I have a controller that return json object I checked the controller and it's working good.
Here is the Sample Result of my controller
{"CompliantCount":0,"NonCompliantCount":0,"StatusOfRiskItems":[{"Id":4,"Status":"Closed","Count":0},{"Id":1,"Status":"Open","Count":0},{"Id":2,"Status":"Mitigating Control Implemented","Count":0},{"Id":3,"Status":"Risk Accepted","Count":0}],"RiskLevelBreakdownOfOpenItems":[{"Id":0,"RiskLevel":"N/A","Count":0},{"Id":1,"RiskLevel":"Low","Count":0},{"Id":2,"RiskLevel":"Medium","Count":0},{"Id":3,"RiskLevel":"High","Count":0},{"Id":4,"RiskLevel":"Very High","Count":0}],"RiskLevelStatusPerDepartment":[],"CompliancePerDepartment":[],"CurrentRiskLevel":"N/A","ComplianceRating":NaN}
But when I consume the json in ajax it return null
function RiskRegisterReport(siteId, programId, departmentId, status, auditType, auditor, auditDate) {
var _data;
$.ajax({
type: "GET",
contentType: "application/json; charset=utf-8;",
url: hostpath + "/RiskRegister/RiskRegisterReport/",
dataType: "json",
async: false,
data: {
siteId: siteId,
programId: programId,
departmentId: departmentId,
statusId: status,
auditType: auditType,
auditor: auditor,
auditDate: auditDate
},
success: function (data) {
/// after getting the data
/// push the data.Compliant and data.NonCompiant to the array
_data = data;
}
});
return _data;
}
Related
I'm trying to POST an int with Ajax to my controller
Js
<script>
function FillCity() {
var provinceId = $(provinces).val();
$.ajax({
url: "FillCity",
type: "POST",
data: { id: provinceId },
dataType: "json",
traditional: true,
contentType: 'application/json; charset=utf-8',
success: function (data) {
$("#cities").html(""); // clear before appending new list
$.each(data, function (i, city) {
$("#cities").append(
$('<option></option>').val(city.Id).html(city.Name));
});
}
});
}
</script>
code in my controller :
[HttpPost]
public ActionResult FillCity(int id)
{
var cities = _context.City.Where(c => c.ProvinceId == 5);
return Json(cities);
}
but it always post 0 as id, I tried digits instead of provinceId, but it rtills send 0
You should create an class that have a Id Property.
public class ProvinceIdDto
{
public int Id { get; set; }
}
replace int id with ProvinceIdDto model in action
[HttpPost]
public ActionResult FillCity(ProvinceIdDto model)
{
var cities = _context.City.Where(c => c.ProvinceId == model.Id);
return Json(cities);
}
replace { id: provinceId } with JSON.stringify({ Id: provinceId }),
<script>
function FillCity() {
var provinceId = $(provinces).val();
$.ajax({
url: "FillCity",
type: "POST",
data: JSON.stringify({ Id: provinceId }),
dataType: "json",
traditional: true,
contentType: 'application/json; charset=utf-8',
success: function (data) {
$("#cities").html(""); // clear before appending new list
$.each(data, function (i, city) {
$("#cities").append(
$('<option></option>').val(city.Id).html(city.Name));
});
}
});
}
</script>
Another options is you can replace HttpPost method with HttpGet and pass id to action like this.
Change type: "POST", to type: "GET",
<script>
function FillCity() {
var provinceId = $(provinces).val();
$.ajax({
url: "FillCity?id="+provinceId,//<-- NOTE THIS
type: "GET",//<-- NOTE THIS
dataType: "json",
traditional: true,
contentType: 'application/json; charset=utf-8',
success: function (data) {
$("#cities").html(""); // clear before appending new list
$.each(data, function (i, city) {
$("#cities").append(
$('<option></option>').val(city.Id).html(city.Name));
});
}
});
}
</script>
C#
[HttpGet]
public ActionResult FillCity(int id)
{
var cities = _context.City.Where(c => c.ProvinceId == id);
return Json(cities);
}
when you do { id: provinceId } you are creating an object with property id
in your controller you are just expecting an id. You will need to ether:
A pass it as a query parameter url: "FillCity?id=" + provinceId
B create an object to be parsed from the request body.
public class Payload {
public int Id {get;set;}
}
and use it like this
public ActionResult FillCity([FromBody] Payload payload)
Can you verify this statement has a value:
var provinceId = $(provinces).val();
It's possible that isn't finding what you are looking for, and because you have the type int as a parameter, it defaults it to "0".
