I have a little problem when trying to get the value of a local int variable on a view, using jQuery. So, I have a the main view, and as you can see in the code below, I use a partial view named "_Result", when I try to get the value of indexPage by handling the click event of a button in the partial view, I get 0, event if I initialize my variable by another value(5 for example). Any idea why ?
Thanks in advance
My view :
#model System.Data.DataTable
#{var pageIndex = 5;}
<div>
<div>
<span>Téléphone ?</span>
<input id="idTxTel" type="text" name="txTelephone"/>
<input id="idBnSearch" type="submit" value="Chercher" name="bnSearch"/>
</div>
#Html.Partial("_Result", Model)
</div>
<script type="text/javascript">
$(document).ready(function () {
$("#idBnSearch").click(function () {
//The right value (5)
alert('#pageIndex');
var telValue = $("#idTxTel").val();
var methodUrl = '#Url.Content("~/Search/GetReverseResult/")';
'#{pageIndex = 0;}'
doReverseSearch(telValue, '#pageIndex', methodUrl);
});
$("#bnNextPage").live("click", function ()
{
//Not th right value (0)
alert('#pageIndex');
});
});
</script>
My doReverseSearch method :
function doReverseSearch(telValue, pageIdx, methodUrl)
{
$.ajax(
{
url: methodUrl,
type: 'post',
data: JSON.stringify({ Telephone: telValue, pageIndex: pageIdx }),
datatype: 'json',
contentType: 'application/json; charset=utf-8',
success: function (data) {
$('#result').replaceWith(data);
},
error: function (request, status, err) {
alert(status);
alert(err);
}
});
}
My partial view :
<div id="result">
<h2>Résultat de la recherche</h2>
<div>#ViewBag.CountResult entreprises trouvées</div>
#if(Model != null)
{
foreach (DataRow row in Model.Rows)
{
<h3>#row["CompanyName"]</h3>
}
}
<hr />
<div>
<span>Page N sur M</span>
<input id="bnPreviousPage" type="submit" value="Précédant" name="bnPrevious"/>
<input id="bnNextPage" type="submit" value="Suivant" name="bnNext"/>
</div>
</div>
Razor inside javascript has to be wrapped in a block
so you can do this:
<script>
// global value for page
<text>
var myPage = #pageIndex;
<text>
</script>
what would be far easier is give the button an attribute of data-page and ask for attribute in click event:
<button data-page="#("pageIndex")" id="myButt" />
$("#myButt").on("click",function(e){
var pageIndex = $(this).attr("data-page");
alert(pageIndex);
});
Related
I need to change the view in same page using ajax when the user changes the option of the drop-down list.
Up until now in my view I have the drop down list
<div class="wrapper">
<div>
<label>Get cars per people </label>
#Html.DropDownList("ddlChange", new SelectList(ViewBag.OptionsList,"Value","Text", ViewBag.selectedValue),new { #id = "ddlChangeID" })
</div>
<div class="box box-success">
<div class="box-body">
<div>
<canvas id="myChart"></canvas>
</div>
</div>
</div>
</div>
Then in a script (which I found from another question)
$(document).ready(function () {
$("#ddlChangeID").change(function () {
var strSelected = "";
$("#ddlChangeID:selected").each(function () {
strSelected += $(this)[0].value;
});
var url = "/Cars/Index/" + strSelected;
$.post(url, function (data) {
});
});
})
And in the controller I am using ViewBag values to save the drop-down list values and whatever else is needed for the graph which loads in a different script again with ViewBag values. I have managed to pass the selected value (strSelected) but the view does not reload with the new data.
How should I make the ajax event?
