I keep getting a property set to null when I try to deserialize json which contains a toString name for a property
{
"field": "status",
"fieldtype": "jira",
"from": "10000",
"fromString": "Impeded",
"to": "10006",
"toString": "Review"
}
I tried with and without the following JsonProperty
public class ChangelogItem
{
public string field { get; set; }
public string fieldtype { get; set; }
public string from { get; set; }
public string fromString { get; set; }
public string to { get; set; }
//[JsonProperty(PropertyName = "toString")]
//public string newString { get; set; }
public string toString { get; set; }
}
but I keep getting a null value.
Any idea?
The following works fine for me with Json.Net v6.0.3:
public class ChangelogItem
{
public string field { get; set; }
public string fieldtype { get; set; }
public string from { get; set; }
public string fromString { get; set; }
public string to { get; set; }
public string toString { get; set; }
}
Test program:
class Program
{
static void Main(string[] args)
{
string json = #"
{
""field"": ""status"",
""fieldtype"": ""jira"",
""from"": ""10000"",
""fromString"": ""Impeded"",
""to"": ""10006"",
""toString"": ""Review""
}";
ChangelogItem item = JsonConvert.DeserializeObject<ChangelogItem>(json);
Console.WriteLine(item.toString);
}
}
Output:
Review
Related
I am trying to create a small asmx service with a method which will return some dummy data. I get the following error when I run the service:
"System.InvalidOperationException: System.Xml.XmlAttribute cannot be used as: 'xml element'."
My web method is as follows:
[WebMethod]
public SubmitCaseRequestResponse1 SubmitCaseRequest(SubmitCaseRequestRequest1 request)
{
var response = new SubmitCaseRequestResponse1
{
ResponseID = "456325898",
Success = true,
ValidationErrors = null
};
return response;
}
My SubmitCaseRequestResponse1 class:
public class SubmitCaseRequestResponse1
{
public string ResponseId { get; set; }
public bool Success { get; set; }
public ValidationError[] ValidationErrors { get; set; }
}
and the request class is :
public class SubmitCaseRequestRequest1
{
public AuthHeader AuthHeader { get; set; }
public SubmitCaseRequestRequest PostCaseDateRequest { get; set; }
}
I was supposed to serialize the complex type SubmitCaseRequestRequest1 and SubmitCaseRequestResponse1 . Needed to add [XmlElement] for the complex types and [XmlAttribute] for simple types
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://tempuri.org/")]
[Serializable]
public class SubmitCaseRequestRequest1
{
[XmlElement]
public AuthHeader AuthHeader { get; set; }
[XmlElement]
public SubmitCaseRequestRequest PostCaseDateRequest { get; set; }
}
[Serializable]
public class SubmitCaseRequestRequest
{
[XmlElement]
public Guid? RequestId { get; set; }
[XmlAttribute]
public string LCICourtNumber { get; set; }
[XmlAttribute]
public string CaseNumber { get; set; }
[XmlAttribute]
public string DebtorLastName { get; set; }
[XmlAttribute]
public string DateType { get; set; }
}
I am getting response in json like this
data={"Id": "234", "Name": "pinky", "MobileNumber": "", "ClassName": "Class1_Physics", "DOBTime": "1990-04-11 15:46:38", "Landline": "", "Status": "Unmarried"}
I want to deserilize json and insert into table.
I have created 2 classes for it and using dll of Newtonsoft for deserilization.
public class JsonResult
{
public string Id { get; set; }
public string Name { get; set; }
public string MobileNumber { get; set; }
public string ClassName { get; set; }
public string DOBTime { get; set; }
public string Landline { get; set; }
public string Status { get; set; }
}
public class JsonResultRoot
{
[JsonProperty(PropertyName = "data")]
public string Data { get; set; }
public JsonResult JsonResult
{
get { return JsonConvert.DeserializeObject<JsonResult>(Data); }
}
}
Code :
decodedUrl : store actual json data/string
var JsonData = JsonConvert.DeserializeObject(decodedUrl).JsonResult;
If your JSON contains this data= part, then it is invalid JSON. You cannot deserialize it using JSON.NET library.
In order to deserialize this, you can simply clean this part out:
public class JsonResult
{
public string Id { get; set; }
public string Name { get; set; }
public string MobileNumber { get; set; }
public string ClassName { get; set; }
public string DOBTime { get; set; }
public string Landline { get; set; }
public string Status { get; set; }
}
// Usage:
jsonString = jsonString.Replace("data=").Trim();
var jsonObject = JsonConvert.DeserializeObject<JsonResult>(jsonString);
Of course, in general it looks bad. You should only do it if "you are getting response in json like this" and you can do nothing about it.