You shouldn't need to change it to a GET and your MVC method is fine as is. You can see from JQuery's own sample it should work:
$.ajax({
method: "POST",
url: "some.php",
data: { name: "John", location: "Boston" }
})
.done(function( msg ) {
alert( "Data Saved: " + msg );
});
I think it might not be finding the input field successfully.
I am migrating my MVC project to Core and I have been having a hard time fixing all the old ajax calls.
I can pass a model and string parameters into the controller, however, ints are not working for me.
I can wrap them into a JSON object as a string parameter such as [FromBody]string objId in the controller, but then I have to parse the int val from the Json {'objId' : 1}.
Is there a way I can avoid this and just pass an int?
below is the code I am trying.
[HttpPost]
public JsonResult PassIntFromView([FromBody]int objId)
{
//DO stuff with int here
}
here is the js.
var data = { "objId": 1};
$.ajax({
url: '#Url.Action("PassIntFromView", "ControllerName")',
data: JSON.stringify(data),
type: "POST",
dataType: 'JSON',
contentType: "application/json",
success: function(data) {
//do stuff with json result
},
error: function(passParams) {
console.log("Error is " + passParams);
}
});
The objId is always 0 in the controller.
I have tried this without doing JSON.stringify(data) as well with no result.
I have also tried all the different form attribute variations.
Try to use contentType as 'application/x-www-form-urlencoded':
var data = { objId: 1 };
$.ajax({
url: '#Url.Action("PassIntFromView", "ControllerName")',
type: "post",
contentType: 'application/x-www-form-urlencoded',
data: data,
success: function (result) {
console.log(result);
}
});
Then remove the [FromBody] attribute in the controller
[HttpPost]
public JsonResult PassIntFromView(int objId)
{
//Do stuff with int here
}
I believe your issue could be that you are passing an object to the api, but trying to turn it into a primitive. I know there is already a chosen answer, but give this a whirl.
var data = { };
data["objId"] = 1; //I just wanted to show you how you can add values to a json object
$.ajax({
url: '#Url.Action("PassIntFromView", "ControllerName")',
data: JSON.stringify(data),
type: "POST",
dataType: 'JSON',
contentType: "application/json",
success: function(data) {
//do stuff with json result
},
error: function(passParams) {
console.log("Error is " + passParams);
}
});
You create a model class
public class MyModel {
public int ObjId {get;set;}
}
Your controller should expect one of these
[HttpPost]
public JsonResult PassIntFromView([FromBody] MyModel data)
{
//DO stuff with int here
}
JSON has a preference for strings not integers. You are better off to use JSON.stringify(data) to parse to your controller, convert that to a integer in the controller, then parse the string that was returned as:
var data = { objId: 1};
$.ajax({
url: '#Url.Action("PassIntFromView", "ControllerName")',//asp.net - url: 'api/controllerName/controllerFunction'
data: JSON.stringify(data),
type: "POST",
dataType: 'JSON',
contentType: "application/json",
success: function(data) {
var result = JSON.parse(data);
//do stuff with json result
},
error: function(passParams) {
console.log("Error is " + passParams);
}
});
Try this:
var data = { "objId": 1};
$.ajax({
url: '#Url.Action("PassIntFromView", "ControllerName")',
data: data,
type: "POST",
dataType: 'JSON',
contentType: "application/json",
success: function(data) {
//do stuff with json result
},
error: function(passParams) {
console.log("Error is " + passParams);
}
});
Your controller:
[HttpPost]
public JsonResult PassIntFromView(int objId)
{
//DO stuff with int here
}
Js
var data = { "objId": 1};
$.ajax({
url: "ControllerName/PassIntFromView",
data: data,
type: "POST",
dataType: 'JSON',
success: function(data.result!=null) {
console.log(data.result);
},
error: function(passParams) {
console.log("Error is " + passParams);
}
});
I got it working like this
let numberFour = JSON.stringify(4);
$.ajax({
.......
.......
data: numberFour,
type: "POST",
dataType: 'JSON',
contentType: "application/json",
......
........
});
I have been trying to post a file and some variables to my controller action using ajax, but I am getting null parameters for both of my variables.
