I have a JavaScript method dotrack(). I am calling an action UpdateJson from the JavaScript through AJAX. I am passing JSON data type and the method will return true/false. After executing system is going to success block but the returned value is not true/false.
My question is, whether the system is calling the action properly or not.
function doTrack() {
var D = { 'pageUrl': PageURL, 'linkUrl': linkURL, 'linkName': linkText, 'linkType': ControlType, 'leadId': LeadID, 'userType': UserType, 'portalId': PortalID, 'languageId': LanguageID, 'countryId': CountryID };
D = JSON.stringify(D);
$.ajax({
type: "POST",
url: "portal/UpdateJson",
data: D,
contentType: "application/json; charset=utf-8",
success: function (result) {
if(result == true)
alert("Success");
else
alert(result);
},
error: function (xhr, ajaxOptions, thrownError) {
alert(thrownError + " :: " + ajaxOptions);
//alert('unable to complete ajax request.');
}
});
}
Controller is Portal & Action is UpdateJson:
[HttpPost]
public ActionResult UpdateJson(string pageUrl, string linkUrl, string linkName, string linkType, string leadId, string userType, string portalId, string languageId, string countryId)
{
//do stuff
return Json(true);
}
Please help.
Your ajax code is working fine.
You just need to use the result variable directly instead of result.val.
success: function (result) {
exists = (result);
alert(exists);
}
If you want to use val property, you need to return an object that has val property too.
return Json(new { val = true });
Also you should use Url.Action for preventing incorrect URL.
url: "#Url.Action("UpdateJson", "portal")"
Related
I have looked over the net to figure out what my mistake is. All suggestions I found I tried, without any succes. I access the httppost action in my controller but the parameters stays empty.
AJAX function
var dataPost = { 'id': id, 'val': val };
debugger;
$.ajax({
type: 'POST',
url: '/Extensions/UpdateJson',
data: dataPost ,
contentType: 'json',
success: function () {
alert("succes");
},
error: function () {
alert("error");
}
});
On debug DataPost is populated.
Controller
[HttpPost]
public ActionResult UpdateJson(string id, string val)
{
//do stuff
return Json(true);
}
The parameters I used in my controller have the same name as in my Ajax function. The format passed is json, I have also tried populating my data with:
var dataPost = { 'id': 'id', 'val': 'val' };
But this doesn't make any difference. I have also tried to work with a Class, like -->
Class
public class ScheduleData
{
public string id { get; set; }
public string val { get; set; }
}
Controller
public ActionResult UpdateJson(ScheduleData data)
{//Do something}
Any help would be appreciated. Thanks in advance
The format passed is json
No, not at all. You are not sending any JSON. What you do is
data: { 'id': id, 'val': val }
But as the documentation clearly explains this is using the $.param function which in turn uses application/x-www-form-urlencoded encoding.
So get rid of this contentType: 'json' property from your $.ajax call.
Or if you really wanna send JSON, then do so:
var dataPost = { 'id': id, 'val': val };
$.ajax({
type: 'POST',
url: '/Extensions/UpdateJson',
data: JSON.stringify(dataPost),
contentType: 'application/json',
success: function () {
alert("succes");
},
error: function () {
alert("error");
}
});
Things to notice:
usage of JSON.stringify(dataPost) to ensure that you are sending a JSON string to the server
contentType: 'application/json' because that's the correct Content-Type value.
I am trying to use this following function to get some data.
function SaveData() {
var value = $('#tblRadio').find('input[type="radio"]:checked').val();
$.ajax({
type: "POST",
url: '/home/IsEmployeeVoted',
success: function (result) {
alert(result); // shows whole dom
if (parseInt(result) > 0) {
$('div.dvVoteWrapper').removeAttr('style');
$('div.popupArea').removeAttr('style');
}
else {
window.location = '/home/EmployeeVote?regoinID='+ value;
}
},
error: function () {
alert("Sorry, The requested property could not be found.");
}
});
}
The controller function:
public ActionResult EmployeeVote(string regionID)
{
}
regionId keep coming null to me though the value variable have some value in javascript. any ideas ??
Change
data: 'regionID=' + value,
to
data: {regionID: value},
You need to pass the data as an object literal. Another option (which I dont recommend), which is closer to your idea:
url: '/home/IsEmployeeVoted?regoinID=' + value,
But if you want this to work you would need to remove the type: 'POST' (since GET is the default type).
Few issues:
var value = $('#tblRadio').find('input[type="radio"]:checked').val();
I'd make sure that value is not undefined/null.
use alert(value) before the ajax call.
Also you are specifying GET but POSTING data to the server.
You could also wrap the regionId inside a javascript object, for instance.
$.ajax({
type: "POST",
data: { regionID: value },
url: '/home/IsEmployeeVoted',
success: function (data) {
alert(data); // shows whole dom
if (parseInt(data) > 0) {
$('div.dvVoteWrapper').removeAttr('style');
$('div.popupArea').removeAttr('style');
}
else {
window.location = "/home/EmployeeVote";
}
},
error: function () {
alert("Sorry, The requested property could not be found.");
}
});
I need to bind the value in html list box. But ajax and return the value in client side. but it has the proper rerun value. I think Its return format is wrong. How to change this? My code is given below
public ActionResult value(bool sta1, bool sta2)
{
// my code
return Json(Selectedstudents.ToList(), JsonRequestBehavior.AllowGet);
}
ajax:
$.ajax({
//my code
dataType: 'json',
success: function (data) { // not trigger here
// my code
}
});
$.ajax ( {
url : "/ControllerName/Value"
type: 'Get'
data : { val1 : value1, val2:value2 }
datatype: 'json'
success : function(data) {
$("#listboxid").html(data);
do something...