If there is any possibility to make incoming format correct, then better do it.
I have to post this javascript object to asp.net controller:
The model in server side is:
public class UserExperience
{
public class competences
{
public string id { get; set; }
public string level { get; set; }
public string name { get; set; }
public bool isNew { get; set; }
public bool isSaved { get; set; }
}
public long id { get; set; }
public string startDate { get; set; }
public string endDate { get; set; }
public string projectName { get; set; }
public string company { get; set; }
public string customerIndustry { get; set; }
public string jobTitle { get; set; }
public string projectDescription { get; set; }
public string responsabilities { get; set; }
public List<competences> competence { get; set; }
public List<int> deletedCompetences { get; set; }
public bool isNew { get; set; }
public bool isSaved { get; set; }
}
I tried to send the json like this:
$.ajax("/candidate/saveUserExperience", {
data : JSON.stringify({ue: is.Candidate.BO.userExperience[id]}),
//dataType: "text",
contentType : "application/json",
type : 'POST'
})
And this is the controller where I receive it:
public JsonResult saveUserExperience(UserExperience ue)
{
bool success;
success = true;
return Json(new { success, ue }, JsonRequestBehavior.AllowGet);
}
And I receive a null object.
I tried to do with:
UserExperience userExperience = new JavaScriptSerializer().Deserialize<UserExperience>(ue);
and I do not receive the competence subclass object.
Is there a solution to this problem ?
Thanks.
Why are you trying to pass is.Candidate.BO.userExperience[id] when you expect UserExperience object? Just write data: ue in ajax call parameters,
I've been reading through lots of articles trying to learn MVC4, but I'm stumped as to why my entity is not getting updated to database.
I've been trying to modify the MVC4 VS2012 Internet template.
So, here's the Controller action:
[HttpPost, ActionName("Approve")]
[Authorize]
public ActionResult ApproveConfirmed(long id)
{
using (StudentiContext context = new StudentiContext())
{
// context.Configuration.AutoDetectChangesEnabled = false;
var studente = (from d in context.STUDENTI_STRANIERI_MASTER_REG
where d.ID_PERSONA == id
select d).Single();
STUDENTI_STRANIERI_MASTER_REG st2 = studente;
st2.ESITO = 1;
//studente.ESITO = 1;
var statos = context.Entry(studente).State;
Console.WriteLine("Before DetectChanges: {0}",statos);
//context.ChangeTracker.DetectChanges();
context.Entry(studente).State = EntityState.Modified;
context.Entry(studente).CurrentValues.SetValues(st2);
// var tracked = context.ChangeTracker.Entries();
context.Entry(studente).Property( o => o.ESITO ).IsModified = true;
TryUpdateModel(studente);
context.SaveChanges();
Console.WriteLine("After DetectChanges: {0}",statos);
return RedirectToAction("PrivateIndex");
}
}
The aim is just to update one property, ESITO and set it to 1. Currently its value is 2.
This is the model:
namespace MvcStudenti2.Models
{
using System;
using System.Collections.Generic;
public partial class STUDENTI_STRANIERI_MASTER_REG
{
public long ID_PERSONA { get; set; }
public string COGNOME { get; set; }
public string NOME { get; set; }
public string SESSO { get; set; }
public System.DateTime DATA_NASCITA { get; set; }
public long ID_STATO_NASCITA { get; set; }
public string LUOGO_NASCITA_ESTERO { get; set; }
public string CODICE_FISCALE { get; set; }
public string TITOLO_POSSEDUTO { get; set; }
public Nullable<short> DURATA_TITOLO { get; set; }
public string VOTAZIONE { get; set; }
public string UNI_PROVENIENZA { get; set; }
public long ID_STATO_UNI { get; set; }
public string CERT_LINGUISTICA { get; set; }
public string CERT_PUNTEGGIO { get; set; }
public string NOTE { get; set; }
public System.DateTime DATA_RICHIESTA { get; set; }
public short ESITO { get; set; }
public string CDS_COD { get; set; }
public string EMAIL { get; set; }
public string NUMERO_TELEFONO { get; set; }
public string INDIRIZZO { get; set; }
public string CAP_INDIRIZZO { get; set; }
public string CITTA { get; set; }
public long ID_STATO_INDIRIZZO { get; set; }
public string DESCRIZIONE_CIT_NAZ { get; set; }
public Nullable<System.DateTime> DATA_COMPLETAMENTO_ATTESO { get; set; }
