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AJAX Call passing null values to controller

I'm trying to send data to the controller using this AJAX call of type POST but it's sending null values to the controller. Through this code I want to make new records in the Microsoft Dynamics 365 CRM database.
var formdata = new FormData();
var rowCount = $(".newRow").length;
var projectarray = [];
var datearray = [];
var amountarray = [];
for (var i = 0; i < rowCount; i++) {
projectarray[i] = $("#ProjectType_" + i).val();
datearray[i] = $("#ClaimExpenseDate_" + i).val();
amountarray[i] = $("#Amount_" + i).val();
}
formdata.append("projectarray", projectarray);
formdata.append("datearray", datearray);
formdata.append("amountarray", amountarray);
$.ajax({
url: "#Url.Action("SetClaimDetails", "Claim")",
type: "POST",
data: formdata,
processData: false,
contenttype: false,
success: function (data) {
debugger;
window.location.href = "ess/claim";
alert("Submit Successful!");
},
error: function (err) {
window.location.href = "";
alert("Submit Failed!");
}
});
Here is my controller method which is storing null values instead of the values passed by the AJAX call. And because of this I'm not able to create new records in the database.
public ActionResult SetClaimDetails(string projectarray, string datearray, string amountarray)
{
try
{
Entity item = new Entity("bam_expenseclaims");
item["bam_expdate"] = Convert.ToDateTime(datearray);
item["bam_amount"] = amountarray;
item["bam_project"] = new EntityReference("new_project", Guid.Parse(projectarray));
globalService.Connection.Create(item);
}
catch (Exception ex)
{
XmlConfigurator.Configure();
ILog log = LogManager.GetLogger("TechnicalErrorAppender");
log.Error(string.Empty);
throw ex;
}
return View(Constant.CLAIMPATH);
}

Asp.net mvc dropdownlist cascading error Cannot set property 'value' of null

Hy.
I want to make dropdownlist cascadin. select dropdownlist and send editorfor.but
Cannot set property 'value' of null error .
I would like to send a value to editorfor a value of dropdownlist.
Can you help me?
public JsonResult GetPrice(string log)
{
int id = 1;
HomeController.sqlconnection con = new HomeController.sqlconnection();
string FIRMA = "select t.FIRMA,t.donem FROM dbo.TBLFRM as t where t.ID=" + id + "";
SqlCommand cmd = new SqlCommand(FIRMA, con.connect());
SqlDataReader rdrr = cmd.ExecuteReader();
rdrr.Read();
string firma = rdrr["FIRMA"].ToString();
string donem = rdrr["DONEM"].ToString();
ExtreModel item = new ExtreModel();
item.ItemList = new List<ExtreModel>();
string urun = "select P.PRICE from DBO.LG_" + firma + "_PRCLIST as p,DBO.LG_" + firma + "_ITEMS as I WHERE P.CARDREF=I.LOGICALREF AND P.CARDREF=" + log + "";
SqlCommand cmdd = new SqlCommand(urun, con.connect());
SqlDataReader rdr = cmdd.ExecuteReader();
rdr.Read();
string PRICE = rdr[0].ToString();
con.connect().Close();
return Json(PRICE, JsonRequestBehavior.AllowGet);
}
<script>
$("#LOGI").change(function () {
var select = $(this);
var cityname = select.val();
if (cityname != "") {
$.ajax({
method: "GET",
url: '/Mobil/GetPrice' + '?log=' + cityname,
beforeSend: function () {
}
}).done(function (result) {
document.getElementById("fyt").value = result.PRICE;
});
} else {
}
});
</script>

The problem seems coming from this return statement:
return Json(PRICE, JsonRequestBehavior.AllowGet);
This statement returns plain string value which doesn't contain PRICE property, so result.PRICE contains null value and causing null property assignment error message. If you want to return the price value, simply use this inside done function:
document.getElementById("fyt").value = result;
or in jQuery version:
$('#fyt').val(result);
But if you still want to return PRICE property, specify it inside JSON data:
return Json(new { PRICE = PRICE }, JsonRequestBehavior.AllowGet);
And the AJAX callback should be look like this:
$("#LOGI").change(function () {
var cityname = $(this).val();
if (cityname != "") {
$.ajax({
type: "GET",
url: '/Mobil/GetPrice',
data: { log: cityname }
}).done(function (result) {
$("#fyt").val(result.PRICE); // now the price property should exist
});
} else {
// do something else
}
});

