Synchronous XMLHttpRequest deprecated blocking HttpPost ActionResult - javascript

I recently added jquery references to a project, and now the Post from a View is not triggering. The Post ActionResult saved user-chosen settings, and now a break point inside the Post isn't being hit. There's no error in Visual Studio, but Chrome's Console outputs the warnings "Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/." and "Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated."
The code ran before jquery, so is the problem related to those warnings, some other aspect of jquery, or possibly something else? Suggestions here, here, and here offer possible solutions to the asynchronous warnings, but would, say, adding async to the new declarations in the Layout trigger the Post again? Thanks in advance to all.
The View:
#using Project.Data
#model Project.Models.PreferencesModel
#{
ViewBag.Title = "Preferences";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<div class="page_bar clearfix">
<div class="row">
<div class="col-md-8">
<h1 class="page_title">
<i class="fa fa-gears"></i> Preferences
</h1>
</div>
</div>
<div class="page_content">
<div class="container-fluid">
<form data-parsley-validate>
#using (Html.BeginForm("Preferences", "Manage", FormMethod.Post, new { id = "PreferencesForm", autocomplete = "on", data_parsley_validate = "data-parsley-validate" }))
{
#Html.AntiForgeryToken()
#Html.HiddenFor(m => m.PreferenceID)
#Html.HiddenFor(m => m.PreferenceCreatedBy)
#Html.HiddenFor(m => m.PreferenceCreatedDate)
<div class="row">
<div class="col-lg-12">
<div class="panel panel-default">
<div class="panel-body">
<div class="col-md-4">
#Html.LabelFor(m => m.PricingPreferenceTypeID, "Pricing Preference Type")
#Html.DropDownListFor(m => m.PricingPreferenceTypeID, StaticCache.GetPricingPreferenceTypes(), new { #class = "form-control", data_parsley_required = "true" })
#Html.ValidationMessageFor(m => m.PricingPreferenceTypeID)
</div>
<div class="col-md-4">
#Html.LabelFor(m => m.PricingStrategyID, "Pricing Strategy")
#Html.DropDownListFor(m => m.PricingStrategyID, StaticCache.GetPricingStrategies(), new { #class = "form-control", data_parsley_required = "true" })
#Html.ValidationMessageFor(m => m.PricingStrategyID)
</div>
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-lg-12 text-right">
<button type="submit" class="btn btn-success btn-large">Save</button>
</div>
</div>
}
</form>
</div>
</div>
The Layout contains these new declarations:
<script src="~/Scripts/jquery-2.1.3.js"></script>
<script src="/Scripts/jquery-ui-1.11.4.js"></script>
Finally, the previously working Controller:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Preferences(PreferencesModel model)
{
ProjectEntities projectDb = new ProjectEntities();
projectDb.uspAddPreference(DateTime.Now, model.PricingStrategyID, null, null, model.PricingPreferenceTypeID);
return RedirectToAction("Preferences");
}
EDIT
This piece of jquery was added to the bottom of the View to make one dropdown dependent on the other, but the break point inside the HttpPost ActionResult is still not hit. What could be causing this?
#section Scripts{
<script>
$(function () {
var $dropdownInput = $("#PricingStrategyID");
$("#PricingPreferenceTypeID").change(function () {
if (this.value != 1) {
$dropdownInput.hide();
} else {
$dropdownInput.show();
}
}).change();
});
</script>
}
2nd EDIT
Save button included in original view.

The answer to this seems to be a nested form tag that eluded detection. Once it was removed, the Post worked fine.

