How to deserialize from JSON file with multiple objects - c#

So I have this JSON file. I want to get the data out of it in C#.
{
"Server": [
{
"Name": "Server1",
"AvgTemp": 36,
"CurTemp": 50.3,
"MaxTemp": 41,
"MinTemp": 37
},
{
"Name": "Server2",
"AvgTemp": 36,
"CurTemp": 50.3,
"MaxTemp": 41,
"MinTemp": 41
},
{
"Name": "Server3",
"AvgTemp": 36,
"CurTemp": 50.3,
"MaxTemp": 41,
"MinTemp": 36
},
{
"Name": "Server4",
"AvgTemp": 36,
"CurTemp": 50.3,
"MaxTemp": 41,
"MinTemp": 41.3
}
]
}
I already tried this:
public ReadJson()
{
//prevents the threads to block each other while accessing the json file
using (var file = new FileStream("E:\\Programming\\Timmermann00\\Betrieblicher_Auftrag\\JSON\\Values.json", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (StreamReader r = new StreamReader(file))
{
string json = r.ReadToEnd();
//Testing
List<Values> values = JsonConvert.DeserializeObject<List<Values>>(json);
}
}
public class Values : INotifyPropertyChanged
{
public Values()
{
}
string Name { get; set; }
string avgTemp;
public string AvgTemp { get => avgTemp; set
{
if(avgTemp!= value)
{
avgTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(AvgTemp)));
}
}
}
string maxTemp;
public string MaxTemp { get => maxTemp; set
{
if(maxTemp != value)
{
maxTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MaxTemp)));
}
}
}
string minTemp;
public string MinTemp
{
get => minTemp; set
{
if (minTemp != value)
{
minTemp= value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MinTemp)));
}
}
}
string curTemp;
public string CurTemp
{
get => curTemp; set
{
if (curTemp != value)
{
curTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(CurTemp)));
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
}
I get an error that says that my JSON file doesn't have any arrays in it so it can't convert into a List. Error message:
Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.List`1[Betrieblicher_Auftrag.Values]' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
What is wrong?

You need a Root class for the deserialization.
public class Root
{
public List<Value> Server { get; set; }
}
And deserialize as Root instance.
Root root = JsonConvert.DeserializeObject<Root>(json);
List<Values> values = root.Server;

Working code.
can you try with this.
public ReadJson()
{
//prevents the threads to block each other while accessing the json file
using (var file = new FileStream("E:\\Programming\\Timmermann00\\Betrieblicher_Auftrag\\JSON\\Values.json", FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (StreamReader r = new StreamReader(file))
{
string json = r.ReadToEnd();
//Testing
var servers = JsonConvert.DeserializeObject<Server>(json);
List<Values> values = server.Server;
}
}
}
public List<Values> Server {get; set;}
public class Values:INotifyPropertyChanged
{
public Values()
{
}
string Name { get; set; }
string avgTemp;
public string AvgTemp { get => avgTemp; set
{
if(avgTemp!= value)
{
avgTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(AvgTemp)));
}
}
}
string maxTemp;
public string MaxTemp { get => maxTemp; set
{
if(maxTemp != value)
{
maxTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MaxTemp)));
}
}
}
string minTemp;
public string MinTemp
{
get => minTemp; set
{
if (minTemp != value)
{
minTemp= value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MinTemp)));
}
}
}
string curTemp;
public string CurTemp
{
get => curTemp; set
{
if (curTemp != value)
{
curTemp = value;
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(CurTemp)));
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
}

Related

How to get JSON from api in listview labels in Xamarin C#

I have the following code that retrieves json from an api. This works because when I put a breakpoint on it, it neatly shows the json from the url.
The json looks like this when I put a breakpoint on it
And the code of getting the json from the url looks like this
public static List GetAllSpecTypes(string acces_Token, string domain, out bool result)
{
result = true;
var specTypes = new List<Specification>();
if (!string.IsNullOrEmpty(domain))
{
try
{
using (HttpClient client = new HttpClient())
{
string url = $"{domain}/api/specification/GetSpecificationType";
client.BaseAddress = new Uri(url);
MediaTypeWithQualityHeaderValue contentType = new MediaTypeWithQualityHeaderValue("application/json");
client.DefaultRequestHeaders.Accept.Add(contentType);
client.DefaultRequestHeaders.Add("cache-control", "no-cache");
client.DefaultRequestHeaders.Add("Authorization", acces_Token);
HttpResponseMessage response = client.GetAsync(url).Result;
if (response.IsSuccessStatusCode)
{
string json = response.Content.ReadAsStringAsync().Result;
specTypes = JsonSerializer.Deserialize<List<Specification>>(json);
}
else
{
result = false;
}
}
}
catch (Exception)
{
//log!
