using the following script, I am trying to access the variables being sent using data in the ajax function but I couldn't.
<script>
$('#inline-username').click(function () {
var comments = $('#inline-username').val();
//var selectedId = $('#hdnSelectedId').val();
$.ajax({
url: '#Url.Action("UpdateOrder")', // to get the right path to controller from TableRoutes of Asp.Net MVC
dataType: "json", //to work with json format
type: "POST", //to do a post request
contentType: 'application/json; charset=utf-8', //define a contentType of your request
cache: false, //avoid caching results
data: { test: $(this).text() }, // here you can pass arguments to your request if you need
success: function (data) {
// data is your result from controller
if (data.success) {
alert(data.message);
}
},
error: function (xhr) {
alert('error');
}
});
});
here is the action in the controller
public ActionResult UpdateOrder()
{
// some code
var test = Request.Form["test"];
return Json(new { success = true, message = "Order updated successfully" }, JsonRequestBehavior.AllowGet);
}
I tried Request.Form["test"] but the value of it is null. how should I receive the objects of data?
Your ActionResult is GET And you have no input parameter for your ActionResult so either change those or see below:
<script>
$('#inline-username').click(function () {
var comments = $('#inline-username').val();
//var selectedId = $('#hdnSelectedId').val();
$.ajax({
url: /ControllerName/ActionName
dataType: "json",
type: "GET",
contentType: 'application/json; charset=utf-8', //define a contentType of your request
cache: false,
data: { test: comments },
success: function (data) {
// data is your result from controller
if (data.success) {
alert(data.message);
}
},
error: function (xhr) {
alert('error');
}
});
});
Then within your controller:
public ActionResult UpdateOrder(string test)
{
// some code
return Json(new { success = true, message = "Order updated successfully" }, JsonRequestBehavior.AllowGet);
}
Update
Remember if you want to use POST then action you are calling has to be [HttpPost] like:
[HttpPost]
public ActionResult Example()
When there is no HTTP above your ActionResult Then Its By Default Get.
The action method should be decorated with the [HttpPost] attribute. Have you used the debugger to ensure that you're actually calling in to that method?
You can always just define a view model in C# and then accept that as a parameter to your post method - Asp.MVC will parse the post data for you as long as the names of the values are the same as your model.
Have you marked your action method with [HttpPost] attribute. ?
This post helped me a lot. I did the GET but POST raise an Internal Server Error just with [HttpPost]:
[HttpPost]
public ActionResult SaveOrder(int id, string test, string test2)
So i had to set params data with JSON.stringify and it worked. My full ajax request for POST:
$.ajax({
url: "/Home/SaveOrder",
dataType: "json",
type: "POST",
contentType: 'application/json; charset=utf-8', //define a contentType of your request
cache: false,
data: JSON.stringify({ id:2, test: "test3", test2: "msj3" }),
success: function (data) {
// data is your result from controller
if (data.success) {
alert(data.message);
}
},
error: function (xhr) {
alert('error');
}
});
Related
I trying send data to my controller. Controller sends all data to client correcly but from client to controller not..
My front code:
$(document).ready(function () {
$("#MessageSend").click(function () {
var serviceURL = '/User/Chat';
var model = {
Message: $("#Message").val()
}
$.ajax({
type: "POST",
url: serviceURL,
data: model,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: successFunc,
error: errorFunc
});
function successFunc(data, status) {
alert(data);
}
function errorFunc() {
alert('error');
}
});
});
And my controller, I have two versions - non of those versions works.
[HttpPost]
public IActionResult Chat(ChatMessage model)
{
Console.WriteLine(model.Message);
return Json("chamara");
}
and
[HttpPost]
public IActionResult Chat(string Message)
{
Console.WriteLine(Message);
return Json("chamara");
}
Thank you for help.
The JSON.stringify() method converts a JavaScript value to a JSON string, hence
You need to change the data in a way that the Json can "understand" it
for that change to
data: JSON.stringify(model)
for more information about it look Here
Looking at your code, seems you are trying to send a JSON to User controller but your controller is expecting a string (controller example 2).
