I have a list of user inputs in an object 'data'. (for e.g data.username, data.password, data.age)
i am passing the data object to backend like this using angular.
var submits = "=" + JSON.stringify(data);
$.ajax({
type: "POST",
url: serviceURL,
data: submits
});
I am passing two more objects. selections and grid. how can i pass all these three together in one ajax call ? or do i have to transfer it independently. will it affect the performance if i transfer these details separately.
can i do something like this to send the object together in one ajax call?
var data = {};
data[0] = data1;
data[1] = data2;
How can i retrieve it separately at the server side using c# if at all they are passed together.
Heres the 3 objects that i need to pass
data -->> ["Raul","New York","31"]
selections-->> ["dy.txt","my.txt","yy.txt"]
grid--> ["sesion","id"]
Assuming you have a view model like this in your server side
public class CreateUserViewModel
{
public string UserName{set;get;}
public string Location {set;get;}
public int Age {set;get;}
}
public class RegisterViewModel
{
public CreateUserViewModel User {set;get;}
public List<string> Selections {set;get;}
public List<string> Grid {set;get;}
}
and an MVC action method like this
public ActionResult Create(RegisterViewModel model)
{
// read model and save and return some JSON response
}
You can simply build the javascript object which matches the structure of the view model and post it using angualr's $http service. No need to worrry about setting content-Type or Json stringifying it. Angualr will take care of it.
var model={ User : {} ,Selections :[], Grid=[] };
model.User.Age =23;
model.User.UserName ="test";
model.User.Location="New York";
model.Selections.push("dy.txt");
model.Selections.push("some.txt");
model.Grid.push("session");
model.Grid.push("id");
var url="replcaeUrltoYourActionMethodHere";
$http.post(url, model)
.then(function(response)
{
// do something with the response
// var result= response.data
});
You can send multiple objects / variables in ajax with:
var submits = "=" + JSON.stringify(data);
$.ajax({
type: "POST",
url: serviceURL,
data: {submits : submits, data1:data1, data2:data2}
});
In your C# you can access data1 and 2 in the same way as you handle submits now.
Depending of what is in data1 and data2 you might need to stringify it first.
second option:
You can also if you want to (but it is more ugly) use the stringify on everything at once and only pass the string:
data = {};
data["data1"] = data1;
data["data2"] = data2;
var submits = "=" + JSON.stringify(data);
Are you using WebApi or MVC on the server? If so, the simplest approach would be to create a class which holds the 3 entities you need to send and leverage the built-in model-binding
So in your example you list what looks to be a user form, selections and grids. I'm not really sure what the last two are but an example Model might look something like this:
public class UserSubmissionViewModel
{
public UserSubmissionViewModel() { }
public UserFormModel User {get;set;}
public SelectionsModel Selections { get; set; }
public GridModel Grids { get; set; }
}
Then on your web api controller or your MVC controller you'd have a method such as this:
public async Task<IHttpActionResult> Submit(UserSubmissionViewModel model)
And your javascript would resemble something roughly like this:
var toSend = {"UserFormModel":data, "SelectionsModel":selections, "GridModel":grids};
$.ajax({
type:"POST",
data:toSend, //<--- you might need to JSON.stringify this, cant test this code at the moment
url:serviceURL //<-- Calls your Submit method on the controller
});
Related
I'm trying to make a simple post call in a controller method using an ajax call from a razor view.The ajax call does call the controller method but it does not send the object from that I'm trying to send.I tried multiple solutions from Stackoverflow without success including using Json.stringify() method and using the [HttpPost] attribute in controller method.I also have the name of the object from View the same as the name of the controller method parameter.This is the script where I make the Ajax call:
<script>
$(document).ready(function () {
$('.send-all').on('click', function() {
var data = $('#verticalScroll tr').map(function () {
var $row = $(this);
return {
id: $row.find('.id').text().trim(),
companyName: $row.find('.companyname').text().trim(),
price: $row.find('.price').text().trim(),
quantity: $row.find('.quantity').text().trim(),
}
}).get();
var BID = [];
for (var i = 0; i < data.length; i++) {
if (data[i].id != null && data[i].id != "") {
BID.push(data[i]);
}
}
$.ajax(
{
type: "POST",
url: "/User/UpdateBID",
data: BID,
cache: false,
async: true,
dataType: "json",
success: function (data) {
alert(data);
},
});
});
});
</script>
and this is the method from the controller :
public ActionResult UpdateBID(object BID)
{
string c = JsonConvert.SerializeObject(BID);
//Context.UpdateBID(b);
return RedirectToAction("SesionIndividual", TempData["LoginModel"]);
}
The controller method is called,but the object is null.I also made sure the JavaScript object is not null.I also tried to send other objects just to test it,and I have the same result,the parameter in the controller method is null.