Below is my ajax call
$("#btn-upload").on("click", function () {
var rows =$("[name='rows']").val();
var formData = new FormData($('#excel-upload-form')[0]);
var Data = formData+"&rows="+rows;
$.ajax({
url: '/MVC/UploadExcel/UploadExcel',
type: 'POST',
data: Data,
cache: false,
contentType: false,
processData: false,
success: function (result) {
if (result=='True') {
$(".alert-success").show();
}
else {
$(".alert-danger").show();
}
},
error: function (jqXHR, textStatus, errorThrown) {
$(".alert-danger").show();
},
});
});
and my controller action is
[HttpPost]
public bool UploadExcel(HttpPostedFileBase uploadedFile, int? rows)
{
var excelUtility = new ExcelUtilityService();
bool success=false;
if ((uploadedFile != null || uploadedFile.ContentLength > 0)&& rows !=null)
{
success = excelUtility.ProcessFile(uploadedFile, rows);
}
return success;
}
If I pass only the file parameter in my ajax call it works fine but when I try to do it with multiple parameters e.g 'rows' in my code, both of the parameters become null in my controller action while post.
In order to add values to a FormData object, you need to use .append().
Modify your script to
$("#btn-upload").on("click", function ()
var rows =$("[name='rows']").val();
var formData = new FormData($('#excel-upload-form')[0]);
formData.append('rows', rows); // modify
$.ajax({
url: '/MVC/UploadExcel/UploadExcel',
type: 'POST',
data: formData, // modify
cache: false,
contentType: false,
processData: false,
success: function (result) {
....
Using the script modification from Stephen:
$("#btn-upload").on("click", function ()
var rows =$("[name='rows']").val();
var formData = new FormData($('#excel-upload-form')[0]);
formData.append('rows', rows); // modify
$.ajax({
url: '/MVC/UploadExcel/UploadExcel',
type: 'POST',
data: formData, // modify
cache: false,
contentType: false,
processData: false,
success: function (result) {
....
If linking to parameters directly doesn't work with the formData.append() method above, I would recommend accessing them via:
Request["key-used-to-append"]
Example with your controller (rows variable assignment):
[HttpPost]
public bool UploadExcel(HttpPostedFileBase uploadedFile)
{
var excelUtility = new ExcelUtilityService();
var rows = Request["rows"];
bool success=false;
if ((uploadedFile != null || uploadedFile.ContentLength > 0)&& rows !=null)
{
success = excelUtility.ProcessFile(uploadedFile, rows);
}
return success;
}
I am using WAP API, but don't know how to use ajax connect into the aaa method. Please help. same the ajax method cannot match [FromBody]Guid[] Ids, but how
[Route("aaa")]
[HttpPost]
public IHttpActionResult aaa(Guid teamId, [FromBody]Guid[] Ids)
javascript
var routeIds = new Array();
routeIds.push('EEBEEEDF-41F2-4931-41F2-362DDDDDD06');
routeIds.push('EEBEEEDF-41F2-41F2-41F2-362DDDDDDD06');
routeIds.push('EEBEEEDF-41F2-41F2-41F2-362DDDDDDD06');
routeIds.push('EEBEEEDF-41F2-41F2-41F2-362DDDDDDD06');
var team = { id: "EEBEEEDF-41F2-41F2-41F2-362DDDDDDD06" };
var tmp = JSON.stringify({ teamId: "EEBEEEDF-41F2-41F2-41F2-362DDDDDDD06", '': routeIds });
var path = GlobalData.url + "api/Event/UpdateRouteEnrollments";
$http({
method: 'POST',
url: path,
contentType: "application/json; charset=utf-8",
dataType: "json",
data: JSON.stringify(tmp)
}).
success(function (data, status, headers, config) {
$scope.hide();
FeedStorage.save({ "id": data.TeamId, "Route": "0CE0F3C9-BB1E-4931-98F3-362DDE7BD406" });
$scope.setPlatform('team');
}).
error(function (data, status, headers, config) {
$scope.hide();
alert('An error occured:' + status);
});
I am really new to Javascript, Ajax and JSON. I have the following code:
$(document).ready(setInterval(function () {
$.ajax({
cache: false,
type: "GET",
url: '#Url.Action("GetBase64Image","Home")',
contentType: 'application/json',
datatype: "json",
success: function(data)
{
alert(data.imagefilename);
displayImage(data);
}
})
},5000));
[HttpGet]
public ActionResult GetBase64Image()
{
if (ImageIndex==ImageData.Length) ImageIndex=0;
string fname = Path.GetFileName(ImageFileNames[ImageIndex]);
return Json(new { base64image = ImageData[ImageIndex++], imagefilename=fname }
, JsonRequestBehavior.AllowGet);
}
}
I do see the GetBase64Image is being called every 5 seconds but the alert only displays the value from first call to the method. What am I doing wrong.
Thanks.