}
}
return specTypes;
}
And the json from the breakpoint is this:
"[{\"SpecificationTypeId\":1,\"SpecificationTypeName\":\"Overig\"},{\"SpecificationTypeId\":2,\"SpecificationTypeName\":\"Eten/Drinken\"},{\"SpecificationTypeId\":3,\"SpecificationTypeName\":\"Parkeren\"},{\"SpecificationTypeId\":4,\"SpecificationTypeName\":\"Ander vervoer\"},{\"SpecificationTypeId\":5,\"SpecificationTypeName\":\"Materiaal\"},{\"SpecificationTypeId\":6,\"SpecificationTypeName\":\"Persoonlijke uitgaven\"},{\"SpecificationTypeId\":7,\"SpecificationTypeName\":\"Uitgaven cliƫnt\"},{\"SpecificationTypeId\":8,\"SpecificationTypeName\":\"Overnachting\"},{\"SpecificationTypeId\":9,\"SpecificationTypeName\":\"Congres / beursbezoek\"},{\"SpecificationTypeId\":10,\"SpecificationTypeName\":\"Brandstof\"},{\"SpecificationTypeId\":11,\"SpecificationTypeName\":\"Auto kosten\"},{\"SpecificationTypeId\":12,\"SpecificationTypeName\":\"Eigen vervoer\"},{\"SpecificationTypeId\":14,\"SpecificationTypeName\":\"Vervoer\"}]"
This method should return the specTypes to a viewmodel. But when I do, it's empty when I put a breakpoint on it.
That code is as follows
public ViewModel()
{
this.Source = new List<SourceItem>();
var data = Api.GetAllSpecTypes(Settings.AccessToken, Settings.Domain, out var valid);
foreach (var item in data)
{
Source.Add(new SourceItem(item.SpecificationName, item.SpecificationId));
}
}
What I want to achieve is that here that json is returned from the api call so that I can bind it to a label in a listview.
The listview xaml looks like this in which I put in the label where I use the following:
<Label
FontSize="18"
LineBreakMode="NoWrap"
Text="{Binding Name}"
TextColor="#474747"
VerticalOptions="FillAndExpand" />
What should be in the label are the specificationnames coming from the json
How can i achieve this?
This is my entire viewmodel according to my question
public class SourceItem : INotifyPropertyChanged
{
public SourceItem(string name, int id)
{
this.Name = name;
this.Id = id;
}
private string name;
public string Name
{
get { return this.name; }
set
{
this.name = value;
this.OnPropertyChanged("Name");
}
}
private int id;
public int Id
{
get { return this.id; }
set
{
this.id = value;
this.OnPropertyChanged("Id");
}
}
private bool isSelected;
public bool IsSelected
{
get { return this.isSelected; }
set
{
this.isSelected = value;
this.OnPropertyChanged("IsSelected");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyname)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyname));
}
}
public class ViewModel : INotifyPropertyChanged
{
private bool _isSelected = false;
public bool IsSelected
{
get => _isSelected;
set
{
if (_isSelected != value)
{
_isSelected = value;
OnPropertyChanged();
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string name = null)
{
if (PropertyChanged != null)
this.PropertyChanged(this, new PropertyChangedEventArgs(name));
}
public ViewModel()
{
this.Source = new List<SourceItem>();
var data = Api.GetAllSpecTypes(Settings.AccessToken, Settings.Domain, out var valid);
foreach (var item in data)
{
Source.Add(new SourceItem(item.SpecificationName, item.SpecificationId));
}
}
public List<SourceItem> Source { get; set; }
}
And the Specification Class for the JSON is the following:
public class Specification
{
public int SpecificationId { get; set; }
public string SpecificationName { get; set; }
public string SpecificationDescription { get; set; }
}
How do I get the specification names from the json in the xaml label based on my question?