public Nullable<System.DateTime> ANNO_COMPLETAMENTO { get; set; }
public Nullable<short> DURATA_CORSO_COMPLETATO { get; set; }
public decimal GPA { get; set; }
public string ALTRI_TITOLI { get; set; }
public string MADRELINGUA { get; set; }
public Nullable<short> CERT_TOEFL_PUNT { get; set; }
public string CERT_FIRSTCERT_GRADE { get; set; }
public Nullable<short> CERT_FIRSTCERT_PUNT { get; set; }
public byte[] FILE_CV { get; set; }
public byte[] FILE_CARRIERA { get; set; }
public byte[] FILE_CERT_LINGUA { get; set; }
public byte[] FILE_DOC_IDENTITA { get; set; }
public string PWD { get; set; }
public string FILE_CV_NOME { get; set; }
public string FILE_CARRIERA_NOME { get; set; }
public string FILE_CERT_LINGUA_NOME { get; set; }
public string FILE_DOC_IDENTITA_NOME { get; set; }
public string FILE_CV_TIPO { get; set; }
public string FILE_CARRIERA_TIPO { get; set; }
public string FILE_CERT_LINGUA_TIPO { get; set; }
public string FILE_DOC_IDENTITA_TIPO { get; set; }
public Nullable<short> STATO { get; set; }
public Nullable<short> VALUTATO { get; set; }
public Nullable<short> ARCHIVIATO { get; set; }
public string CDS_COD_2 { get; set; }
public Nullable<short> MAIL_INVIATA { get; set; }
public string LINK_ULTIMO_CORSO { get; set; }
public Nullable<short> ATTIVO { get; set; }
public byte[] FILE_LETTERA_ACCETTAZIONE { get; set; }
public string FILE_LETTERA_ACCETTAZIONE_NOME { get; set; }
public string FILE_LETTERA_ACCETTAZIONE_TIPO { get; set; }
}
}
Everywhere I read I find that SaveChanges() should be enough, possibly after the EntityState.Modified.
I can correctly edit the entity, if I pass the whole entity to the Action, but in this case the Approve view is a built on a Detail template, so I don't have anything to POST from it (and I'd prefer not to: I could insert a hidden field and post just that, but I'm trying to update a single filed from code, and I'm not sure if the whole entity would get updated or overwritten ).
statos goes to "modified", if I understand correctly, because I have done a query on the entity.
Another thing I don't understand is why ESITO gets update -also- in studente, but then reverts to "2" after SaveChanges().
Are property changes being detected? I've wrapped every Action in a using block, as suggested elsewhere, so not to have multiple contextx/instances around.
Could anyone please point me to what I'm doing wrong? The code above is probably over-redundant, but I've been trying everything I have found on SO.
Thanks, everyone.
The following is all that is required to change the ESITO property.
[HttpPost, ActionName("Approve")]
[Authorize]
public ActionResult ApproveConfirmed(long id)
{
using (StudentiContext context = new StudentiContext())
{
// context.Configuration.AutoDetectChangesEnabled = false;
var studente = (from d in context.STUDENTI_STRANIERI_MASTER_REG
where d.ID_PERSONA == id
select d).Single();
studente.ESITO = 1;
context.SaveChanges();
return RedirectToAction("PrivateIndex");
}
}
I got null value for byte array in json web service when deserializing.but it returns byte array when invoked from browser.
C# Code:
var url = re.DownloadString("XXXX/ListService.svc/lstFooddtl/1/21");
var a = JsonConvert.DeserializeObject<FooddtlResult>(url);
In a i got null for food_photo...when i deserialize...
c# Class:
public class photo
{
public byte[] food_photo { get; set; }
}
public class Food
{
public int food_id { get; set; }
public string food_name { get; set; }
public photo[] food_photo { get; set; }
public string unitcost { get; set; }
}
public class FooddtlResult
{
public Food[] Result { get; set; }
}
{"Result":[{"food_id":"61","food_name":"Idli","food_photo":[255,216,255,224,0,....217],"unitcost":null}]}
Your model does not match the JSON. For correct deserialization change your Food class to
public class Food
{
public int food_id { get; set; }
public string food_name { get; set; }
public byte[] food_photo { get; set; }
public string unitcost { get; set; }
}
and remove the photo class.
Otherwise, if you want to keep the model structure, then correct JSON should be:
{"Result":[{"food_id":"61","food_name":"Idli","food_photo":[{"food_photo":[255,216,255,224,0,....217]},{"food_photo":[255,...]},...],"unitcost":null}]}