Jquery dialog & Ajax posting wrong(?) result in ASP.NET MVC3 (razor) - asp.net-mvc-3

What i want to do:
at page load to automatically pop up a jquery dialog fill in some data, post that to an action and close the dialog (regardless if the action succeeds or not).
in the View in which the pop up should occur i have the following:
<script type="text/javascript">
$(function () {
$('#PopUpDialog').dialog(
{
modal: true,
open: function ()
{
$(this).load('#Url.Action("Subscription", "PopUp")');
},
closeOnEscape: false
}
);
$('.ui-dialog-titlebar').hide();
$('#closeId').live('click',function () {
$('#PopUpDialog').dialog('close');
return false;
}
);
$('#SubscriptionForm').submit(function () {
$("#PopUpDialog").dialog("close");
$.ajax({
url: encodeURI('#Url.Action("Subscription", "PopUp")' ),
type: this.method,
data: $(this).serialize()
})
return fase;
}
);
});
</script>
the Subscription view has the following:
#using (Html.BeginForm( new { id = "SubscriptionForm" }))
{
#Html.ActionLink(Deals.Views.PopUp.SubscriptionResources.AlreadySubscribed, "", null, new { id = "closeId" })
<br />
<br />
#Deals.Views.PopUp.SubscriptionResources.FillEmail
#Html.TextBoxFor(m => Model.Email)
<input type="submit" id="subscribeId" value="#Deals.Views.PopUp.SubscriptionResources.IWantToSubscribe" />
<br />
}
which works fine.
The POST action is defined as follows:
[AcceptVerbs(HttpVerbs.Post)]
public JsonResult Subscription(FormCollection formValues)
//public void Subscription(FormCollection formValues)
{
Deals.ViewModels.PopUpSubscriptionVM VM = new ViewModels.PopUpSubscriptionVM();
TryUpdateModel(VM);
if (!String.IsNullOrEmpty(VM.Email))
{
//do the update to the dbms
}
return Json(new { success = true });
}
The problem is that after posting back i get an empty screen with the success message, which i don't want!
What am i doing wrong?

You can handle the success and error callbacks:
$('#SubscriptionForm').submit(function () {
$("#PopUpDialog").dialog("close");
$.ajax({
url: encodeURI('#Url.Action("Subscription", "PopUp")' ),
type: this.method,
data: $(this).serialize(),
success: function (result) {
//Do Whatever you want to do here
},
error: function (x, e) {
//Do Whatever you want to do here
}
})
return fase;
}

To see what i am doing wrong i set up a small project (ASP.NET MVC 3) with the following ingredients:
<script type="text/javascript">
$(function () {
// Does not cache the ajax requests to the controller e.g. IE7/9 is doing that...
$.ajaxSetup({ cache: false });
var $loading = $('<img src="#Url.Content("~/images/ajax-Loader.gif")" alt="loading" class="ui-loading-icon">');
var $url = '#Url.Action("Subscription", "PopUp")';
var $title = 'Some title';
var $dialog = $('<div></div>');
$dialog.empty();
$dialog
.append($loading)
.load($url)
.dialog({
autoOpen: false
, closeOnEscape: false
, title: $title
, width: 500
, modal: true
, minHeight: 200
, show: 'fade'
, hide: 'fade'
});
$dialog.dialog("option", "buttons", {
"Cancel": function () {
$(this).dialog("close");
$(this).empty();
},
"Submit": function () {
var dlg = $(this);
$.ajax({
url: $url,
type: 'POST',
data: $("#SubscriptionForm").serialize(),
success: function (response) {
//$(target).html(response);
dlg.dialog('close');
dlg.empty();
});
}
});
$dialog.dialog('open');
})
</script>
The controllers' actions:
public ActionResult Subscription()
{
Thread.Sleep(2000); //just for testing
TestModalAjax.ViewModels.PopUpVM VM = new ViewModels.PopUpVM();
return View(VM);
}
//POST
[AcceptVerbs(HttpVerbs.Post)]
//[OutputCache(CacheProfile = "ZeroCacheProfile")]
public ActionResult Subscription(FormCollection formValues)
{
TestModalAjax.ViewModels.PopUpVM VM = new ViewModels.PopUpVM();
TryUpdateModel(VM);
return Json(new { success = true });
}
...and the according View:
#model TestModalAjax.ViewModels.PopUpVM
#{
Layout = null;
ViewBag.Title = "Subscription";
}
<h2>Subscription</h2>
#* ----- NOTICE THE FOLLOWING!!! WITHOUT THIS DATA GETS NOT POSTED BACK!!!! ---- *#
#using (Html.BeginForm("Subscription","PopUp",FormMethod.Post, new { id="SubscriptionForm"}))
{
<h1> Give me your name</h1>
#Html.TextBoxFor(M => Model.Name)
}
...so it seems everything works as expected!