DropDownList with java script

I hope developers can support me, I have minimal experience in the use of java script.
After investigating and several attempts, I was able to load a dropdownlist with data from a LINQ query and pass as a parameter the value of a textbox.
What I could not do is from the query Linq get two fields (Id and value) send them to the dropdownlist and show the value but after being able to use the Id of that field to be able to use it in a create, currently I can only show the value but I need the Id too.
View
#Html.TextBox("CP", "", new { #id = "txtCP", #onchange = "FillOption();", #placeholder = "Codigo Postal" })
#Html.DropDownList("Asentamientos", ViewBag.Drop as List<SelectListItem>)
Script
<script>
function FillOption() {
var CP = $('#txtCP').val();
$.ajax({
type: "Post",
url: "/Home/GetAsentamiento",
data: { CP: CP },
dataType: 'json',
success: function (data) {
$("#Asentamientos").empty();
for (var i = 0; i < data.length; i++) {
$('#Asentamientos').append('<option value=' + data[i].Value + '>' + data[i].Text + '</option > ');
}
}
});
}
</script>
Controllers
public ActionResult Index()
{
List<SelectListItem> drop = new List<SelectListItem>
{
};
ViewBag.Drop = drop;
return View();
}
[HttpPost]
public ActionResult GetAsentamiento(string CP)
{
var drop2 = (from p in db.CodigosPostales where p.CodigoPostal == CP select p.Asentamiento).ToList();
SelectList lista = new SelectList(drop2);
ViewBag.lista = lista;
return Json(ViewBag.lista);
}
I think of something like
[HttpPost]
public ActionResult GetAsentamiento(string CP)
{
var drop2 = (from p in db.CodigosPostales where p.CodigoPostal == CP select new { p.IdCodigoPostal,p.Asentamiento}).ToList();
SelectList lista = new SelectList(drop2);
ViewBag.lista = lista;
return Json(ViewBag.lista);
}
but I do not know how the id and the value would be handled
Thanks

If I understand your question correctly, I think you need to name the fields of the object you are creating with the Linq expression, so that it would look something like this:
[HttpPost]
public ActionResult GetAsentamiento(string CP)
{
var drop2 = (from p in db.CodigosPostales where p.CodigoPostal == CP select new { id = p.IdCodigoPostal, value = p.Asentamiento}).ToList();
SelectList lista = new SelectList(drop2);
ViewBag.lista = lista;
return Json(ViewBag.lista);
}
Here are a few examples: https://code.msdn.microsoft.com/LINQ-to-DataSets-09787825#SelectAnonymousTypes1
Then you could access those fields from you javascript with data[i].id and data[i].value.
I hope this helps.

I suspect your issue is around pulling the data from the API result. You're setting the a new property in the ViewBag, then returning the ViewBag property. This really shouldn't be required, and you should instead just return your list, list so (Note: and SelectItemList has a property called "Items" which contains all items you've added):
[HttpPost]
public ActionResult GetAsentamiento(string CP)
{
var drop2 = (from p in db.CodigosPostales where p.CodigoPostal == CP select new { p.IdCodigoPostal,p.Asentamiento}).ToList();
SelectList lista = new SelectList(drop2);
return Json(lista.Items);
}
This should return just a nice list of ListItems. You could also just change your jQuery to loop through the items property, like so:
<script>
function FillOption() {
var CP = $('#txtCP').val();
$.ajax({
type: "Post",
url: "/Home/GetAsentamiento",
data: { CP: CP },
dataType: 'json',
success: function (data) {
$("#Asentamientos").empty();
for (var i = 0; i < data.Items.length; i++) {
$('#Asentamientos').append('<option value=' + data.Items[i].Value + '>' + data.Items[i].Text + '</option > ');
}
}
});
}
</script>

Thanks to all, the code works as follows
Controller
[HttpPost]
public ActionResult GetAsentamiento(string CP)
{
var drop2 = (from p in db.CodigosPostales where p.CodigoPostal == CP select new { Value = p.IdCodigoPostal, Text= p.Asentamiento }).ToList();
SelectList lista = new SelectList(drop2);
return Json(lista.Items);
}
Script
<script>
function FillOption() {
var CP = $('#txtCP').val();
$.ajax({
type: "Post",
url: "/Home/GetAsentamiento",
data: { CP: CP },
dataType: 'json',
success: function (data) {
$("#Asentamientos").empty();
for (var i = 0; i < data.length; i++) {
$('#Asentamientos').append('<option value=' + data[i].Value + '>' + data[i].Text + '</option > ');
}
}
});
}