Change your script ajax call by calling an action result as follows
$("#ddlChangeID").change(function () {
$.ajax({
url: "/Controller/ActionHtml?id="+$('#ddlChange').val(),
type: "POST",
cache: false,
success: function (result) {
$("#myChart").html(result);
},
error: function () {
$("#myChart").empty();
}
});
});
and in the controller the actionresult will be like the following which returns the html partial view that you need to append
public ActionResult ActionHtml(string id)
{
//Here you can load the data based on the id,pass model to the patial views etc
ViewBag.id = id;
return PartialView("~/Views/Shared/myhtml.cshtml");
}
myhtml.cshtml will be a partial view with the html content as
//content is dummy,change the content as you want
<!DOCTYPE html>
<html>
<body>
<p>Enter some text in the fields below, then press the "Reset form" button to reset the form.</p>
<form id="myForm">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br><br>
</form>
So I changed the
#Html.DropDownList("ddlChange", new SelectList(ViewBag.OptionsList,"Value","Text", ViewBag.selectedValue),new { #id = "ddlChangeID" })
To
#Html.DropDownList("ddlChange", new SelectList(ViewBag.OptionsList,"Value","Text", ViewBag.selectedValue),new { #onchange = "ChangeOption()" })
adding also an id to the main div.
And the script to
function ChangeOption() {
var id = $('#ddlChange').val();
$.ajax({
url: '/Cars/Index',
type: "GET",
data: { Id: id },
success: function (data) {
$('#wrapAll').html(data);
}
});
}
It seems to work. Only issue now is that the css breaks.
It pushes the graph and drop-down list to the right breaking
the functionality.
The program does the following steps:
The user clicks on Change Address
The button disappears, another button appears - Save.
Next, the program should read the data from the input and send it via ajax to the controller method.
But nothing works. When I put everything in one <script> tag, the first button also stops working. Help
The problem is that even the buttonSetAddress button does not perform the function. It starts working only after I remove everything else from <script>
<div class="form-group">
<label>Адресс</label>
<input class="form-control" id="AddressInput" type="text" placeholder="#ViewBag.User.Address" readonly /><br />
<button type="button" class="btn btn-primary" id="buttonSetAddress">Изменить</button>
<button type="button" class="btn btn-success" id="buttonSaveAddress" onclick="SaveAddress()" hidden>Сохранить</button>
</div>
js and ajax
<script type="text/javascript">
document.getElementById('buttonSetAddress').onclick = function AddressInputSet() {
document.getElementById('AddressInput').removeAttribute('readonly');
document.getElementById('buttonSetAddress').hidden = 'true';
document.getElementById('buttonSaveAddress').removeAttribute('hidden');
alert('sdfgdfg');
};
document.getElementById('buttonSaveAddress').onclick = function SaveAddress() {
var data = JSON.stringify( {
userId: #ViewBag.User.Id,
address: document.getElementById('AddressInput').value
});
$.ajax({
type: 'POST',
url: '/Account/ResetAddress',
data: data,
dataType: JSON,
success: function () {
document.getElementById('buttonSaveAddress').hidden = 'true';
},
error: function () {
alert('Error');
}
});
};
</script>
Controller
[HttpPost]
public async void ResetAddress(string userId, string address)
{
var user = await _userManager.FindByIdAsync(userId);
user.Address = address;
await _userManager.UpdateAsync(user);
}
contentType is the type of data you're sending, so application/json; charset=utf-8 is a common one, as is application/x-www-form-urlencoded; charset=UTF-8, which is the default.
dataType is what you're expecting back from the server: json, html, text, etc. jQuery will use this to figure out how to populate the success function's parameter.
Since your action return void, you could not set the dataType as JSON.
Try to use below code which works well(Make sure the url is correct)
<div>
<label>Адресс</label>
<input class="form-control" id="AddressInput" type="text" placeholder="#ViewBag.User.Address" readonly /><br />
<button type="button" onclick ="AddressInputSet()"class="btn btn-primary" id="buttonSetAddress">Изменить</button>
<button type="button" onclick="SaveAddress()" class="btn btn-success" id="buttonSaveAddress" hidden>Сохранить</button>
</div>
#section Scripts{
<script type="text/javascript">
function AddressInputSet() {
document.getElementById('AddressInput').removeAttribute('readonly');
document.getElementById('buttonSetAddress').hidden = 'true';
document.getElementById('buttonSaveAddress').removeAttribute('hidden');
alert('sdfgdfg');
};
function SaveAddress() {
var data ={
userId: #ViewBag.User.Id,
address: document.getElementById('AddressInput').value
};
$.ajax({
type: 'POST',
url: '/Account/ResetAddress',
data: data,
//contentType: "application/x-www-form-urlencoded; charset=utf-8",
//dataType: JSON,
success: function () {
document.getElementById('buttonSaveAddress').hidden = 'true';
},
error: function () {
alert('Error');
}
});
};
</script>
}
Action:
[HttpPost]
public async void ResetAddress(string userId, string address)
try add quote to this value
var data = {
userId: '#ViewBag.User.Id', // here
address: document.getElementById('AddressInput').value
};
var data =JSON.stringify( {
userId: '#ViewBag.User.Id', // here
address: document.getElementById('AddressInput').value
});
You have to use JSON.stringify to turn you object to json.