Related

ASP.NET MVC Multiple registration forms submitting issue

I have multiplebutton in one view for now.
For example, Admin and Student.
If I click the Adminbutton, the view will show a popup modal-dialog of the Admin registration form and the same goes to Student.
The following is the code that I written in cshtml:
#using (Html.BeginForm("Register", "Account", FormMethod.Post, new { #class = "form-horizontal", role = "form" }))
{
#Html.AntiForgeryToken()
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="container">
-- the button | admin --
Admin Modal
<div class="modal fade" id="AdminModal" style="width:auto">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
×
<h3 class="modal-title" >Admin Modal</h3>
</div>
<div class="modal-body">
<form id="AdminForm">
-- with other textfields ---
-- and DropDownList for selecting User role, eg. Admin/Student --
</form>
</div>
<div class="modal-footer">
Cancel
<input type="reset" value="Submit" class="btn btn-success" id="btnSubmit" />
</div>
</div>
</div>
</div>
</div>
<div class="container">
-- the button | student --
Student Modal
<div class="modal fade" id="StudentModal" style="width:auto">
<div class="modal-dialog">--student form content--<div>
</div>
</div>
}
Provided with .Js:
$(document).ready(function () {
$("#btnSubmit").click(function () {
var AdminFormdata = $("#AdminForm").serialize();
$.ajax({
type: "POST",
url: "/Account/Register",
data: AdminFormdata,
success: function (d) {
console.log(d);
$("#AdminModal").modal("hide");
}
})
})
});
I tried with the Admin dialog, the above code does work to popup the particular dialog. However when I click the Submit button, it does not get the appropriate data from the chosen registration form. What is the problem here?
HTML does not allow to nest a <form> inside another <form>. Move the <div class="modal "> outside of the #using(Html.BeginForm) block.
Something like this:
#using (Html.BeginForm("Register", "Account", FormMethod.Post, new { #class = "form-horizontal", role = "form" }))
{
#Html.AntiForgeryToken()
#Html.ValidationSummary("", new { #class = "text-danger" })
Admin Modal
} #* close main form here! *#
<div class="modal fade" id="AdminModal" style="width:auto">
#* ... *#
<form id="AdminForm"> ... </form>
</div>

Problems displaying dataTable in modal in html partial view

I asked a question here yesterday about this issue but got downvoted, probably because I didn't include any code which is understandable.
Hopefully this question will be more complete and allow you to help me more easily.
So I have 3 views in play:
StudentsList
Script
#{
ViewBag.Title = "StudentsList";
Layout = "~/Views/Shared/_LayoutM.cshtml";
}
#Scripts.Render("~/Scripts/charts")
#Styles.Render("~/Content/formsaltcss")
#model Mvc.Models.StudentViewModel
<script type="text/javascript">
$(document).ready(function () {
$('#AddStudentData').click(function () {
var type = 'student';
var id = 0;
$('#holderArea').html('');
if (!$('#studentDropDown option:selected').length) {
ToastrWarning('Please select a student before running the report');
return;
}
id = $('#studentDropDown').val();
var data = { id: id };
$.ajax({
url: '/Student/StudentAnalysisFiltered',
async: false,
data: data,
dataType: 'html',
success: function (data) {
$('#holderArea').html(data);
}
});
});
});
Relevant HTML
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="margin-bottom0 text-center">Student Analysis</h3></div>
<div class="panel-body">
<div class="row">
<div class="col-sm-12">
<form class="form-horizontal">
<div class="form-group">
<div class="row">
<label class="col-sm-2 control-label">Student Name</label>
<div class="col-sm-4">
#Html.DropDownListFor(c => c.Students, new SelectList(Model.Students, "StudentID", "Name"), "Choose Student"
, new { id = "studentDropDown", #class = "form-control input-sm", data_width = "100%" })
</div>
<div class="col-sm-offset-2 col-sm-10">
<button id="AddStudentData" type="button" class="btn btn-sm btn-primary">Select</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
<div id="holderArea">
</div>
StudentAnalysisSelected
Script
#using Data
#using Mvc.Helpers
#model Mvc.Models.StudentViewModel