thanks in advance
your json looks like
"[{\"SpecificationTypeId\":1,\"SpecificationTypeName\"
while your C# classes do not include the "Type" in the name
public class Specification
{
public int SpecificationId { get; set; }
public string SpecificationName { get; set; }
public string SpecificationDescription { get; set; }
}
you either need to rename your C# properties to match the json, or use an attribute to map the name
[JsonProperty("SpecificationTypeId")]
public int SpecificationId { get; set; }

JSON value is sometimes a string and sometimes an object

I have some JSON that can come in two different formats. Sometimes the location value is a string, and sometimes it is an object. This is a sample of the first format:
{
"result": [
{
"upon_approval": "Proceed to Next Task",
"location": "",
"expected_start": ""
}
]
}
Class definitions for this:
public class Result
{
public string upon_approval { get; set; }
public string location { get; set; }
public string expected_start { get; set; }
}
public class RootObject
{
public List<Result> result { get; set; }
}
Here is the JSON in the second format:
{
"result": [
{
"upon_approval": "Proceed to Next Task",
"location": {
"display_value": "Corp-HQR",
"link": "https://satellite.service-now.com/api/now/table/cmn_location/4a2cf91b13f2de00322dd4a76144b090"
},
"expected_start": ""
}
]
}
Class definitions for this:
public class Location
{
public string display_value { get; set; }
public string link { get; set; }
}
public class Result
{
public string upon_approval { get; set; }
public Location location { get; set; }
public string expected_start { get; set; }
}
public class RootObject
{
public List<Result> result { get; set; }
}
When deserializing, I get errors when the JSON format does not match my classes, but I don't know ahead of time which classes to use because the JSON format changes. So how can I dynamically get these two JSON formats to deserialize into one set of classes?
This is how I am deserializing now:
JavaScriptSerializer ser = new JavaScriptSerializer();
ser.MaxJsonLength = 2147483647;
RootObject ro = ser.Deserialize<RootObject>(responseValue);
To solve this problem you'll need to make a custom JavaScriptConverter class and register it with the serializer. The serializer will load the result data into a Dictionary<string, object>, then hand off to the converter, where you can inspect the contents and convert it into a usable object. In short, this will allow you to use your second set of classes for both JSON formats.
Here is the code for the converter:
class ResultConverter : JavaScriptConverter
{
public override IEnumerable<Type> SupportedTypes
{
get { return new List<Type> { typeof(Result) }; }
}
public override object Deserialize(IDictionary<string, object> dict, Type type, JavaScriptSerializer serializer)
{
Result result = new Result();
result.upon_approval = GetValue<string>(dict, "upon_approval");
var locDict = GetValue<IDictionary<string, object>>(dict, "location");
if (locDict != null)
{
Location loc = new Location();
loc.display_value = GetValue<string>(locDict, "display_value");
loc.link = GetValue<string>(locDict, "link");
result.location = loc;
}
result.expected_start = GetValue<string>(dict, "expected_start");
return result;
}
private T GetValue<T>(IDictionary<string, object> dict, string key)
{
object value = null;
dict.TryGetValue(key, out value);
return value != null && typeof(T).IsAssignableFrom(value.GetType()) ? (T)value : default(T);
}
public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
{
throw new NotImplementedException();
}
}
Then use it like this:
var ser = new JavaScriptSerializer();
ser.MaxJsonLength = 2147483647;
ser.RegisterConverters(new List<JavaScriptConverter> { new ResultConverter() });
RootObject ro = serializer.Deserialize<RootObject>(responseValue);
Here is a short demo:
class Program
{
static void Main(string[] args)
{
string json = #"
{
""result"": [
{
""upon_approval"": ""Proceed to Next Task"",
""location"": {
""display_value"": ""Corp-HQR"",
""link"": ""https://satellite.service-now.com/api/now/table/cmn_location/4a2cf91b13f2de00322dd4a76144b090""
},
""expected_start"": """"
}
]
}";
DeserializeAndDump(json);
Console.WriteLine(new string('-', 40));
json = #"
{
""result"": [
{
""upon_approval"": ""Proceed to Next Task"",
""location"": """",
""expected_start"": """"
}
]
}";
DeserializeAndDump(json);
}
private static void DeserializeAndDump(string json)
{
var serializer = new JavaScriptSerializer();
serializer.RegisterConverters(new List<JavaScriptConverter> { new ResultConverter() });
RootObject obj = serializer.Deserialize<RootObject>(json);
foreach (var result in obj.result)
{
Console.WriteLine("upon_approval: " + result.upon_approval);
if (result.location != null)
{
Console.WriteLine("location display_value: " + result.location.display_value);
Console.WriteLine("location link: " + result.location.link);
}
else
Console.WriteLine("(no location)");
}
}
}
public class RootObject
{
public List<Result> result { get; set; }
}
public class Result
{
public string upon_approval { get; set; }
public Location location { get; set; }
public string expected_start { get; set; }
}
public class Location
{
public string display_value { get; set; }
public string link { get; set; }
}
Output:
upon_approval: Proceed to Next Task
location display_value: Corp-HQR
location link: https://satellite.service-now.com/api/now/table/cmn_location/4a2cf91b13f2de00322dd4a76144b090
----------------------------------------
upon_approval: Proceed to Next Task
(no location)

Json deserialize not working in C# window 2012 servers

I am trying to deserialize the json string from Rest webserive in C#. Following is jsonstring and classes I used. But after deserialize it is giving null/empty value on server.But in local its working as expected. So what's going wrong with me?