}
});
and in controller
public JsonResult value(bool val1, bool val2)
{
// my code
result.Data = Selectedstudents.ToList();
result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
return result;
}
I'm new to Ajax and I'm trying to disable a checkbox if certain items are selected in a dropdown. I need to pass in the mlaId to the GetMlaDeliveryType(int Id) method in the RecipientsController.cs.
I'm not exactly sure how to set up the ajax call in the javascript function checkMlaDeliveryType(mlaId).
// MLA Add disable express checkbox if delivery type is electronic
$('.AddSelectedMla').change(function () {
var deliveryType = checkMlaDeliveryType($('.AddSelectedMla').val());
// disable express option if delivery type is Electronic
if (deliveryType == "Mail") {
$(".mlaExpressIndicator").removeAttr("disabled");
}else{
$(".mlaExpressIndicator").attr('checked', false).attr("disabled", true);
}
})
// ajax call to get delivery type - "Mail" or "Electronic"
function checkMlaDeliveryType(mlaId)
{
$.ajax({
type: "GET",
url: "/Recipients/GetMlaDeliveryType/" ,
data: mlaId,
dataType: ,
success:
});
}
RecipientsController.cs
public string GetMlaDeliveryType(int Id)
{
var recipientOrchestrator = new RecipientsOrchestrator();
// Returns string "Electronic" or "Mail"
return recipientOrchestrator.GetMlaDeliveryTypeById(Id);
}
EDIT:
Here's how the final javascript looked that worked
// MLA Add disable express checkbox if delivery type is electronic
$('.AddSelectedMla').change(function () {
checkMlaDeliveryType($('.AddSelectedMla').val());
})
// ajax call to get delivery type - "Mail" or "Electronic"
function checkMlaDeliveryType(mlaId)
{
$.ajax({
type: 'GET',
url: '#Url.Action("GetMlaDeliveryType", "Recipients")',
data: { id: mlaId },
cache: false,
success: function (result) {
// disable express option if delivery type is Electronic
if (result == "Mail") {
$(".mlaExpressIndicator").removeAttr("disabled");
} else {
$(".mlaExpressIndicator").attr('checked', false).attr("disabled", true);
}
}
});
}
$.ajax({
type: 'GET',
url: '/Recipients/GetMlaDeliveryType',
data: { id: mlaId },
cache: false,
success: function(result) {
}
});
then fix your controller action so that it returns an ActionResult, not a string. JSON would be appropriate in your case:
public string GetMlaDeliveryType(int Id)
{
var recipientOrchestrator = new RecipientsOrchestrator();
// Returns string "Electronic" or "Mail"
return Json(
recipientOrchestrator.GetMlaDeliveryTypeById(Id),
JsonRequestBehavior.AllowGet
);
}
Now your success callback will directly be passed a javascript instance of your model. You don't need to specify any dataType parameters:
success: function(result) {
// TODO: use the result here to do whatever you need to do
}
Set data in the Ajax call so that its key matches the parameter on the controller (that is, Id):
data: { Id: mlaId },
Note also that it's a better practice to use #Url.Action(actionName, controllerName) to get an Action URL:
url: '#Url.Action("GetMlaDeliveryType", "Recipients")'
I am trying to use jQuery.parseJSON to parse out the return value from an MVC3 controller action.
Controller:
[HttpPost]
public JsonResult LogOn(LogOnModel model, string returnUrl)
{
.. do stuff ..
if (errors.Count() < 0)
{
return Json(new object[] { true, model, errors });
}
return Json(new object[] { false, model, errors });
}
jQuery:
$.ajax({
url: form.attr('action'),
type: "POST",
dataType: "json",
data: form.serialize(),
success: function (data) {
var test = jQuery.parseJSON(data);
}
});
Json result from fiddler:
Content-Type: application/json; charset=utf-8
[false,{"UserName":"1","Password":"2","RememberMe":false},[{"Key":"","Errors":[{"Exception":null,"ErrorMessage":"The
user name or password provided is incorrect."}]}]]
Fiddler can parse the results:
The call to jQuery.parseJSON is returning null.
My questions is, how can I parse the json return value into an object?
Thanks!
You don't need to call parseJSON in your success handler, because ajax will have already parsed the JSON result (it does this automatically because you specified dataType:'json') into your array.
However, I'd recommend returning some sort of result object (whether you create an actual class in C# or use an anonymous type).
[HttpPost]
public JsonResult LogOn(LogOnModel model, string returnUrl)
{
.. do stuff ..
if (errors.Count() < 0)
{
return Json(new { success=true, model, errors });
}
return Json(new { success=false, model, errors });
}
and at the client
$.ajax({
url: form.attr('action'),
type: "POST",
dataType: "json",
data: form.serialize(),
success: function (result) {
alert(result.success);
// also have result.model and result.errors
}
});
You are actually returning an array of objects and they shoould be accessed like this in the success function:
var booleanValue = data[0];
var yourModel = data[1];
var yourErrors = data[2];
I did give #HackedByChinese an up vote because naming the properties might be a better way to go about it in the end. Howvbere this will solve your immediate problem.