Automatic Logout on Ajax call in ASP.net

Question

I have a dropdownlist with different soccer Clubs from my database. When I select one, an ajax call will be made to show all the Games that Club will play in.

The problem is whenever I'm logged on as an AspNetUser I automatically get logged off the second I submit the dropdownlist.

When I'm not logged in everything works as it should.

I'm really confused why exactly this happens.

Controller

[Authorize]
public class WedstrijdController : Controller
{

    [AllowAnonymous]
    public ActionResult Index()
    {
        ploegService = new PloegService();
        ViewBag.PloegId = new SelectList(ploegService.All(),
            "Id", "Naam");
        return View();
    }

    [AllowAnonymous]
    public ActionResult IndexAjax(int? ploegId)
    {
        if (ploegId == null)
        {
            return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
        }
        wedstrijdService = new WedstrijdService();
        var wedstrijden = wedstrijdService.WedstrijdenByPloeg(Convert.ToInt16(ploegId));
        return PartialView("_SearchWedstrijdenPartial", wedstrijden);
     }
}

Index.cshtml

@{
    ViewBag.Title = "Lijst";
}


<h2>Wedstrijden</h2>

<div class="panel panel-default">
    <div class="panel-heading">Kies een wedstrijd</div>
    <div class="panel-body">
        @using (Ajax.BeginForm("IndexAjax", "Wedstrijd",
        new AjaxOptions
        {
            InsertionMode = InsertionMode.Replace,
            HttpMethod = "POST",
            LoadingElementId = "ajax-loader",
            UpdateTargetId = "searchresults",
        }))
        {
        <div class="form-horizontal">
            <div class="form-group">
                @Html.Label("Ploeg", htmlAttributes: new { @class = "control-label col-md-1" })
                <div class="col-md-10">
                    @Html.DropDownList("PloegId", null, "---Kies ploeg---", htmlAttributes: new { @class = "form-control" })
                    <img id="ajax-loader"
                         src="@Url.Content("~/content/Images/ajax-loader.gif")"
                         style="display: none" />
                </div>
            </div>
        </div>
        }
        <div id="searchresults"></div>
    </div>
</div>


@section scripts
{@Scripts.Render("~/bundles/jqueryUnobtrusive")
    <script>
        $("#PloegId").on("change",
            function() {
                $("form").trigger("submit");
            });
    </script>
}

_SearchWedstrijdenPartial.cshtml

@model IEnumerable<VoetbalMVC.Models.Wedstrijd>

<table class="table">
    <tr>
        <th>
            Thuisploeg
        </th>
        <th>
            Bezoekersploeg
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Stadion)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Datum)
        </th>
        <th></th>
    </tr>

@foreach (var item in Model)
{
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Ploeg1.Naam)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Ploeg.Naam)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Stadion.Naam)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Datum)
        </td>
        <td>
            @Html.ActionLink("Order tickets", "Detail", new { wedstrijdId = item.Id })
        </td>
    </tr>
}
</table>

trashr0x · Accepted Answer · 2018-05-18 07:07:12Z

Indeed, by using the $("form") jQuery selector you are targeting all form elements on the page. You can verify the forms being submitted from the client to the server with tools like Fiddler, Postman, or the developer tools of your browser (by hitting F12 or CTRL+Shift+I on Windows/Linux, or Command+Option+I on Mac).

As far as the logout form is concerned, if you haven't customized the folder/file structure of your MVC project, it should be located in Views/Shared/_LoginPartial.cshtml:

@using Microsoft.AspNet.Identity
@if (Request.IsAuthenticated)
{
    using (Html.BeginForm("LogOff", "Account", FormMethod.Post, new { id = "logoutForm", @class = "navbar-right" }))
    {
        // ...
    }
}

..so it is generating a form with an ID of #logoutForm, but since you are submitting all forms at once, you are subsequently logging out the user each time.

This means you need to modify the call to only submit the form you want. Assuming the ID of your form being AjaxForm, you would do:

$("#AjaxForm").trigger("submit");

Josh Mein · Accepted Answer · 2018-05-17 20:51:46Z

1

This piece of code was causing the error

 $("form").trigger("submit");

As you can see this includes all forms. I suspect this means the logout button is included in some sort of form which triggers this action when logged in. Simply add an Id to your AjaxForm and only trigger the submit of that AjaxForm.

edited May 17, 2018 at 20:51

Josh Mein

28.6k15 gold badges79 silver badges89 bronze badges

answered May 17, 2018 at 20:27

wolfvandenkush

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