and also yo must set content type in ajax
I am developing an online Hotel Management system in asp[dot]net mvc. I have a list of items and each item has a checkbox in it which is for adding it to the order list whenever it is to be added. Problem is whenever I click "Add To Orders" button I get "error alert". I want Get Method of order controller to be called so that data in it should be shown in the view. Also check whether my post method is right or not?
<div class="form-group">
<div class="col-md-offset-2 col-md-2">
<input value="Add to Orders" class="btn btn-primary" onclick="submitItems()" />
#*<input id="submit" value="Place an Order" class="btn btn- primary" onclick="" />*#
</div>
</div>
<script>
//$('#submit').on('click', function (e) {
// e.preventDefault();
var submitItems = function () {
var arrItems = [];
var commaSepratedValues = "";
$("#itemList input[type=checkbox]").each(function (index, val) {
debugger;
var checkedId = $(val).attr("id");
var arr = checkedId.split("_");
var currentItemId = arr[1];
var isChecked = $("#" + checkedId).is(":checked", true);
if (isChecked) {
arrItems.push(currentItemId);
}
})
if (arrItems.length != 0) {
commaSepratedValues = arrItems.toString();
$.ajax({
url: "/Order/Create",
type: "GET",
data: { ItemList: commaSepratedValues },
success: function (data) {
alert('success');
},
error: function () { alert('error'); }
});
}
}
</script>
Above is the code where my function executes and then the problem arises.
Main Menu
Step 1
Step 2
step 3
I have a page which is being populated with a list of checkboxes for each record in the database. The user can select as many checkboxes as they want and the system should save their responses. I'm having a hard time getting my array of selected checkboxes to pass through to my Controller.
When i run my code and click the submit button i get a Maximum call stack size exceeded and i'm not sure how to solve that.
Image of the browser console error message: http://imgur.com/a/BnKLL
.cshtml:
#{
ViewBag.Title = "Subject";
}
<head>
<script src="~/Scripts/jquery-1.10.2.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>
</head>
<h2>Explore Subjects</h2>
<div>
<button id="SubmitButton">Save Changes</button>
<div style="border-bottom:solid">
<h4>Your Followed Subjects</h4>
<div id="FollowedSubjects">
#foreach (var subject in Model.FollowedSubjects)
{
<input type="checkbox" name="SubjectCheckBox" checked="checked" value=#subject.SubjectId>#subject.SubjectDetail.Subject<br>
}
</div>
</div>
<div id="AllSubjects">
<br />
<h4>More Subjects to Follow</h4>
<p>Ordered by number of bills with subject</p>
#foreach(var subject in Model.AllSubjects)
{
<div class="subjectDisp">
<input type="checkbox" name="SubjectCheckBox" value=#subject.Subject.SubjectId>#subject.Subject.Subject (#subject.Count) <br>
</div>
}
</div>
</div>
<script>
$(document).ready(function () {
$('#SubmitButton').click(function () {
var checkboxes = document.getElementsByName("SubjectCheckBox");
var checked = [];
for (var i = 0; i < checkboxes.length; i++) {
if (checkboxes[i].checked) {
checked.push(checkboxes[i]);
}
}
$.ajax({
url: '#Url.Action("FollowSubjects", "Home")',
type: 'POST',
data: { Parameters: checked },
success: function (result) {
alert("success");
},
error: function (result) {
alert("error");
}
});
alert("there")
});
});
</script>
My controller funtion that im trying to call.