Json String
{
"error": false,
"parameters": [
{
"Programs": "ZZ_UNUSED_EU-01pp-Q669;EU-PPP-O003;ZZ_UNUSED_EU-PPP-CO05;100000;pbse;EU-m110-2007;EU-zz33-L053;EU-zz21-z084;ZZ_UNUSED_EU-01pp-Q875;EU-zz05-L029;ZZ_UNUSED_EU-RAD-003;ZZ_UNUSED_EU-RAD-004;ZZ_UNUSED_EU-RAD-007;ZZ_UNUSED_EU-RAD-012;ZZ_UNUSED_EU-RAD-015;ZZ_UNUSED_EU-zz22-RF21;ZZ_UNUSED_EU-PPP-CO130;ZZ_UNUSED_EU-01pp-Q962;ZZ_UNUSED_EU-01pp-Q963;EU-LandR-COM;EU-01pp-O960;EU-SI-HP-INTL;G_PC_SQ;G_Survey_Inv_TPE-FY11;G_MADO_3Com;G_eLocator_AIS;G_eLocator_ATP;G_eLocator_SCE;G_eLocator_TECI;G_L&R_SCREENED;G_L&R_CASE_OPEN;EU-MDF-Tool;EU-DI-SPT-FLASHPRO;EU-DI-SPT-FLASHPRO-FY11;EU-DI-SPT-FLASHPRO-FY12;G_SPT_PCLM_Prospect;G_SPT_PCLM_Enrolled;SPEC_P1_S1_GOLD_PPS_CAN;G_SPT_Joint_Business_Planning;EU_RET_CE_SCOPE;G_PARTNER_HPQ;ZZ_UNUSED_EU-01pp-O972;SPEC_P1_SERV_SILV_CAN;SPEC_P1_STOR_SILV_CAN;SPEC_P1_NW_SILV_CAN;SPEC_P1_S1_SILV_CAN;PM_P1_PLAT_PART_CAN;PM_P1_SILV_PART_PPS_SM_CAN;SPEC_P1_WK_GOLD_CAN;ZZ_UNUSED_EU-01pp-Q018;"
},
{
"PartnerSubTypes": "G_Tgt_Commercial_T2_Reseller_S;SSP;Supplies Commercial;"
},
{
"CompanyNumber": "29682"
},
{
"PartnerNameHQ": "151070026"
},
{
"SiteIdentifier": "UPP"
},
{
"LastName": "Isaksson"
},
{
"HPInternalUser": "F"
},
{
"PhysAdLine1": "?STRA HAMNEN 1"
},
{
"HPPUserId": "989d35449261b4348e2f477260b1eacc"
},
{
"PartnerName": "Misco AB"
},
{
"PhysAdLine2": ""
},
{
"PhysAdLine3": ""
},
{
"PrimaryChannelSegment": "TDL"
},
{
"HPOrg": "HP Sweden"
},
{
"LastLoginDate": "1426841482160"
},
{
"PartnerPhone": ""
},
{
"PartnerLegalName": "Misco AB"
},
{
"HPOrgs": "Default Organization;HP Sweden;"
},
{
"FirstName": "Joakim"
},
{
"CountryCode": "SE"
},
{
"PreferredLanguageCode": "en"
},
{
"IsPartnerAdmin": "T"
},
{
"PartnerProIdHQ": "1-2GF-564"
},
{
"Accreditations": "G_PM_P1_PLAT_PAR_PP_BU;G_SEGT_EG_SERV_GROWTH;G_SEGT_EG_TS_GROWTH;G_FC_AGR_T2;G_S1_Prospect;G_GPL_P1_PPS_SM;ZZ_UNUSED_EU-zz46-c103;EU-02pp-O138;G_P1_Specialist_Enrolled;G_P1_Specialist_Candidate;G_S1_EXP;G_GPL_P1_EG_BUS;G_GPL_P1_PPS;G_PM_P1_PLAT_PAR;G_PM_P1_BUS_SP_EG_BU;G_GPL_P1_WK;G_P1_Preferred_Candidate;G_P1_Specialist_Enrolled;G_S1_Candidate;G_SEGT_PAN-EG_GROWTH;G_SEGT_EG_NW_GROWTH;G_SEGT_EG_STOR_GROWTH;FY15_P1_STOR_SILV_TGT;FY15_P1_S1_SILV_TGT;FY15_P1_NW_SILV_TGT;G_GPL_P1_S1_P;G_S1_Prospect;FY15_P1_SERV_SILV_TGT;G_PM_P1_BUS_SP_EG;G_PM_P1_PLAT_PAR_PP;G_PM_P1_SILV_PAR_PP_SM;G_SPEC_P1_S1_GOLD_P;G_SPEC_P1_WK_GOLD;ZZ_UNUSED_EU-I&P;ZZ_UNUSED_EU-01pp-Q586;"
},
{
"PhysCountry": "Sweden"
},
{
"PhysCity": "LIDK?PING"
},
{
"PartnerProId": "1-2GF-564"
},
{
"Tier": ""
},
{
"Email": "itg.itg.joakim.isaksson#misco.se"
},
{
"PhysPostalCode": "531 40"
},
{
"PartnerFax": ""
}
]
}
Rest webservice call
//string requestUrl = "http://localhost:8080/RestWSPartner/parameter";
string requestUrl = "https://upp-itg-moonshot-gslb.austin.hp.com/delegate/esmtokenvalidation/v1?token="+tokenId;
Log.WriteInfo("requestUrl in RestWS==>" + requestUrl);
do
{
HttpWebRequest request = HttpWebRequest.Create(requestUrl) as HttpWebRequest;
request.Method = "GET";
request.ContentType = "application/json; charset=UTF-8";//charset=UTF-8";
DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(PartnerData));
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
Stream receiveStream = response.GetResponseStream();
restResponse = jsonSerializer.ReadObject(receiveStream) as PartnerData;
Log.WriteInfo("restResponse.error ==>" + restResponse.error);
Log.WriteInfo("restResponse.message ==>" + restResponse.message);