#Scripts.Render("~/Scripts/datatables")
<script>
function StudentScoresModal(studentID, answer, result) {
$('#scoresTable').hide();
$('#scoresSpinner').show();
$('#scoresModal').modal('show');
var testID = #Html.Raw(Model.testID );
$.ajax({
cache: false,
url: "/Student/StudentScoresDrillthrough",
data: { 'studentID': studentID, 'answer': answer, 'result': result, 'testID': testID},
success: function (data) {
$('#scoresTable').html(data);
$('#scoresTable').show();
$('#scoresSpinner').hide();
},
error: function () {
toastr.options.positionClass = 'toast-bottom-right';
toastr.options.backgroundpositionClass = 'toast-bottom-right';
toastr.options.timeOut = 3000;
toastr.error('Unable to get student results.');
}
});
}
</script>
Relevant HTML
<div id="holderArea">
<button type="button" class="btn btn-sm btn-primary" onclick="StudentScoresModal(id, '', '')" id="#q.StudentID">View Scores</button>
</div>
<div class="modal in modal-stack" id="scoresModal" aria-hidden="false">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title"><strong>Student Scores</strong></h4>
</div>
<div class="modal-body">
<div class="row">
<div class="col-xs-12">
<div class="table-responsive" id="scoresTable" style="display:none">
</div>
<div class="sk-cube-grid absolute-center top-85" id="scoresSpinner" style="display:none">
<div class="sk-cube sk-cube1"></div>
<div class="sk-cube sk-cube2"></div>
<div class="sk-cube sk-cube3"></div>
<div class="sk-cube sk-cube4"></div>
<div class="sk-cube sk-cube5"></div>
<div class="sk-cube sk-cube6"></div>
<div class="sk-cube sk-cube7"></div>
<div class="sk-cube sk-cube8"></div>
<div class="sk-cube sk-cube9"></div>
</div>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-sm btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
StudentScoresPartial
Script
<script>
$(document).ready(function () {
$('#studentScores').dataTable({
"data": #Html.Raw(Model.StudentScoresJson),
"columns":[
{ "sName": "StudentID" },
{ "sName": "Answer" },
{ "sName": "Result" }
]
});
});
</script>
HTML
<table id="studentScores" class="display table table-bordered" cellspacing="0" width="100%">
<thead>
<tr>
<th>StudentID</th>
<th>Answer</th>
<th>Result</th>
</tr>
</thead>
<tfoot>
<tr>
<th>User</th>
<th>Answer</th>
<th>Response</th>
</tr>
</tfoot>
<tbody></tbody>
</table>
How it all works
On the 'StudentsList' view there is a dropdown with list of students, and a 'Select' button to filter on an individual. OnClick this clears the holderArea div and passes studentID to the controller method, which returns a partial view 'StudentAnalysisSelected' and places it inside the holderArea div.
Now a graph is loaded with details specific to the indivudual. When clicked the 'scoresTable' is hidden and the modal is shown and an ajax call is made to StudentScoresDrillthrough controller, which returns the 'StudentScores' partial that is placed into the html of 'scoresTable'.
The problem
Now this all works perfectly first time I filter by student. I click 'Select', the graph loads, I click the graph and the datatable displays neatly in the modal.
However for reasons unknown to me when I click 'Select' again to re-filter, and click on the graph that is loaded all I see is the modal appear with the loading spinner, and it stops there. No errors pertaining to datatables in the console, or anything out of the ordinary for that matter.
I appreciate this is a bit of a read, but i'd be keen to hear any thoughts on what could be causing my issue.
Thanks!
It's because your dom is reloaded and so you loose your event attached.
If you attach ypur event like so, this should do, see doc :
$('#AddStudentData').on('click',function () {});
First try calling dataTable after filter button click using $('#studentScores').dataTable();
If this doesn't work
Instead on your refilter click write:
$('#studentScores').dataTable();
After your partialview is fully loaded. And bind your list in table directly e.g :
StudentID
Answer
Result
#foreeach(var item in Model)
{
item.User
item.Answer
item.Response
}
Finally tracked it down and it was because the modal show was called before the table show.
Thanks to those who posted suggestions, it's much appreciated

