';
                    $("#Addition").prepend('<fieldset id="' + counter + '" data-index="' + index + '">' + $var2 + '</fieldset>');

                    //$('#hc_f_children').bind('change', function () {
                    //    var divId = "chileage";
                    //    addtextboxes(this.id, divId);
                    //});
                    counter = counter + 1;
                    index++;

                    $('#roomconfig').show(300);

                }
                else if ($(this).val() === '1-1' || $(this).val() === '3-1' || $(this).val() === '4-1' || $(this).val() === '2-2' || $(this).val() === '2-1') {

                    $('#roomconfig').hide(300);

                    $('#Addition fieldset :first').remove();
                }

            });
            var forage = 0;
            $(".addRoom").click(function () {
                // on add room event

                var $var1 = '<div id="dropdown2_ ' + (counter) + ' " class="class1"> <div class="wrapadults" style="float:left"> '
                $var1 = $var1 + '<span> <span>      <select id="adults" class="t_adults" style="margin-left:7px;margin-right:7px; border-right: 0.5px solid #FFFFFF;">      <option value="1">1</option>        <option value="2" selected="selected">2</option>'
                $var1 = $var1 + '<option value="3">3</option>       <option value="4">4</option>        <option value="5">5</option>        <option value="6">6</option>        <option value="7">7</option>'
                $var1 = $var1 + '<option value="8">8</option>       <option value="9">9</option>        <option value="10">10</option>      </select>     </span>       </span>  </div>'
                $var1 = $var1 + '<div class="children" style="float:left" > <span>  <select id="hc_f_children_' + forage + '" class="hc_evt_children " style="border-right: 0.5px solid #FFFFFF;" onselect="getIdvalue()">'
                $var1 = $var1 + '<option value="0" selected="selected">0</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option>'
                $var1 = $var1 + '<option value="4">4</option> </select> </span>  </div> <div id="chileage_' + forage + '" class="ch"></div>  </div>'
                $var1 = $var1 + '<div class="btnrmv" id="' + counter + '" > <a class="removeRoom " style=" width:30px; height:0px; margin:0px;left:200px;position:relative; top:-30px; background-image:none; color:#b11500;font-weight:normal;font-size:0.77em;" href="javascript:void(0);">remove<span></span> </a> </div>';

                $("#Addition").append('<fieldset id="' + counter + '" data-index="' + index + '"' + $var1 + '</fieldset>');

                //$('#hc_f_children_' + forage).bind('change', function () {
                //    var divId = "chileage_" + this.id.replace('hc_f_children_', '');
                //    addtextboxes(this.id, divId);
                //});

                counter++;
                index++;
                forage++;
                // for remove element
                $(".btnrmv").click(function () {
                    $("#roomconfig fieldset#" + this.id).remove();
                    counter--;

                });

              //  var Idvalue = null;
                // Add childage textbox
                //function getIdvalue() {
                //    Idvalue = $('.hc_evt_children').attr("id");
                //}

                //$(Idvalue).change(function () {

                //    var index1 = $(".ch input").size();
                //    var requested = parseInt($(".hc_evt_children").val(), 5);

                //    if (requested > index1) {
                //        for (i = index1; i < requested; i++) {
                //            var $ctrl = $('<input/>').attr({ type: 'text', name: 'text', value: '' });
                //            $("#chileage_" + forage).append($ctrl);
                //        }
                //    }
                //    else if (requested < index1) {
                //        var x = requested - 1;
                //        $("#chileage_ input:gt(" + x + ")").remove();
                //    }
                //});


            });

        });

        //$("slctroom").append(" <asp:DropDownList>Test </asp:DropDownList>");
    </script>

aspx page --------------------

XML

 <div id="guestsRooms" class="clear">
        <label class="label1" for="guestsRoomsSelect">Guests:</label>
        <span>
            <span>
                <select id="guestsRoomsSelect"  name="GuestsRooms" style="width: 217; padding: 5px">
                    <option value="1-1">1 adult</option>
                    <option selected="selected" value="2-1">2 adults in 1 room</option>
                    <option value="3-1">3 adults in 1 room</option>
                    <option value="4-1">4 adults in 1 room</option>
                    <option value="2-2">2 adults in 2 rooms</option>
                    <option value="0">Need more rooms or have children?</option>
                </select>
            </span>
        </span>
    </div>

 <div id="roomconfig" class="roomconfig_fc">
<div id="Addition">

</div>


       <div class="btnWrap" style="clear:both;border-bottom: 0.5px solid #FFFFFF;">
<a class="addRoom"  style="background-image:none; color:darkred;height:20px; margin-left:0px" href="javascript:void(0);"><%--<img  src="../Images/SearchBox/image1.png" class="addimage "  />--%>
Add room</a>

</div>


    </div>

button ------------

<asp:Button class="MyButton" ID="btnBook" runat="server" Text="ADD" OnClick="btnBook_Click" Width="126px" />

when click on that button selected value should be display on label ?????

Posted 27-Aug-15 2:02am

rajshekhar yadav

Updated 27-Aug-15 2:05am

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3 solutions

Solution 3

You can access form elements via their "name" property using Request.Form

C#

string val = Request.Form["GuestsRooms"]

Note you'll get the value of your dropdown, not the text, so you'll see "3-1" or something like that. If you want both then amend your options

XML

option value="3-1|3 adults in 1 room">3 adults in 1 room</option>

then on the server do a string.Split on the | to separate the value and the text. Google "c# string.Split" if you don't know how to use it.

Posted 28-Aug-15 0:47am

F-ES Sitecore

Solution 1

Mark the as runat = 'Server', the control will get accessible at server side code in C#

Posted 27-Aug-15 19:05pm

Dnyaneshwar_Ghodake

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aarif moh shaikh · Accepted Answer · 2015-08-27T19:26:00

Use OnClientClick of Button. For example.

<asp:button class="MyButton" id="btnBook" runat="server" text="ADD" onclientclick="myfun()" onclick="btnBook_Click" width="126px" xmlns:asp="#unknown">

HTML

<script>
  function myfun()
  {
   var e = document.getElementById("guestsRoomsSelect");
   var yourLabel = document.getElementById("yourLabelId");
   yourLabel  = e.options[e.selectedIndex].text;
  }
</script>

Regards,
AARIF SHAIKH