if (restResponse.error.Equals("false"))
{
// Log.WriteInfo("restResponse===UserId>" + restResponse.parameters.HPPUserId);
Log.WriteInfo("restResponse===PartnerProId>" + restResponse.parameters.PreferredLanguageCode);
Log.WriteInfo("restResponse===PartnerProId>" + restResponse.parameters.FirstName);
Log.WriteInfo("success.. Break");
break;
}
my class
namespace ProductguideNordic
{
[DataContract]
public class PartnerData
{
[DataMember(Name = "error")]
public string error { get; set; }
[DataMember(Name = "message")]
public string message { get; set; }
[DataMember(Name = "parameters")]
public Paramter parameters { get; set; }
}
[DataContract]
public class Paramter
{
[DataMember(Name = "Programs")]
public string Programs { set; get; }
[DataMember(Name = "PartnerSubTypes")]
public string PartnerSubTypes { set; get; }
[DataMember(Name = "CompanyNumber")]
public string CompanyNumber { set; get; }
[DataMember(Name = "PartnerNameHQ")]
public string PartnerNameHQ { set; get; }
[DataMember(Name = "SiteIdentifier")]
public string SiteIdentifier { set; get; }
[DataMember(Name = "LastName")]
public string LastName { set; get; }
[DataMember(Name = "HPInternalUser")]
public string HPInternalUser { set; get; }
[DataMember(Name = "PhysAdLine1")]
public string PhysAdLine1 { set; get; }
[DataMember(Name = "HPPUserId")]
public string HPPUserId { set; get; }
[DataMember(Name = "PartnerName")]
public string PartnerName { set; get; }
[DataMember(Name = "PhysAdLine2")]
public string PhysAdLine2 { set; get; }
[DataMember(Name = "PhysAdLine3")]
public string PhysAdLine3 { set; get; }
[DataMember(Name = "PrimaryChannelSegment")]
public string PrimaryChannelSegment { set; get; }
[DataMember(Name = "HPOrg")]
public string HPOrg { set; get; }
[DataMember(Name = "LastLoginDate")]
public string LastLoginDate { set; get; }
[DataMember(Name = "PartnerPhone")]
public string PartnerPhone { set; get; }
[DataMember(Name = "PartnerLegalName")]
public string PartnerLegalName { set; get; }
[DataMember(Name = "HPOrgs")]
public string HPOrgs { set; get; }
[DataMember(Name = "FirstName")]
public string FirstName { set; get; }
[DataMember(Name = "CountryCode")]
public string CountryCode { set; get; }
[DataMember(Name = "PreferredLanguageCode")]
public string PreferredLanguageCode { set; get; }
[DataMember(Name = "IsPartnerAdmin")]
public string IsPartnerAdmin { set; get; }
[DataMember(Name = "PartnerProIdHQ")]
public string PartnerProIdHQ { set; get; }
[DataMember(Name = "Accreditations")]
public string Accreditations { set; get; }
[DataMember(Name = "PhysCountry")]
public string PhysCountry { set; get; }
[DataMember(Name = "physCity")]
public string physCity { set; get; }
[DataMember(Name = "PartnerProId")]
public string PartnerProId { set; get; }
[DataMember(Name = "Tier")]
public string Tier { set; get; }
[DataMember(Name = "Email")]
public string Email { set; get; }
[DataMember(Name = "PhysPostalCode")]
public string PhysPostalCode { set; get; }
[DataMember(Name = "PartnerFax")]
public string PartnerFax { set; get; }
[DataMember(Name = "PortalSessionId")]
public string PortalSessionId { set; get; }
}
}
In my local with local URL, im able to deserialize the json string and assigned to partnerdata. In server (windows 2012) after deployed into IIS(8.5) parameters values are null/ empty and there was no error while deserialize . Rest WS sending expected response's. and restResponse.error this value deserialized correctly but parameters are not deserialized.