JavaScript Failing in Partial View MVC

I had a MVC 5 view which has a tab control. I have the following view
#using System.Collections
#using MyComp.Content.Text;
#using MyComp.Utilities;
#using System.Linq;
#model MyComp.Models.ViewModels.AdministratorViewModel
<style type="text/css">
...
</style>
<script src="~/Scripts/jquery-ui.js"></script>
<script src="~/Scripts/jquery-2.0.0.js"></script>
<div class="manage">
<ul class="nav nav-tabs" id="myTab">
<li class="active">
<a data-toggle="tab" href="#invite">
<span class="glyphicon glyphicon-inbox"></span>Invite
</a>
</li>
<li>
<a data-toggle="tab" href="#custom_invite">
<span class="glyphicon glyphicon-pencil"></span>Custom Invite
</a>
</li>
</ul>
<div class="tab-content">
<div id="invite" class="tab-pane active fade in">
#Html.Partial("_InvitePartial", Model)
</div>
<div id="custom_invite" class="htmlCode tab-pane fade">
#Html.Partial("_CustomInvitePartial", Model)
</div>
</div>
</div>
#section scripts {
<script>
function onSuccess(result) {
$('#notify_failure_message').html(result.notify_failure);
$('#notify_success_message').html(result.notify_success);
}
</script>
<script>
$(function () {
$("input[type=button]").click(function () {
var data_email = $('#email').val();
var data_product = $('#product option:selected').text();
$.ajax({
url: 'Tools/SendInvite',
type: 'POST',
data: { email: data_email, product: data_product },
success: function (result) {
$('#fail_message').html(result.result_failure);
$('#success_message').html(result.result_success);
}
});
});
});
</script>
}
and my partial view as
#using System.Collections
#using MyComp.Content.Text;
#using MyComp.Utilities;
#using System.Linq;
#model MyComp.Models.ViewModels.AdministratorViewModel
#using (Html.BeginForm("SendInvite", "Tools", FormMethod.Post,
new { #class = "form-horizontal", role = "form" }))
{
#Html.AntiForgeryToken()
<h2>Invite Users</h2>
<div class="form-group">
#Html.LabelFor(m => m.EmailAddress, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.EmailAddress,
new { #class = "form-control", id = "email" })
#Html.ValidationMessageFor(m => m.EmailAddress)
</div>
</div>
<div class="form-group">
#Html.Label("Access To", new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.DropDownList("Product", new SelectList(
new List<Object> {
new { Text = "ProcuctA", Value = "ProcuctA" },
new { Text = "ProcuctB", Value = "ProcuctB" },
new { Text = "All", Value = "All" }},
"Value",
"Text"),
new { #class = "form-control", id = "product" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<span id="fail_message" class="label label-danger"></span>
<span id="success_message" class="label label-success"></span>
#*<p class="text-info">Test Message</p>*#
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="button" id="invite_button" value="Invite User" class="btn btn-primary" />
</div>
</div>
}
Bu my button id="invite_button" won't fire the controller method. When I had everything in a single view it did fire and all was fine, this was using the same java script, why has this stopped working when I have moved to a partial view?
Thanks for your time.
Edit. my main view that hosts the partial views is
#using System.Collections
#using VisasysNET.Content.Text;
#using VisasysNET.Utilities;
#using System.Linq;
#model VisasysNET.Models.ViewModels.AdministratorViewModel
<style type="text/css">
span {
padding-right: 10px;
}
...
</style>
<script src="~/Scripts/jquery-ui.js"></script>
<script src="~/Scripts/jquery-2.0.0.js"></script>
<div class="manage">
<ul class="nav nav-tabs" id="myTab">
<li class="active">
<a data-toggle="tab" href="#invite">
<span class="glyphicon glyphicon-inbox"></span>Invite
</a>
</li>
<li>
<a data-toggle="tab" href="#custom_invite">
<span class="glyphicon glyphicon-pencil"></span>Custom Invite
</a>
</li>
</ul>
<div class="tab-content">
<div id="invite" class="tab-pane active fade in">
#Html.Partial("_InvitePartial", Model)
</div>
<div id="custom_invite" class="htmlCode tab-pane fade">
#Html.Partial("_CustomInvitePartial", Model)
</div>
</div>
</div>
#section scripts {
<script>
function onSuccess(result) {
$('#notify_failure_message').html(result.notify_failure);
$('#notify_success_message').html(result.notify_success);
}
</script>
<script>
$(function () {
$("input[type=button]").click(function () {
var data_email = $('#email').val();
var data_product = $('#product option:selected').text();
$.ajax({
url: 'Tools/SendInvite',
type: 'POST',
data: { email: data_email, product: data_product },
success: function (result) {
$('#fail_message').html(result.result_failure);
$('#success_message').html(result.result_success);
}
});
});
});
</script>
}
section's do not work within partial views,
see here:
Injecting content into specific sections from a partial view ASP.NET MVC 3 with Razor View Engine
invite_button does not have any javascript referencing it. Neither is it of type submit. This button will always do nothing.
It looks like you expect it to be of type submit.
<input type="submit" id="invite_button" value="Invite User" class="btn btn-primary" />
Try modifying the input button type from submit to button - it will work.. I tried with alert in a sample application and it worked.. for me. Below is the code.
Here's the MVC index view
<script type="text/javascript">
$(document).ready(function () {
$("input[type=button]").click(function () {
alert("hello from partial class");
});
});
</script>
<h2>#ViewBag.Message</h2>
<p>
To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">
http://asp.net/mvc</a>.
</p>
<div>
#Html.Partial("~/Views/Home/_MyTest.cshtml")
and here the partial view
#{
ViewBag.Title = "_MyTest";
}
<div>
<input type="button" id="invite_button" value="Invite User"/>
</div>
So on click on the button I am able to the jquery and alert popup's up
hope this helps..
you need to render scripts in your layout view.
<body>
<!-- Other Code -->
#RenderSection("scripts", required: false)
</body>