I have the name of the object from View the same as the name of the controller method parameter.
The name of the object is irrelevant, as it's just a variable name. This gets converted to the name data anyway - ie data:BID = data=BID so the "variable name" passed via ajax is "data". The properties in that variable need to match.
The short answer is you your "data" variable needs a property that matches the action parameter name, ie:
data: { BID: BID },
The long(er) answer is that the MVC model binder will attempt to match property names with your parameter names. In this case you've made it difficult on yourself by using object BID instead of an actual model, so there are no properties to match so it can only match on the parameter itself.
If you created a model that matched the data being passed:
public class BIDModel {
public string companyName { get;set; }
public string price { get;set; }
public string quantity { get;set; }
}
and used that in your action
public ActionResult UpdateBID(BIDModel BID)
then passing data: BID would work as the properties of data would be matched with the properties of BIDModel - you could still use data: { BID: BID } and the MVC model binder would match the data.BID property to your parameter name directly (and the properties within each would then be mapped).
To cover:
[HttpPost] attribute in controller method.
the [HttpPost] attribute does not make it a post method - instead of restricts the http verb to POST. You generally don't need this. It's useful where you have two methods with the same name but different overloads and one for the GET with an equivalent POST (where the GET parameter is just an id but the POST is the full model). It can also be used as additional security.
In your case, you are getting inside the action (just with a null parameter) so that part is clearly working fine.
MVC will try to bind from model properties so there should be a property called BID
data: { BID: BID }
For anyone interested I realize what the problem was.I was trying to send an JavaScript array of objects to a method which theoretically accepted an array of those objects.Well,apparently this did not work.What I did was to create a new object in C# with a property which had a type of UpdateOrder[],something like that:
public class UpdateOrder
{
public int id { get; set; }
public string companyName { get; set; }
public string price { get; set; }
public int quantity { get; set; }
}
public class Term
{
public UpdateOrder[] Terminal { get; set; }
}
I created a similar Term object in Javascript and send it through AJAX in controller method and it worked.So,instead of sending directly an array,I created an object with a property which holds that array.
How to receive two parameters as an array in http action(List abc, List) xyz.
after that attempt I use a model class. lik
public class ItemAndChecque
{
public List<SaleItem> saleitem { get; set; }
public List<itemChecqe> itemchecq { get; set; }
}
public IHttpActionResult TowArrayValue(List<ItemAndChecque> abc)
I did many attempt to solve it but not... Some one can send me any Solution.
Your arrays need to be grouped in one object array:
var Indata = {saleitem: $scope.saleitem,itemchecq: $scope.itemchecq}
$http({
url: "someAPI",
method: "POST",
data: Indata
});
Add ItemAndChecque as model class to your backend.
Then you can receive it in your API Controller like this:
public void Post(ItemAndChecque request)
{
var productRepository = new ProductRepository();
var newProduct = productRepository.Save(request.product);
}
Here request contains 2 props with values of saleitem and itemchecq
Edit: based on the comment of #Icycool
Overview:
Currently, I try to create an ASP.NET Core MVC website which gets data from the server on page load. After that, the page uses knockout.js to maintain a viewmodel to update the data sent from the server (in the first step). Finally, there is a button which sends the edited data back to the server (through an AJAX request). But the corresponding value in my server method is always empty.
