jQuery .load not working in ASP.Net MVC

Question

I am trying to do a jQuery AJAX call on a ASP.Net MVC page. I can step through the call back function in my debugger and see that the javascript is executing, but the does not update.

<asp:Content ID="Content2" ContentPlaceHolderID="MenuContent" runat="server">

<% Html.RenderPartial("homeMenu"); %>

<script type="text/javascript">
    InitHomeMenu('homeMenu', function (menuItem) {
        var id = menuItem.attr('id');
        if (id = 'menuMission') {
            $('homeContent').load('Home/Mission');
        }
        else if (id = 'menuSuggestions') {
            $('homeContent').load('Home/Suggestions');
        }

    });
</script>
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server">
    <div id="homeContent">
        <% string control = ViewData["Control"] != null ? ViewData["Control"].ToString() : "Mission";
        Html.RenderPartial(control); %>
    </div>
</asp:Content>

The call to $('homeContent').load() is working. I can confirm I have data, but the div does not update.

David Neale · Accepted Answer · 2010-12-05 22:04:35Z

5

Assuming that homeContent is the id of the div you need to prefix it with a hash:

 $('#homeContent').load('Home/Mission');

If it's the class then prefix it with a period:

$('.homeContent').load('Home/Mission');

JQuery uses CSS selectors.

--

If your AJAX call is failing then it will do so silently (you might be getting an error 500 from the server, this is hidden on AJAX calls unless you hook up an error delegate on the full .ajax JQuery method).

Check that data is being returned from the server using something like Fiddler.

edited Dec 5, 2010 at 22:04

answered Dec 5, 2010 at 16:42

David Neale

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2 Comments

Steve Over a year ago

Thanks, it is the id. I started with the hash, tried again, then changed 'homeContent' to be a class and tried with the period. None of it works. The JavaScript executes without errors.

David Neale Over a year ago

You might still be getting server errors, the script won't throw that. Try monitoring the web traffic using something like Fiddler2 to check that the data is being returned.

Sparky · Accepted Answer · 2010-12-05 22:13:26Z

3

Try replacing the = with ==

if (id = 'menuMission')

with

if (id == 'menuMission')

answered Dec 5, 2010 at 22:13

Sparky

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1 Comment

Steve Over a year ago

Thanks, and for the record I did also have to put the # symbol back in like David suggested.

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