Also, it is a good practice to create specific classes for binding events via jquery such as "js-messageSend". It will minimize the chance of your script breaking if you need to change the Message class for any reason in the future, but forget that you have an event on it.
Try this:
$(document).ready(function () {
$("#MessageSend").click(function () {
var messageText = $("#Message").val();
$.ajax({
type: "POST",
url: '/User/Chat',
data: { Message: messageText },
success: successFunc,
error: errorFunc
});
function successFunc(data, status) {
alert(data);
}
function errorFunc() {
alert('error');
}
});
});
I am passing a viewModel from ajax call like this:
$.ajax("url", {
data: JSON.stringify({ vm: ko.toJS(ko.utils.unwrapObservable(window.viewModel)) }),
type: "POST",
async: performAsyncCall !== undefined ? performAsyncCall : true,
contentType: "application/json",
dataType: "json",
success: function (result) {
//Code here
},
error: function (error) {
//Code here
},
complete: function () {
//Code here
}
});
And my controller method (using mvc 4) is like this:
[HttpPost]
public ActionResult Method(CustomViewModel vm)
{
//Code here
}
window.viewModel (on javascript code) has a property called CreationDate equal to CustomViewModel (on c# code) who has a CreationDate property also. Before to do the post to the server from client, CreationDate has this value (6:48am):
But the same property has this value (2:48am) on server:
I need the value that is on client but i didn't found how it value is changing, somebody can help me?
Send TimeZone offset as well and you'll know what the user time offset is. Use getTimezoneOffset() on JavaScript Date object. Documentation
If you don't want to change your model you can simply add additional parameter to your action method:
[HttpPost]
public ActionResult Method(CustomViewModel vm, int timezoneOffset)
{
//Code here
}
In JS:
var toSend = ko.toJS(ko.utils.unwrapObservable(window.viewModel));
$.ajax("url", {
data: JSON.stringify({ vm: toSend, timezoneOffset: toSend.CreationDate.getTimezoneOffset() / 60 }),
type: "POST",
async: performAsyncCall !== undefined ? performAsyncCall : true,
contentType: "application/json",
dataType: "json",
success: function (result) {
//Code here
},
error: function (error) {
//Code here
},
complete: function () {
//Code here
}
});
I am trying to pass the data of the view model to one js method and from there I need to pass the VM to another controller method to show the data.
here is what I have did:
$(document).ready(function () {
var content = GetHomeContent('/Home/CastContent');
if (content) {
saveBDContent('/Message/Details/', content);
}
});
function GetHomeContent(url) {
var modelData;
$.ajax({
url: url,
cache: false,
async: false,
type: "GET",
contentType: 'application/json',
success: function (data) {
if (data) {
modelData = data;
}
},
error: function (data) {
status = false;
}
})
return modelData;
};
function saveBDContent(url, data) {
var status = false;
$.ajax({
url: url,
cache: false,
async: false,
type: "GET",
data: JSON.stringify(data),
contentType: 'application/json',
success: function (data) {
if (data == "200") {
status = true;
}
},
error: function (data) {
status = false;
}
})
return status;
};
The problem am facing is , the content I retrived from the method show the namespace of the ViewModel. When I pass that to the new controlled the Viewmodel content is coming null.
Do I need to add anything to get/Pass the proper content ?
The Dummy method skeleton
public ActionResult CastContent()
{
CastVM broadcastVM = new CastVM();
return Json( broadcastVM);
}
I have missed out the JsonRequestBehavior.AllowGet in my controller method, I have added and the results are coming perfectly.