Current Approach:
First, there is my model class.
public class Order
{
public string Name { get; set; }
public int TemplateId { get; set; }
public decimal Price { get; set; }
public int Contingent { get; set; }
public int MaximumOrder { get; set; }
public int UserOrderCount { get; set; }
public Order() { }
public Order(SnackOffer offer)
{
Name = offer.Template.Name;
TemplateId = offer.Template.SnackTemplateId;
Price = offer.Price;
}
}
In my view I use the model class as a List (List) and load the data like this:
var model = new viewModel();
#(Json.Serialize(Model.Offers)).forEach(function (item, index) {
model.offers.push({
name: item.name,
templateId: item.templateId,
contingent: ko.observable(item.contingent),
userOrderCount: ko.observable(item.userOrderCount),
price: item.price,
maximumOrder: item.maximumOrder
});
})
The viewModel is defined like this (shortend for readability):
function viewModel() {
var self = this;
self.offers = ko.observableArray();
}
Now after someone hits the mentioned update button I call this javascript function:
self.ConfirmOrder = function () {
var data = ko.toJSON(self.offers);
$('#overlay').css('display', 'block');
$.ajax({
type: 'post',
url: '/Snack/ConfirmOrder',
data: data,
contentType: 'application/json; charset=utf-8',
success: function (result) {
$('#overlay').css('display', 'none');
},
error: function (result) {
console.log(result);
$('#overlay').css('display', 'none');
}
});
}
Here you can see that I use the ko.toJSON method to convert the observableArray to a JSON String and use this string as the data argument for the ajax post.
The ConfirmOrder method in the MVC Controller looks like this currently:
[HttpPost]
public void ConfirmOrder(List<OrderSnackViewModel.Order> offers)
{
foreach (var item in offers)
{
_logger.LogInformation(item.Name);
}
}
There is no logic yet cause the offers list is created (so not null) but the count of list items is always 0.
In a concret example this is the JSON string I receive from the server while load the view:
[{"name":"Test","templateId":1,"price":1.94,"contingent":4,"maximumOrder":7,"userOrderCount":0},{"name":"Test 1","templateId":2,"price":1.50,"contingent":30,"maximumOrder":7,"userOrderCount":0}]
And this is the string i produce with the ajax call:
[{"name":"Test","templateId":1,"contingent":4,"userOrderCount":0,"price":1.94,"maximumOrder":7},{"name":"Test 1","templateId":2,"contingent":30,"userOrderCount":0,"price":1.5,"maximumOrder":7}]
What have I tried already:
I have tried to use FromBody in my MVC Controller
I have tried to prefix the JSON output with the name offer so my controller method can map the JSON string items to the object. (e.g. data = '{ "offers":' + data + '}'; )
I have tried to rename the Properties of my model to match exactly the JSON names. So I renamed Name to name and Contingent to contingent and so on.
I have tried to use an array instead of the List in the MVC controller action
Is there a master somewhere which can help me with this problem?
(If you need some more information please do not hesitate to ask)
Thanks to the input of #adiga I have found the solutions for (my) error.
[HttpPost]
public JsonResult ConfirmOrder([FromBody]List<Order> offers)
{
_logger.LogInformation("COUNT -> " + offers.Count());
foreach (var item in offers)
{
_logger.LogInformation(item.Name);
}
}
This is the working solution. I thought I already have tried it but maybe I have forgoten the content-type for the ajax post.
var data = ko.toJSON(self.offers);
$('#overlay').css('display', 'block');
$.ajax({
type: 'post',
url: '/Snack/ConfirmOrder',
data: data,
contentType: 'application/json; charset=utf-8',
success: function (result) {
//location.reload();
$('#overlay').css('display', 'none');
},
error: function (result) {
console.log(result);
$('#overlay').css('display', 'none');
}
});
Thanks again for all responses!
We are trying to send multiple forms with one Ajax (jQuery) Call to an ASP application.
We use the following jQuery code:
var formContainer = {
Form1 : form1.serialize(),
Form2 : form2.serialize()
}
$.ajax({
type: "POST",
url: '#Url.Action("CreateModel", "Controller")',
data: formContainer,
success: function (result) { }
});
On the server we receive the following in the Request.Form property:
Key : Value
Form1 : All serialized form elements for Form1
Form2 : All serialized form elements for Form2
Normally we use the following method so ASP is automaticly creating the object with the right property value:
public ActionResult CreateModel(ClassForForm1 obj)
But because the two forms are send together the modelbinder cannot bind and build the class.
So for this action we want the modelbuilder to use the values in Request.Form["Form1"].
