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POUpdating Html.Dropdownlists using JQuery
 

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    <p>I found this solution on here <a href="https://stackoverflow.com/questions/2782815/how-to-update-strongly-typed-html-dropdownlist-using-jquery">How to update strongly typed Html.DropDownList using Jquery</a> and am trying to implement it, but something is bugged in it.</p> <pre><code>$(function() { $('#cid').change(function() { var selectedCompany = $(this).val(); var ddl = $("#foid"); $.post("/TimeTracking/FilterFieldOffices", { companyId: selectedCompany }, function (data) { $(ddl).loadSelect(data); }); }); }); (function($) { $.fn.emptySelect = function() { return this.each(function() { if (this.tagName == 'SELECT') this.options.length = 0; }); } $.fn.loadSelect = function(optionsDataArray) { return this.emptySelect().each(function() { if (this.tagName == 'SELECT') { var selectElement = this; $.each(optionsDataArray, function(index, optionData) { var option = new Option(optionData.Text, optionData.Value); if ($.browser.msie) { selectElement.add(option); } else { selectElement.add(option, null); } }); } }); } })(jQuery); </code></pre> <p>My controller returns a select list of what i want.</p> <pre><code>public ActionResult FilterFieldOffices(int companyId = 0) { IList&lt;FieldOffice&gt; list = _fodp.GetFieldOfficesForCompany(companyId); var returnList = new SelectList(list, "Id", "FacilityName"); return Json(returnList); } </code></pre> <p>I know the .change function is firing by placing alerts, and i know that my controller function is being called through breakpoints, so that narrows it down to the loadselect function, however i cant narrow it down anymore, since no alerts will fire within the load select function. I dont have enough experience with JQuery to form an opinion on whats wrong. So im asking if anyone has had any success on what im trying to do, or if you can see something wrong with the code. And before anyone asks, yes i have checked the brackets.</p> <p><em>edit</em> Forgot to mention that i checked the error console for firefox and i get the error:</p> <pre><code>$(ddl).loadSelect is not a function. </code></pre> <p><em>edit</em> Found a resource that mentions that the error i described arises when you have two conflicting frameworks. So i put in jQuery.noConflict(); and it still does not work.</p>
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    1. USJohn Stuart
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    1. COAre you 100% sure that "foid" is really the "id" of your `<select>` element?
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    2. COYup. 100% sure.
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      1. USJohn Stuart
    3. CO@john - Remnant here (got your note). Looking at your code, nothing jumps out at me why you are having an issue. Only difference in my code to yours is that my controller returned a IEnumerable<SelectItemList>. That said, your SelectList looks fine to me...I'll spend a bit more time on this later if i can...
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