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I am adding a comments part in my project, I would like to use real-time using signalR.
I'm using Ajax for adding comments, and I want to refresh data for all users after the comment inserts into the database.
This is my code in Razor view :
<form asp-action="SendComment" asp-controller="Home" asp-route-subId="#Model.Subject.Id"
asp-route-AccountName="#User.Identity.Name" onsubmit="return jQueryAjaxPost(this);">
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</div>
</form>
Ajax code :
jQueryAjaxPost = form => {
try {
$.ajax({
type: 'POST',
url: form.action,
data: new FormData(form),
contentType: false,
processData: false,
success: function (res) {
if (res.isValid) {
$('#view-all').html(res.html)
}
else
$('#form-modal .modal-body').html(res.html);
},
error: function (err) {
console.log(err)
}
})
//to prevent default form submit event
return false;
} catch (ex) {
console.log(ex)
}
}
signalR code (Not finished)
<reference path="../lib/signalr/browser/signalr.js" />
$(() => {
let connection = new signalR.HubConnectionBuilder().withUrl("/signalServer").build();
connection.start();
connection.on("refreshData", function () {
loadData();
});
loadData();
function loadData() {
debugger;
$.ajax({
type: 'GET',
url: '#Url.Action("refreshComments","Home")',
success: function (res) {
$('#view-all').html(res);
}
})
}
});
Code-behind :
var newComment = new CourseComment
{
Comment = comment,
Date = DateTime.Now,
ApplicationUser = user,
SubjectId = subId,
CreatedDate = DateTime.Now
};
_courseCommnt.Entity.Insert(newComment);
await _courseCommnt.SaveAsync();
await _signalR.Clients.All.SendAsync("refreshData");
_toastNotification.AddSuccessToastMessage("تم ارسال التعليق بنجاح");
var courseComments = await _courseCommnt.Entity.GetAll().Include(a => a.ApplicationUser)
.Where(a => a.SubjectId == subId).OrderByDescending(a => a.Date).AsNoTracking().ToListAsync();
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CourseComments = courseComments
};
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Ajax PostBack: Read data from Controller

How do I read the data from my controller in my ajax postback?
I have a Razor form
#using (Html.BeginForm("CreateDocument", "Pages", FormMethod.Post, new { id = "createDocumentForm" }))
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....
}
And I catch the Submit action in JavaScript:
<script type="text/javascript">
$(document).ready(function () {
$("#createDocumentForm").submit(
function () {
showWaitMode();
$.ajax({
data: ("#createDocumentForm").serialize,
success: (e) => {
console.log(e);
},
error: (errorResponse) => {
alert(errorResponse)
}
})
return false;
}
);
});
</script>
In my controller I hit this method:
public ActionResult CreateDocument(NotatFletModel model)
{
var reuslt = new
{
Staus = true,
GoDocumentId = model.ContactId.ToString(),
ErrorMessage = model.DocumentKindId,
};
return Json(reuslt);
}
But in my Ajax success function I would like to get the data from my contorller. I expected it to be in my parameter e but it's not
So in short: How do I do an Ajax post and read the data posted back from the controller
Checkout my code for Form Post using ajax
Html :
#using (Html.BeginForm("CreateDocument", "Pages", FormMethod.Post, new { id = "createDocumentForm" }))
{
....
}
Jquery :
$("#createDocumentForm").submit(
function (e) {
showWaitMode();
e.preventDefault();
var form = $(this);
var url = form.attr('action');
$.ajax({
url: url,
type: 'POST',
data: form.serialize(), // serializes the form's elements.
success: function (data) {
console.log(data); // show response
},
error: (errorResponse) => {
alert(errorResponse)
}
})
return false;
}
);
Controller :
//You can Use FormCollection also to get data
//public ActionResult CreateDocument(FormCollection fc) {
[HttpPost]
public ActionResult CreateDocument(NotatFletModel model) {
//your logic
return Json(model, JsonRequestBehavior.AllowGet);
}