public ActionResult CastContent()
{
CastVM broadcastVM = new CastVM();
return Json( broadcastVM,JsonRequestBehavior.AllowGet);
}
and also I have set the HTTP status as post in the jquery method
Do something like that in the Controller:
public JsonResult QuickSave(BookEntry bookEntry) {
YourViewModel model = new YourViewModel();
return Json(model);
}
EDIT >> The associated Javascript code is :
$.ajax({
type: "POST",
url: 'The URL',
data: 'The JSON data',
dataType: "json",
success: function (theViewModel) {
// Do some JS stuff with your model
},
error: function (xhr, status, error) {
// Do some error stuff
}
});
Model:
public class JsonRequest
{
public string Data { get; set; }
}
Action:
[HttpPost]
public ActionResult Index(JsonRequest data)
{
return new JsonResult()
{
Data = string.Format("Data: {0}", data.Data), // data.Data == null here
JsonRequestBehavior = JsonRequestBehavior.AllowGet
};
}
AJAX:
$.ajax({
type: 'POST',
url: '#Url.Action("Index", "Home")',
cache: false,
data: JSON.stringify({ data: "Hello World!" }),
success: function(data) {
alert(data);
}
});
JsonRequest object has an instance in Index action but it's Data property was not mapped to the passed JSON. How can I achieve this?
You need to remove JSON.stringify() call, because jQuery do it itself. And according standarts it's better to write {"Data" : "Hello world"} ("Data" in quotes).
Well you are specifying data not Data when passing the object back up to the server. This may be the root of the problem. Also specify the contentType in your AJAX request.
$.ajax({
type: 'POST',
contentType: 'application/json',
url: '#Url.Action("Index", "Home")',
cache: false,
data: JSON.stringify({ Data: "Hello World!" }),
success: function(data) {
alert(data);
}
});
http://api.jquery.com/jQuery.ajax/
One of my jquery ajax posts sends post data to my .NET MVC3 controller method, but at the controller method, the data shows up as null. I have many other ajax posts that use practically the same method body, and they all work fine, so I'm not sure what is happening.
Ajax post:
$.ajax({
url: '/Entity/Relate',
type: 'POST',
dataType: 'json',
contentType: 'applicaiton/json; charset=utf-8',
data: { primaryEntityId: parseInt(entityParentId, 10), relatedEntityId: _createdId },
success: function (data)
{
//do stuff
},
error: function ()
{
// throw error
},
complete: function ()
{
//do more stuff
}
});
Controller method:
[HttpPost]
public int Relate(int primaryEntityId, int relatedEntityId)
{
return relationshipRepository.Add(primaryEntityId, relatedEntityId);
}
The problem is when I break on the Relate method, primaryEntityId and relatedEntityId are null, even though in the post data in Firebug, it shows that {primaryEntityId: 13, relatedEntityId: 486} have been posted to the method.
Any suggestions or ideas as to why the post looks good, but the controller isn't picking up the data?
but at the controller method, the data shows up as null
That's not possible because Int32 is a value type and value types in .NET cannot be null. You probably meant that they are assigned to the default value. Anyway.
The problem is related to the contentType parameter that you have set in your AJAX request. You need to remove it because you are not sending JSON but a standard application/x-www-form-urlencoded request:
$.ajax({
url: '/Entity/Relate',
type: 'POST',
dataType: 'json',
data: {
primaryEntityId: parseInt(entityParentId, 10),
relatedEntityId: _createdId
},
success: function (data)
{
//do stuff
},
error: function ()
{
// throw error
},
complete: function ()
{
//do more stuff
}
});
If you want to send a JSON request define a view model:
public class RelateViewModel
{
public int PrimaryEntityId { get; set; }
public int RelatedEntityId { get; set; }
}
then have your controller take this view model as argument:
[HttpPost]
public int Relate(RelateViewModel model)
{
return relationshipRepository.Add(model.PrimaryEntityId, model.RelatedEntityId);
}
and finally send a real JSON request (using the JSON.stringify method):
$.ajax({
url: '/Entity/Relate',
type: 'POST',
dataType: 'json',
contentType: 'application/json;charset=utf-8',
data: JSON.stringify({
primaryEntityId: parseInt(entityParentId, 10),
relatedEntityId: _createdId
}),
success: function (data)
{
//do stuff
},
error: function ()
{
// throw error
},
complete: function ()
{
//do more stuff
}
});