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POWhat is wrong with this JavaScript (using Ajax call in MVC 3)?
 

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  1. POWhat is wrong with this JavaScript (using Ajax call in MVC 3)?
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    <p><em>Here is my JavaScript:</em></p> <pre><code>&lt;script type="text/javascript"&gt; $(function () { $("select#City_DDL_ID").change(function (evt) { if ($("select#City_DDL_ID").val() != "-1") { $.ajax({ url: "/Home/GetHotels", type: 'POST', dataType: "json", data: { id: $("select#City_DDL_ID").val() }, success: function (response) { // $('#Hotel_DDL_ID').attr('disabled', false); $("select#Hotel_DDL_ID").replaceWith(response); }, error: function (xhr) { alert("Something went wrong, pleae try again"); } }); } }); }); </code></pre> <p> <em>Here is the Index.cshtml:</em></p> <pre><code>@model RoomReservation.Webb.Models.HomeViewModel @{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } &lt;h2&gt;Index&lt;/h2&gt; &lt;fieldset&gt; &lt;legend&gt;Select a city and a hotel&lt;/legend&gt; &lt;br /&gt; &lt;br /&gt; &lt;br /&gt; @Html.DropDownListFor(x=&gt;x.City_DDL_ID, new SelectList(Model.AllCities, "Value", "Text"),"...pick a city..." ) &lt;br /&gt; &lt;br /&gt; @Html.DropDownListFor(x =&gt; x.Hotel_DDL_ID, Enumerable.Empty&lt;SelectListItem&gt;(), "...pick a hotel...", new { disabled = "disabled"}) &lt;br /&gt; &lt;br /&gt; &lt;/ fieldset&gt; </code></pre> <p><em>And here is the method that ajax calls:</em></p> <pre><code>public JsonResult GetHotels(int id) { if (id &gt; 0) { var hotels = bl.ReturnAllHotelsInCity(id); return Json(hotels); } else { throw new Exception("Hotel not reachable, please try again"); } } </code></pre> <p>After selecting City in City_DDL_ID, my Hotel_DDL_ID disapperas. Can you help me, I am new in javasrcipt and ajax?</p> <p>Here is the newset script, and still not working:</p> <pre><code>&lt;script type="text/javascript" language="javascript"&gt; $('#City_DDL_ID').change(function () { var selectedCity = $(this).val(); if (selectedCity != null &amp;&amp; selectedCity != '-1') { $.getJSON('@Url.Action("GetHotels")', { id: selectedCity }, function (hotels) { var hotelsSelect = $('#Hotel_DDL_ID'); hotelsSelect.empty(); $.each(hotels, function (index, hotel) { hotelsSelect.append($('&lt;option/&gt;', { value: hotel.Value, text: hotel.Text })); }); $('#Hotel_DDL_ID').attr('disabled', false); }); } }); &lt;/script&gt; </code></pre> <p>So, what to do?</p> <p>Thank you all for your help, this latest script of mine is working, I change the default browser to Chrome. Thank you all once again Cheers</p> <p>P.S. Admin:How to mark question as answered?</p>
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    1. COWith this type of problem, its best to break it down into smaller parts. Simplify you client/server into I/O params. Request the json manually to verify that the server side is taking care of its job. On the client side, start with your selectors. console.log is your friend. Check the request that is being made in the networking tab in your browser. And also be sure that you inspect the actually HTML to ensure your working with the the elements you thought you were.
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    2. COYes, but hoew to do al that, how to call manually json response, where to write console log, and where is networking tab? Thanks
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    3. COI have a new script
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