So what's going wrong with me?
In the JSON string you show, "parameters" is an array of name/value pairs:
{
"error": false,
"parameters": [
{
"Programs": "ZZ_UNUSED_EU-01pp-Q669;EU-PPP-O003;ZZ_UNUSED_EU-PPP-CO05;100000;pbse;EU-m110-2007;EU-zz33-L053;EU-zz21-z084;ZZ_UNUSED_EU-01pp-Q875;EU-zz05-L029;ZZ_UNUSED_EU-RAD-003;ZZ_UNUSED_EU-RAD-004;ZZ_UNUSED_EU-RAD-007;ZZ_UNUSED_EU-RAD-012;ZZ_UNUSED_EU-RAD-015;ZZ_UNUSED_EU-zz22-RF21;ZZ_UNUSED_EU-PPP-CO130;ZZ_UNUSED_EU-01pp-Q962;ZZ_UNUSED_EU-01pp-Q963;EU-LandR-COM;EU-01pp-O960;EU-SI-HP-INTL;G_PC_SQ;G_Survey_Inv_TPE-FY11;G_MADO_3Com;G_eLocator_AIS;G_eLocator_ATP;G_eLocator_SCE;G_eLocator_TECI;G_L&R_SCREENED;G_L&R_CASE_OPEN;EU-MDF-Tool;EU-DI-SPT-FLASHPRO;EU-DI-SPT-FLASHPRO-FY11;EU-DI-SPT-FLASHPRO-FY12;G_SPT_PCLM_Prospect;G_SPT_PCLM_Enrolled;SPEC_P1_S1_GOLD_PPS_CAN;G_SPT_Joint_Business_Planning;EU_RET_CE_SCOPE;G_PARTNER_HPQ;ZZ_UNUSED_EU-01pp-O972;SPEC_P1_SERV_SILV_CAN;SPEC_P1_STOR_SILV_CAN;SPEC_P1_NW_SILV_CAN;SPEC_P1_S1_SILV_CAN;PM_P1_PLAT_PART_CAN;PM_P1_SILV_PART_PPS_SM_CAN;SPEC_P1_WK_GOLD_CAN;ZZ_UNUSED_EU-01pp-Q018;"
},
{
"PartnerSubTypes": "G_Tgt_Commercial_T2_Reseller_S;SSP;Supplies Commercial;"
},
Your code is attempting to deserialize parameters as a single object with many properties, e.g.:
{
"error": false,
"parameters": {
"Programs": "ZZ_UNUSED_EU-01pp-Q669;EU-PPP-O003;ZZ_UNUSED_EU-PPP-CO05;100000;pbse;EU-m110-2007;EU-zz33-L053;EU-zz21-z084;ZZ_UNUSED_EU-01pp-Q875;EU-zz05-L029;ZZ_UNUSED_EU-RAD-003;ZZ_UNUSED_EU-RAD-004;ZZ_UNUSED_EU-RAD-007;ZZ_UNUSED_EU-RAD-012;ZZ_UNUSED_EU-RAD-015;ZZ_UNUSED_EU-zz22-RF21;ZZ_UNUSED_EU-PPP-CO130;ZZ_UNUSED_EU-01pp-Q962;ZZ_UNUSED_EU-01pp-Q963;EU-LandR-COM;EU-01pp-O960;EU-SI-HP-INTL;G_PC_SQ;G_Survey_Inv_TPE-FY11;G_MADO_3Com;G_eLocator_AIS;G_eLocator_ATP;G_eLocator_SCE;G_eLocator_TECI;G_L&R_SCREENED;G_L&R_CASE_OPEN;EU-MDF-Tool;EU-DI-SPT-FLASHPRO;EU-DI-SPT-FLASHPRO-FY11;EU-DI-SPT-FLASHPRO-FY12;G_SPT_PCLM_Prospect;G_SPT_PCLM_Enrolled;SPEC_P1_S1_GOLD_PPS_CAN;G_SPT_Joint_Business_Planning;EU_RET_CE_SCOPE;G_PARTNER_HPQ;ZZ_UNUSED_EU-01pp-O972;SPEC_P1_SERV_SILV_CAN;SPEC_P1_STOR_SILV_CAN;SPEC_P1_NW_SILV_CAN;SPEC_P1_S1_SILV_CAN;PM_P1_PLAT_PART_CAN;PM_P1_SILV_PART_PPS_SM_CAN;SPEC_P1_WK_GOLD_CAN;ZZ_UNUSED_EU-01pp-Q018;"
"PartnerSubTypes": ""G_Tgt_Commercial_T2_Reseller_S;SSP;Supplies Commercial;""
In other words, the JSON you are receiving for "parameters"corresponds to a List<Dictionary<string, string>> with UseSimpleDictionaryFormat = false, rather than a single POCO with various properties.