Ajax call always fires error function call

I am looking to post the data using an ajax call from MVC to Post API. The data is successfully posted, but the ajax call always fires the error function alert.
View Page
<div class="input-group">
#Html.TextBoxFor(m => m.ConfirmVisitID, new { Class = "form-control input-circle-right", #readonly = "readonly", #id = "Cvid" })
</div>
//all the input fields comes here
<input value="Confirm" type="button" id="loccat" onclick="CheckPromotionalCode();">
Script
<script>
function CheckPromotionalCode() {
var jva = document.getElementById('Mid').value;
var cid = document.getElementById('Cvid').value;
var pname = document.getElementById('PatientName').value;
var datefrom = document.getElementById('SDate').value;
var dateend = document.getElementById('EDate').value;
var mc = document.getElementById('IsMC').value;
var dept = document.getElementById('IsDepartment').value;
var empl = document.getElementById('IsEmployee').value;
var depen = document.getElementById('IsDependent').value;
var res = document.getElementById('reason').value;
var remark = document.getElementById('rem').value;
$.ajax({
url: 'http://localhost:89522/Mc/McIssued',
data: JSON.stringify({ Mid: jva, Cvid: cid, PatientName: pname, SDate: datefrom, EDate: dateend, IsMC: mc, IsDepartment: dept, IsEmployee: empl, IsDependent: depen, reason: res, rem: remark }),
method: 'post',
dataType: 'json',
contentType: 'application/json;charset=utf-8',
success: function (response) {
alert("Successfull");
window.location.href = response.Url;
},
error: function () {
alert("Not Successfull");
}
});
}
Controller
public ActionResult McIssued(string Cvid, string Mid, string SDate, string EDate, string reason, string rem, string IsMC, string IsDepartment, string IsEmployee, string IsDependent, string PatientName)
{
string url = "http://localhost:74523";
System.Net.Http.HttpClient client = new System.Net.Http.HttpClient();
client.BaseAddress = new Uri(url);
client.DefaultRequestHeaders.Accept.Clear();
McIssued mc = new McIssued()
{
MemberID = Mid,
ConfirmVisitID = Cvid,
ProviderID = PID,
CreateUserID = UserId,
StartDate = StrtDate,
EndDate = EndDate,
McType = reason,
Remarks = rem,
RecStatus = Rec,
ModifyUserID = ModifyUserId
};
HttpResponseMessage response = client.PostAsJsonAsync<McIssued>("api/Mc/InsertintoMcTxn", mc).Result;
System.Diagnostics.Debug.WriteLine(response);
response.ToString();
response.EnsureSuccessStatusCode();
var redirectUrl = new UrlHelper(Request.RequestContext).Action("IssueMC", "Mc");
return Json(new { Url = redirectUrl });
}
So, how can I overcome this issue? Any help would be appreciated. Thanks in advance

Binding Kendo Data Source with Async $.ajax calling from C# MVC Controller Action

This is my action in controller. Which return a List> converting into DataSourceResult.and also Serializing into Json.
[HttpPost]
public ActionResult GetMissingShiftData([DataSourceRequest]DataSourceRequest request)
{
DataTable dtResponse = new DataTable();
var dynamicList = new List<dynamic>();
var myMainList = new List<List<dynamic>>();
List<DataSourceResult> viewResultList = new List<DataSourceResult>();
string RigNumber = string.IsNullOrWhiteSpace( resultData.Filter.SelectedRig.RigNumber) || resultData.Filter.SelectedRig.RigNumber == "ALL" ? "" : resultData.Filter.SelectedRig.RigNumber;
DataSet response = MissingShiftsReportData.GetData(Convert.ToDateTime(resultData.Filter.DateStart), Convert.ToDateTime(resultData.Filter.DateEnd), ConnString, RigNumber);
foreach (DataTable dt in response.Tables)
{
dtResponse = dt;
string[] columnNames = dtResponse.Columns.Cast<DataColumn>().Select(x => x.ColumnName).ToArray();
foreach (DataRow dr in dtResponse.Rows)
{
dynamic myObj = new ExpandoObject();
var p = myObj as IDictionary<string, object>;
Regex rgx = new Regex("[^a-zA-Z0-9]");
for (int i = 0; i < columnNames.Length; i++)
{
string name = dr.Table.Columns[i].ColumnName.Replace(" ", String.Empty);
name = name.Replace(".", String.Empty);
name = name.Replace("(", String.Empty);
name = name.Replace(")", String.Empty);
name = rgx.Replace(name, "");
p[name] = dr[i];
}
dynamicList.Add(p);
}
myMainList.Add(dynamicList);
}
DataSourceResult viewResult = myMainList.ToDataSourceResult(request);
string JsonViewData = JsonConvert.SerializeObject(viewResult.Data);
return new ContentResult { Content = JsonViewData, ContentType = "application/json", ContentEncoding = Encoding.UTF8 };
}
And this is the async call I am doing with Jqery.while I am trying to bind a data source it shows "data[0].Data" is "undefined". How can I make use of 'data'.
$.ajax({
url: "GetMissingShiftData",
type: "post",
datatype: 'json',
success: function (data) {
var list = data[0].Data;
var dataSource = new kendo.data.DataSource({
data: data[0].Data
});
dataSource.read();
return false;
},
error: function (msg) {
toastr.error("Error: " + msg.statusText);
}
});

You are serializing an array (the Data property) and don't need to use the Data field at the client-side:
$.ajax({
url: "GetMissingShiftData",
type: "post",
datatype: 'json',
success: function (data) {
var dataSource = new kendo.data.DataSource({
data: data
});
dataSource.read();
return false;
},
error: function (msg) {
toastr.error("Error: " + msg.statusText);
}
});