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Editable dropdown list is working fine in direct aspx..

if i used in master page.. i am not getting result.....

see this code..

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
    <link href="../StyleSheet/Table.css" rel="stylesheet" type="text/css" />

    <script type="text/javascript" src="../JS/Validations.js"></script>

    <script src="../JS/DateValidation.js" type="text/javascript"></script>

    <meta charset="utf-8">
    <link rel="stylesheet" href="//">

    <script src="//"></script>

    <script src="//"></script>

        (function($) {
            $.widget("custom.combobox", {
                _create: function() {
                    this.wrapper = $("<span>")


                _createAutocomplete: function() {
                    var selected = this.element.children(":selected"),
          value = selected.val() ? selected.text() : "";

                    this.input = $("<input>")
          .attr("title", "")
          .addClass("custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left")
              delay: 0,
              minLength: 0,
              source: $.proxy(this, "_source")
              tooltipClass: "ui-state-highlight"

                    this._on(this.input, {
                        autocompleteselect: function(event, ui) {
                            ui.item.option.selected = true;
                            this._trigger("select", event, {
                                item: ui.item.option

                        autocompletechange: "_removeIfInvalid"

                _createShowAllButton: function() {
                    var input = this.input,
          wasOpen = false;

          .attr("tabIndex", -1)
          .attr("title", "Show All Items")
              icons: {
                  primary: "ui-icon-triangle-1-s"
              text: false
          .addClass("custom-combobox-toggle ui-corner-right")
          .mousedown(function() {
              wasOpen = input.autocomplete("widget").is(":visible");
          .click(function() {

              // Close if already visible
              if (wasOpen) {

              // Pass empty string as value to search for, displaying all results
              input.autocomplete("search", "");

                _source: function(request, response) {
                    var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
                    response(this.element.children("option").map(function() {
                        var text = $(this).text();
                        if (this.value && (!request.term || matcher.test(text)))
                            return {
                                label: text,
                                value: text,
                                option: this

                _removeIfInvalid: function(event, ui) {

                    // Selected an item, nothing to do
                    if (ui.item) {

                    // Search for a match (case-insensitive)
                    var value = this.input.val(),
          valueLowerCase = value.toLowerCase(),
          valid = false;
                    this.element.children("option").each(function() {
                        if ($(this).text().toLowerCase() === valueLowerCase) {
                            this.selected = valid = true;
                            return false;

                    // Found a match, nothing to do
                    if (valid) {

                    // Remove invalid value
          .attr("title", value + " didn't match any item")
                    this._delay(function() {
                        this.input.tooltip("close").attr("title", "");
                    }, 2500);
                    this.input.autocomplete("instance").term = "";

                _destroy: function() {

        $(function() {
            $("#toggle").click(function() {

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">

            <div class="ui-widget">
                <asp:DropDownList ID="combobox" runat="server">
        <asp:ImageButton runat="server" ID="imgbtn" ImageUrl="~/images/gobutton_red.gif"
            OnClick="imgbtn_Click" Style="height: 16px" />

    <%-- <br />
Updated 19-Sep-14 19:27pm

1 solution

my first guess is that you have an order issue.

you have the javascript being run before the control is loaded into the page. having javascript run like this is usually something that you want done at the bottom of the page.

if you really want it at the top like this then I would wrap it up inside of event handler.

something like....

$(document).ready(function() {
   // put your code here that you want run when the page loads. 
Share this answer
Siva Hyderabad 20-Sep-14 1:33am    
but same code works in aspx page...and i bind dropdownlist in page load event..I think it may be master page problem?
Dennis E White 20-Sep-14 1:34am    
I think it's just a timing issue of how the page is rendered and delivered from the server.

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