Update
Given that this is a legacy application using an older version of .Net (possibly with some configuration issues, as the var keyword is causing you to have a compiler error), I am going to suggest switching to JavaScriptSerializer which is also a built-in .Net component. Change your data model as follows:
public class PartnerDataDictionary
{
public PartnerDataDictionary()
{
this.ParameterDictionary = new Dictionary<string, string>();
}
string _error;
public string error { get { return _error; } set { _error = value; } }
string _message;
public string message { get { return _message; } set { _message = value; } }
[System.Web.Script.Serialization.ScriptIgnore]
public Dictionary<string, string> ParameterDictionary { get; set; }
public List<Dictionary<string, string>> parameters
{
get
{
List<Dictionary<string, string>> dictList = new List<Dictionary<string, string>>();
foreach (KeyValuePair<string, string> pair in ParameterDictionary)
{
Dictionary<string, string> subDict = new Dictionary<string,string>(1);
subDict[pair.Key] = pair.Value;
dictList.Add(subDict);
}
return dictList;
}
set
{
if (value == null)
{
ParameterDictionary = new Dictionary<string, string>();
return;
}
Dictionary<string, string> dict = new Dictionary<string, string>();
foreach (Dictionary<string, string> entry in value)
foreach (KeyValuePair<string, string> pair in entry)
dict.Add(pair.Key, pair.Value);
ParameterDictionary = dict;
}
}
public string GetParameter(string key)
{
string value;
if (ParameterDictionary.TryGetValue(key, out value))
return value;
return null;
}
public void SetParameter(string key, string value)
{
ParameterDictionary[key] = value;
}
// Add other properties as needed, marking them as `ScriptIgnore`:
[System.Web.Script.Serialization.ScriptIgnore]
public string Programs
{
get { return GetParameter("Programs"); }
set { SetParameter("Programs", value); }
}
}
What I am doing here is reading the JSON as a list of dictionaries, then combining them into a dictionary in the setter for ease of use.
Then you can read and write your JSON parameters as follows:
PartnerDataDictionary data = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<PartnerDataDictionary>(json);
string programs = data.Programs;
Debug.WriteLine(programs);
Original Answer
You could simply change your PartnerData class to have such a list of dictionaries. If you want to continue to use your current data model, and also use DataContractJsonSerializer, you are going to need to introduce a data contract surrogate to do the conversion:
public class ObjectToPropertyDictionaryArraySurrogate<T> : IDataContractSurrogate
{
class ListDictionaryArray : List<Dictionary<string, string>>
{
}
#region IDataContractSurrogate Members
public object GetCustomDataToExport(Type clrType, Type dataContractType)
{
throw new NotImplementedException();
}
public object GetCustomDataToExport(MemberInfo memberInfo, Type dataContractType)
{
throw new NotImplementedException();
}
public Type GetDataContractType(Type type)
{
if (type == typeof(T))
return typeof(ListDictionaryArray);
return type;
}
public object GetDeserializedObject(object obj, Type targetType)
{
if (obj is ListDictionaryArray)
{
var array = (ListDictionaryArray)obj;
var dict = array.SelectMany(pair => pair).ToDictionary(pair => pair.Key, pair => pair.Value);
var json = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(dict);
return DataContractJsonSerializerHelper.GetObject<T>(json, new DataContractJsonSerializerSettings { UseSimpleDictionaryFormat = true });
}
return obj;
}
public void GetKnownCustomDataTypes(Collection<Type> customDataTypes)
{
throw new NotImplementedException();
}
public object GetObjectToSerialize(object obj, Type targetType)
{
if (obj.GetType() == typeof(T))
{
var json = DataContractJsonSerializerHelper.GetJson((T)obj, new DataContractJsonSerializerSettings { UseSimpleDictionaryFormat = true });
var dict = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<Dictionary<string, string>>(json);
var array = new ListDictionaryArray();
array.AddRange(dict.Select(pair => new[] { pair }.ToDictionary(p => p.Key, p => p.Value)));
return array;
}