Cannot link back to MVC view via javascript

I have an Index View and when I click the Edit button, I post to the Edit View (via the Controller) and display a bootstrap modal popup.
By posting to the Edit View, the Controller/View automatically handle getting and displaying the correct data on the modal popup.
Once I'm on my Edit View with the dialog box appearing and I click on the Close button, I simply want to link back to the Index page again; but instead, am getting an error with the path of the url. The new path I want to link to is being "tacked on" to the original path instead of replacing it.
I'm using the Url.Action method inside the click event of the Close button (of which I verified it's hitting) and have verified the location.href url is exactly what is in the url variable as you see in the code.
What do I need to do to correctly link back to the Index url?
Index View
<span class="glyphicon glyphicon-edit" aria-hidden="true"></span>Edit
Edit Controller
// GET: Categories/Edit/5
public async Task<ActionResult> Edit(short id)
{
if (id == 0)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
Category category = await db.GetCategoryIDAsync(id);
if (category == null)
{
return HttpNotFound();
}
return View(category);
}
Edit View
#model YeagerTechDB.Models.Category
#{
ViewBag.Title = "Edit";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<div class="modal" id="categoryEditModal" tabindex="-1" role="dialog" aria-labelledby="categoryModal-label" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="categoryModal-label">Category Description</h4>
</div>
<div class="modal-body">
<div class="form-group">
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(model => model.CategoryDescription, new { #class = "control-label required col-offset-1 col-lg-3 col-md-3 col-sm-3 col-xs-3" })
<div class="col-lg-8 col-md-8 col-sm-8 col-xs-8">
#Html.EditorFor(model => model.CategoryDescription, new { #class = "form-control" } )
#Html.ValidationMessageFor(model => model.CategoryDescription, "", new { #class = "text-danger" })
</div>
</div>
</div>
</div>
<div class="modal-footer">
<button type="submit" class="btn btn-default" id="btnCloseCategory">Close</button>
<button type="submit" class="btn btn-primary" id="btnSaveCategory">Save</button>
</div>
</div>
</div>
</div>
<div>
#Html.Hidden("categoryEditUrl", Url.Action("Edit", "Category", new { area = "Categories" }))
#Html.Hidden("catID", Model.CategoryID)
</div>
#section Scripts {
<script>
$(document).ready(function ()
{
if (typeof contentEditCategory == "function")
contentEditCategory()
});
</script>
}
JS for Edit View
$('#btnCloseCategory').click(function (e)
{
var url = '#Url.Action("Index", "Category", new { area = "Categories" })';
location.href = url;
return false;
});
Image of modal popup
Image of error
Assuming your javascript is in an external file you could do the following:
Attach the url to your button within your view with a data attribute as follows:
<button type="submit" class="btn btn-default" id="btnCloseCategory"
data-url="#Url.Action("Index", "Category", new { area = "Categories" })">Close</button>
Then pull back the url with the data method as follows:
$('#btnCloseCategory').click(function (e)
{
var url = $(this).data('url');
location.href = url;
return false;
});
Try changing type="submit" to type="button" for your Close button.
<button type="button" class="btn btn-default" id="btnCloseCategory">Close</button>

How do I show a loading spinner when submitting for a partial view in asp.net MVC?