Ajax serialize with extra data MVC

I use a webgid so to display records that have to do with the user. I load this webgrid in a partilal view after the user clicks on an ajax actionlink.
#Ajax.ActionLink(" ", "AddUserElements", "Users", new { username = item.UserName }, new AjaxOptions() { UpdateTargetId = "add_research"}, new { #class = "glyphicon glyphicon-link" })
In this webgrid I have a delete action. When I click the delete a modal appears so to ask for verification. I click on yes and the record is being deleted but the webgrid in the partial view doesn't being refreshed. To update the partial view I use in my ajax code
$("#add_research").load('/Users/AddUserElements');
I tried to pass the username with serialize to controller but no lack
My ajax code
$(function () {
$.ajaxSetup({ cache: false });
$("a[data-modal]").on("click", function (e) {
$('#myModalContent').load(this.href, function () {
$('#myModal').modal({
keyboard: true
}, 'show');
bindForm(this);
});
return false;
});
});
function bindForm(dialog) {
$('form', dialog).submit(function () {
$('#progress').show();
var data = $(this).serialize() + '&' + $.param({ 'username': '#Model.UserName' }, true);
$.ajax({
url: this.action,
type: "POST",
data: data,
cache: false,
success: function (result) {
if (result.success) {
$('#myModal').modal('hide');
$('#progress').hide();
$("#add_research").load('/Users/AddUserElements');
} else {
$('#progress').hide();
$('#myModalContent').html(result);
bindForm();
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});
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Any idea?
thank you

Backbonejs collection.create: how to prevent it from adding items if there is an error?

How can I prevent collection.create from adding items into its collection if there is an error found in the input?
html,
<div id="new-status">
<h2>New monolog</h2>
<form action="">
<textarea name="content"></textarea><br>
<input type="submit" value="Post">
</form>
</div>
<div id="statuses">
<h2>Monologs</h2>
<ul></ul>
</div>
backbone,
var Status = Backbone.Model.extend({
initialize: function(){
},
validate: function(attrs, options) {
if(attrs.text === '') alert("please enter some text");
},
url:"dummy.php",
sync: function (method, model, options) {
return $.ajax({
type: "POST",
dataType: 'json',
url: 'server.php',
data: {
text: this.get("text")
}
});
}
});
var Statuses = Backbone.Collection.extend({
model: Status
});
var NewStatusView = Backbone.View.extend({
events: {
"submit form": "addStatus"
},
initialize: function(options) {
_.bindAll(this, 'addStatus', 'clearInput');
this.listenTo(this.collection, 'add', this.clearInput) ;
},
addStatus: function(e) {
e.preventDefault();
this.collection.create({ text: this.$('textarea').val() });
},
clearInput: function() {
this.$('textarea').val('');
}
});
var StatusesView = Backbone.View.extend({
initialize: function(options) {
this.collection.on("add", this.appendStatus, this);
},
appendStatus: function(status) {
this.$('ul').append('<li>' + status.escape("text") + '</li>');
}
});
$(document).ready(function() {
var statuses = new Statuses();
new NewStatusView({ el: $('#new-status'), collection: statuses });
new StatusesView({ el: $('#statuses'), collection: statuses });
});
So, when you hit the submit button without typing any text, you get an error popup from this part in the model,
validate: function(attrs, options) {
if(attrs.text === '') alert("please enter some text");
},
But how can I tell the collection that there is an error and do not add this empty item and also do not fire sync in the model?
EDIT:
got it worked with collection.create in this way...
model,
validate: function(attrs, options) {
if(attrs.text === '') {
var message = "please enter some text";
alert(message);
return message;
}
},
view,
addStatus: function(e) {
e.preventDefault();
var one = new Status({ text: this.$('textarea').val() });
if (!one.isValid()) {
alert(one.validationError);
} else {
this.collection.create(one);
}
},
it seems to work fine unless it is not a good approach or against MVC pattern?
I don't think collection.create is the right choice here.
addStatus: function(e) {
e.preventDefault();
var status = new Status({"text": this.$('textarea').val()})
var error = status.valiate();
if(!error) {
this.collection.add(status);
}
},
Also not that the backbone docs says this about validate:
If the attributes are valid, don't return anything from validate; if
they are invalid, return an error of your choosing. It can be as
simple as a string error message to be displayed, or a complete error
object that describes the error programmatically.
So, your validate function should be fixed:
validate: function(attrs, options) {
if(attrs.text === '') {
var message = "please enter some text";
alert(message);
return message;
}
},
Your Model's validate method should return an error string so that models save is not fired in case of alert.
validate: function(attrs, options) {
if(attrs.text === ''){
alert("please enter some text");
return "Text is empty."; // OR proper error CODE
}
}
Check validate method of Backbone.Model.