We can't use a custom modelbinder, because we use an extern library (DevExpress ,they wrote an own implementation above this).
We are using the MEF framework to add functionalities (these functionalities are added as forms on the view). For this reason we do not know what too expect on the backend. So writing a wrapper ViewModel is not acceptable.
The functionality for proccessing the other forms data will be handeled inside other modules.
Any solutions are welcome!
Thanks in advance.
This is typically done using a combined view model. Otherwise, you would need to manually parse the request parameters. Here is a fiddle showing how to combine the data from multiple forms.
$(function() {
$('button').click(function(e) {
var form1 = $('#form1');
var form2 = $('#form2');
$.ajax({
type: "POST",
url: '/echo/html/',
data: form1.serialize()+"&"+form2.serialize(),
success: function (result) {
alert(result);
}
});
});
});
On the server, your view model would require:
public class IndexViewModel {
// properties from form1
public string first { get; set; }
// properties from form2
public string last { get; set; }
}
public class First {
public string first { get; set; }
}
public class Last {
public string last { get; set; }
}
And your action signature:
[HttpPost]
public ActionResult Index(IndexViewModel model) {
var firstModel = (new First()).CloneMatching(model);
var lastModel = (new Last()).CloneMatching(model);
return RedirectToAction("Thanks");
}
See Best way to clone properties of disparate objects for the CloneMatching extension method.
If you create you javascript object like this:
var formContainer = { obj : {
Form1 : form1.serialize(),
Form2 : form2.serialize()
}
}
The controller should match it up with the name 'obj' you created in the javascript with the 'obj' in your method....
public ActionResult CreateModel(ClassForForm1 obj)
My previous sample worked just because my class has name and value props. I'm realy sorry for that. But now you can see working DEMO
JS
function mapForm(form)
{
var result = {};
$.map($(form).serializeArray(),
function(el){
mapFormProperty(result, el);
});
return result;
}
function mapFormProperty(form, property)
{
form[property.name] = property.value;
}
$('.submit').click(function(){
var form1 = mapForm($('#form1'));
var form2 = mapForm($('#form2'));
var formContainer = {
'Form1': form1,
'Form2': form2};
$.ajax({
type: "POST",
url: '#Url.Action("CreateModel", "Controller")',
data: JSON.stringify(formContainer),
success: function (result) { }
});
Operations with forms and form container should give you next json string
"{"Form1":{"Prop1":"Value1","Prop2":"Value2"},"Form2":{"Prop1":"Value1","Prop2":"Value2"}}"
And your model binder will be able solve this, if you change your action signature
Action
public ActionResult CreateModel(ClassForForm1 Form1) //argument name must be equal to data property
//but not equal to class name
And it should work. it works in my test sample
I have a web application in MVC3 and i'm using Telerik Grid Batch Editing.
Batch Editing have save changes button which returns UPDATED COLUMNS to controller IEnumerable list like
[GridAction]
public ActionResult Update(IEnumerable<Customers> updated)
{
///user codes
}
but how to collect updated rows and make array send like IEnumerable list from Javascript with ajax to Controller ?
EDIT
I'm putting my view png
I just want to send updated rows data to Controller and Save Changes button can do this but before thje send values i just want to ask to user "Are you sure to Load?" and after the send data I want to refresh all the page
So i thinked to do this with ajax request because i'm also using batch editing with ajax requests
Do you have any exprience for this situation?
Use the AJAX POST as I have used in my Tested Javascript function as::
function TestAjax() {
var Test = [];
for (var i = 0; i < 5; i++) {
Test.push({ ID: i, Name: "RJ" });
}
$.ajax({
type: 'POST',
url: rootUrl('Home/TestPost'),
contentType: "application/json",
//data: { Test: JSON.stringify( data) },
data:JSON.stringify( {Test: Test}),
success: function (data) {
alert("Succeded");
}
});
}
And on Server Side(i.e. In Controller) use something Like::
public ActionResult TestPost(IEnumerable<TestViewModel> Test)
{
return Json(3);
}
The ViewModel Contains different propeties which are of different datatypes as::
public class TestViewModel
{
public long ID { get; set; }
public string Name { get; set; }
}
This is working fine. May be this will help you.