Employing jQuery Mobile with MVC3 for seamless auto-submit functionality

When I remove jQuery Mobile, the code works perfectly!

The form:

@using (Html.BeginForm("SearchTown", "Home", FormMethod.Post, new { id = "TheForm1" }))
{
    @Html.DropDownList("TownID", (SelectList)ViewBag.TownId, "Select a Town")
}

The Javascript:

<script type="text/javascript>
    $(function () {
        $("#TownID").live('change', function () {
            //$("#TownID").change(function () {
            var actionUrl = $('#TheForm1').attr('action') + '/' + $('#TownID').val();
            $('#TheForm1').attr('action', actionUrl);
            $('#TheForm1').submit();
        });
    });
</script>

However, when jQuery Mobile is added to the site and I submit the form, my log keeps adding the ID field again at the end of the URL string. This only happens in my log, not in the browser. In the browser, it still appears to be working fine! For example:

www.mysite.com/Home/SearchTown/2 the first time

www.mysite.com/Home/SearchTown/2/2 the second time

www.mysite.com/Home/SearchTown/2/2/2 the third time

In the browser, it still shows as www.mysite.com/Home/SearchTown/2

Why is jQuery Mobile causing this issue?

Answer №1

It seems like the issue you are facing is due to the repeated element IDs in the loaded page when submitting the form using AJAX. Each time the form is posted, a new page with the same form markup is rendered, causing multiple instances of #TheForm1 in the DOM.

When more than one #TheForm1 is present on the page, the selector will only return the first element with that ID, leading to unexpected URL modifications. To avoid this, consider using classes and referencing elements within the active page context in jQuery Mobile for better selection accuracy.

Alternatively, you can disable AJAX form enhancement by adding data-ajax="false" to maintain full page postback behavior without AJAX interference.

Additional Note:

Ensure to select the correct form element based on the currently visible page to prevent unintentional interactions with hidden elements. Utilize $.mobile.activePage to get the current page context and employ class-based selectors for precise targeting in event handlers.

Answer №2

Due to the nature of submitting the entire page and jQuery mobile's limitations, it is not recommended. Instead, after each POST, the ID is simply appended to the document.location. This has been my experience with various mobile projects.

Rather than using $('#TheForm1').submit();, consider implementing something like this:

var url = $('#TheForm1').attr('action') + '/' + $('#TownID').val();

$.post(url, $('#TheForm1').serialize(), function(data) {
    // Handle data if a response is received
    // Or navigate to another page using jQuery Mobile API
});

return false;

Answer №3

I've been waiting for a response to this question, but it seems like no one has an answer yet!

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