jQuery dialog for a partial view is not opening modal

I have built a jquery dialog to show a partial view for entering data.
I have built the action link:
#Html.ActionLink("Add New Service Provider", "PartialNewCust", "Customer", null, new { #class = "addServiceProviderLink" })
I have the controller action:
public ActionResult PartialNewCust()
{
return PartialView();
}
And the div / jQuery code:
<div id="AddServiceProvDialog" title="Add Service Provider"></div>
<script type="text/javascript">
var linkObj;
$(function () {
$(".addServiceProviderLink").button();
$('#AddServiceProvDialog').dialog(
{
autoOpen: false,
width: 400,
resizable: false,
modal: true,
buttons:
{
"Add": function () {
$("#addProviderForm").submit();
},
"Cancel": function () {
$(this).dialog("close");
}
}
});
$(".addServiceProviderLink").click(function () {
linkObj = $(this);
var dialogDiv = $('#AddServiceProvDialog');
var viewUrl = linkObj.attr('href');
$.get(viewUrl, function (data) {
dialogDiv.html(data);
//validation
var $form = $("#addProviderForm");
// Unbind existing validation
$form.unbind();
$form.data("validator", null);
// Check document for changes
$.validator.unobtrusive.parse(document);
// Re add validation with changes
$form.validate($form.data("unobtrusiveValidation").options);
//open dialog
dialogDiv.dialog('open');
return false;
});
});
});
The partial view renders fine but opens a new page and does not come up as a modal dialog.
What am I doing wrong.
On a side note: my autocomplete code is also not working by my jQuery datetime picker is...
$(document).ready(function()
{
$(".date").datepicker();
}
);
$(document).ready(function () {
$("#CustByName").autocomplete(
{
source: function (request, response) {
$.ajax(
{
url: "/Cases/FindByName", type: "GET", dataType: "json",
data: { searchText: request.term, maxResults: 10 },
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data, function (item) {
return {
label: item.CustomerName,
value: item.CustomerName,
id: item.CustomerID
}
})
);
}
});
},
minLength: 3
});
});
My guess is that you misplaced the return false statement in the button's click handler, thus the default behavior is not prevented as you expect, and the link is simply followed:
$(".addServiceProviderLink").click(function () {
...
$.get(viewUrl, function (data) {
dialogDiv.html(data);
...
dialogDiv.dialog('open');
// this return statement should be in the "click" handler,
// not in success callback of the .get() method !
return false;
});
});
Your code should then be:
$(".addServiceProviderLink").click(function () {
...
$.get(viewUrl, function (data) {
...
});
// return here to prevent default click behavior
return false;
});

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