I've written an application that loads partial views when you click "Continue". Sometimes the server hangs a little so I'd like to show some sort of loading message or spinner when the user clicks submit so they know the page is doing something.
This is just your standard form but my submit code looks like this(included a field so you can see an example):
<div class="form-group">
#Html.LabelFor(m => m.JointAdditionalIncomeSource, new { #class = "col-sm-2 control-label" })
<div class="col-sm-10">
<div class="col-sm-4">
#Html.TextBoxFor(m => m.JointAdditionalIncomeSource, new { #class = "form-control", placeholder = "Additional Income Source" })
#Html.ValidationMessageFor(m => m.JointAdditionalIncomeSource)
</div>
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-offset-3 col-sm-10">
<div class="col-sm-4">
<input type="submit" value="Back" id="back" class="btn btn-default" />
<input type="submit" value="Continue" id="continue" class="btn btn-default" />
</div>
</div>
</div>
I've looked around on google for ways to do this and so far haven't had any luck. Jquery wouldn't be a bad method to use if anyone has an example of that.
Updates:
This is my current code that is not working.
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script>
$('#continue').submit(function () {
$('#LoanType').hide();
});
</script>
<script type="text/javascript">
function onBegin() {
$("#divLoading").html('<image src="../Content/ajax-loader.gif" alt="Loading, please wait" />');
}
function onComplete() {
$("#divLoading").html("");
}
</script>
<body>
<!--If user has javascript disabled-->
<noscript>
<div style="position: fixed; top: 0px; left: 0px; z-index: 3000;
height: 100%; width: 100%; background-color: #FFFFFF">
<p style="margin-left: 10px">To continue using this application please enable Javascript in your browser.</p>
</div>
</noscript>
<!-- WIZARD -->
<div id="MyWizard" class="site-padding-top container">
<div data-target="#step1" id="step1" class="app-bg">
<div class="form-horizontal">
<div id="LoanType">
<div class="divider-app">
<p>Loan Type</p>
</div>
#using (Ajax.BeginForm("SelectLoanType", new AjaxOptions { HttpMethod = "POST", InsertionMode = InsertionMode.Replace, UpdateTargetId = "step2" }))
{
<div class="form-group">
#Html.LabelFor(m => m.LoanType, new { #class = "col-sm-2 control-label" })
<div class="col-sm-10">
<div class="col-sm-4">
#Html.DropDownListFor(m => m.LoanType, new SelectList(Model.AllAvailableLoanTypes.Select(x => new { Value = x, Text = x }), "Value", "Text"), new { #class = "form-control", id = "loanType" })
</div>
</div>
</div>
<div class="form-group" id="LoanTypeSubmit">
<div class="col-lg-offset-3 col-sm-10">
<div class="col-sm-4">
<input type="submit" value="Continue" id="continue" class="btn btn-default" />
</div>
</div>
</div>
}
<div id="divLoading"></div>
</div>
The delay in the controller is working.
Here goes the complete solution -
Lets say you have an ajax controller like this -
public ActionResult Ajax()
{
return View();
}
Which serves the following ajax view -
#{
ViewBag.Title = "Ajax";
}
<h2>Ajax</h2>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script type="text/javascript">
function onBegin() {
$("#divLoading").html('<image src="../Content/ajax-loader.gif" alt="Loading, please wait" />');
}
function onComplete() {
$("#divLoading").html("");
}
</script>
#using (Ajax.BeginForm("LoadRules", "Home", new AjaxOptions { UpdateTargetId = "Rules", OnBegin = "onBegin", OnComplete = "onComplete" }))
{
<input type="submit" value="Load Rules" />
}
<div id="divLoading"></div>
<div id="Rules"></div>
Then when you click on the submit button it will hit the following controller, which has a delay of 5 secs (simulation of long running task) in serving the partial view -
public ActionResult LoadRules(DDLModel model)
{
System.Threading.Thread.Sleep(5000);
return PartialView("MyPartial");
}
and the partial view is a simple view -
<div>
This is Partial View
</div>
Here to show the loaded I simply used the following gif file -
when we click on the submit button it will show the progress in the following way -
And once the delay of 5 secs completes on the server side, it will show the partial view -
The answer by ramiramilu is fairly close, but our Team was unable to integrate Ajax into our MVC 5 web app. There were other issues as well. So I am going to (more or less) duplicate his answer with some minor bug fixes.
Here goes the complete solution -
Lets say you have an ajax controller like this -
public ActionResult Ajax()
{
return View();
}
Which serves the following ajax view -
#{
ViewBag.Title = "Ajax";
}
<h2>Ajax</h2>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.10.2/jquery.min.js" integrity="sha512-YHQNqPhxuCY2ddskIbDlZfwY6Vx3L3w9WRbyJCY81xpqLmrM6rL2+LocBgeVHwGY9SXYfQWJ+lcEWx1fKS2s8A==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-ajax-unobtrusive/3.2.6/jquery.unobtrusive-ajax.min.js"></script>
<script type="text/javascript">
function onBegin() {
$("#divLoading").html('<image src="../Content/ajax-loader.gif" alt="Loading, please wait" />');
}
function onComplete() {
$("#divLoading").html("");
}
</script>
<form asp-action="LoadRules" asp-controller="Home" method="POST" data-ajax="true" data-ajax-update="#Rules" data-ajax-begin="onBegin" data-ajax-complete="onComplete">
<input type="submit" value="Load Rules" />
</form>
<div id="divLoading"></div>
<div id="Rules"></div>
Then when you click on the submit button it will hit the following controller, which has a delay of 5 secs (simulation of long running task) in serving the partial view -
public PartialViewResult LoadRules(DDLModel model)
{
System.Threading.Thread.Sleep(5000);
return PartialView("MyPartial", model);
}
and the partial view is a simple view -
<div>
This is Partial View
</div>
Here to show the loaded I simply used the following gif file -
when we click on the submit button it will show the progress in the following way -
And once the delay of 5 secs completes on the server side, it will show the partial view -

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