[HttpPost]
public ActionResult FollowSubjects(int[] Parameters)
{
int i = 0;
return View();
}
Eventually i will have this hit the database but for now i just put a breakpoint at int i = 0; to see what gets passed to the function.
You can send it as an array of string and convert them to int at server side or Stringify it and send
var checked=""
$(checkboxes).each(function () {
checked += this + ',';
i++;
ajax --> data: { Parameters: checked },
[HttpPost]
public ActionResult FollowSubjects(string Parameters)
{
// Do your task
return View();
}
When I select Date in DateTimePicker, it's invoking public ActionResult Index(DateTime? test). It returns some items into the view, but those items do not appear on Index. It seems that this does not work, and I'm unsure why:
<h1>Items</h1>
#foreach (var item in Model)
{
<br />#item.Date
}
Controller:
public class HomeController : Controller
{
//
// GET: /Home/
public ActionResult Index()
{
List<Table> temp = new List<Table>();
return View(temp);
}
[HttpPost]
public ActionResult Index(DateTime? test)
{
masterEntities m = new masterEntities();
List<Table> temp = m.Table.Where(key => key.Date == test).Select(key => key).ToList();
return View(temp);
}
}
Index.cshtml:
#model IEnumerable<DatePicker.Models.Table>
#{
ViewBag.Title = "Index";
}
<script src="~/Scripts/jquery-2.2.0.min.js"></script>
<script src="~/Scripts/moment.min.js"></script>
<script src="~/Scripts/bootstrap.min.js"></script>
<script src="~/Scripts/bootstrap-datetimepicker.min.js"></script>
<link href="~/Content/bootstrap.min.css" rel="stylesheet" />
<link href="~/Content/bootstrap-datetimepicker.min.css" rel="stylesheet" />
<div class="container">
<div class="row">
<div class='col-sm-6'>
<div class="form-group">
<div class='input-group date' id='datetimepicker1'>
<input type='text' class="form-control" />
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
</div>
<script type="text/javascript">
$('#datetimepicker1').datetimepicker({ useCurrent: false });
$('#datetimepicker1').on("dp.hide", function (e) {
//var temp = $('#datetimepicker1').data('DateTimePicker').date().format('YYYY-MM-DD HH:mm')
$.ajax({
url: "/Home/Index",
type: "POST",
data: { test: $('#datetimepicker1').data('DateTimePicker').date().format('YYYY-MM-DD HH:mm') },
//data: {test: temp },
});
});
</script>
</div>
</div>
<h1>Items</h1>
#foreach (var item in Model)
{
<br />#item.Date
}
First you send an empty list to the view:
List<Table> temp = new List<Table>();
return View(temp);
So the loop doesn't show anything because, well, there's nothing to show. It's an empty list.
Then you make an AJAX request to get items:
$.ajax({
url: "/Home/Index",
type: "POST",
data: { test: $('#datetimepicker1').data('DateTimePicker').date().format('YYYY-MM-DD HH:mm') },
//data: {test: temp },
});
But you don't do anything with those items. You basically ignore the response from the AJAX request.
So... The data doesn't display because you haven't written any code to display the data. The AJAX request should have some sort of callback function to do something with the returned response:
$.ajax({
url: "/Home/Index",
type: "POST",
data: { test: $('#datetimepicker1').data('DateTimePicker').date().format('YYYY-MM-DD HH:mm') },
//data: {test: temp },
success: function (data) {
// do something with the response here
}
});
What you do with the response is up to you. Is it JSON? HTML? Based on the server-side code, it looks like it's HTML. So you can maybe put it into an element on the page. Something like this, perhaps:
$('#someElement').html(data);
That's just one example, and would of course require an element of some sort that you can identify to hold the response. You could do a lot of other things with the response.
One thing to note, however, is that your response appears to be an entire page. It includes script tags, link tags for CSS, and all sorts of markup that you otherwise already have on the client. So putting the entire page into an element isn't going to work right.
You might want to return just a partial view for this AJAX response. Or, otherwise, instead of using AJAX at all just navigate to the action to get that entire page.