return obj;
}
public Type GetReferencedTypeOnImport(string typeName, string typeNamespace, object customData)
{
throw new NotImplementedException();
}
public System.CodeDom.CodeTypeDeclaration ProcessImportedType(System.CodeDom.CodeTypeDeclaration typeDeclaration, System.CodeDom.CodeCompileUnit compileUnit)
{
throw new NotImplementedException();
}
#endregion
}
public static class DataContractJsonSerializerHelper
{
public static string GetJson<T>(T obj, DataContractJsonSerializer serializer)
{
using (var memory = new MemoryStream())
{
serializer.WriteObject(memory, obj);
memory.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(memory))
{
return reader.ReadToEnd();
}
}
}
public static string GetJson<T>(T obj)
{
var serializer = new DataContractJsonSerializer(typeof(T));
return GetJson(obj, serializer);
}
public static string GetJson<T>(T obj, DataContractJsonSerializerSettings settings)
{
var serializer = new DataContractJsonSerializer(obj.GetType(), settings);
return GetJson<T>(obj, serializer);
}
public static T GetObject<T>(string json, DataContractJsonSerializer serializer)
{
using (var stream = GenerateStreamFromString(json))
{
var obj = serializer.ReadObject(stream);
return (T)obj;
}
}
public static T GetObject<T>(string json)
{
var serializer = new DataContractJsonSerializer(typeof(T));
return GetObject<T>(json, serializer);
}
public static T GetObject<T>(string json, DataContractJsonSerializerSettings settings)
{
var serializer = new DataContractJsonSerializer(typeof(T), settings);
return GetObject<T>(json, serializer);
}
private static MemoryStream GenerateStreamFromString(string value)
{
return new MemoryStream(Encoding.Unicode.GetBytes(value ?? ""));
}
}
And then use it like:
var settings = new DataContractJsonSerializerSettings
{
UseSimpleDictionaryFormat = true,
DataContractSurrogate = new ObjectToPropertyDictionaryArraySurrogate<Paramter>(),
};
DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(PartnerData), settings);

Creating JSON with dynamic keys in c#

I am trying to replicate the following JSON structure:
{"result_content": {
"data": {
"city_name" : "Beverly Hills",
"2014-06-05T00:00:00": {
"morning_low": "20",
"daytime_high": "40"
},
"2014-06-06T00:00:00": {
"morning_low": "21",
"daytime_high": "41"
},
"2014-06-07T00:00:00": {
"morning_low": "22",
"daytime_high": "42"
},
"2014-06-08T00:00:00": {
"morning_low": "23",
"daytime_high": "43"
},
"2014-06-09T00:00:00": {
"morning_low": "24",
"daytime_high": "44"
}
}
}
}
But I can't figure out how create the keys to be dynamic using C#.
Here are my object class's
public class Day
{
public string morning_low { get; set; }
public string daytime_high { get; set; }
}
public class Data
{
public string city_name { get; set; }
public List<Day> days { get; set; }
}
public class ResultContent
{
public Data data { get; set; }
}
And here is how im building it all:
ResultContent content = new ResultContent();
content.data = new Data();
content.data.city_name = results.Body.GetCityForecastByZIPResponse.GetCityForecastByZIPResult.City;
foreach (Forecast day in results.Body.GetCityForecastByZIPResponse.GetCityForecastByZIPResult.ForecastResult.Forecast){
Day x = new Day();
x.daytime_high = day.Temperatures.DaytimeHigh;
x.morning_low = day.Temperatures.MorningLow;
content.data.days.Add(x);
}
return JsonConvert.SerializeObject(content);
This just returns a JSON array of days which is not what I want. I have the DateTime in my results object.
This is probably what you're looking for in that case...
void Main()
{
Result result = new Result
{
Data = new Data
{
WeatherData = new List<City>
{
new City
{
Name = "London",
Temp = new Dictionary<DateTime, TemperatureRange>
{
{
DateTime.UtcNow,
new TemperatureRange
{
DayHigh = 0,
MorningLow = 50
}
}
}
}
}
}
};
JsonConvert.SerializeObject(result);
}
public class Result
{
[JsonProperty("result_content")]
public Data Data { get; set; }
}
public class Data
{
[JsonProperty("data")]
public List<City> WeatherData { get; set; }
}
public class City
{
[JsonProperty("city_name")]
public string Name { get; set; }
public Dictionary<DateTime, TemperatureRange> Temp { get; set; }
}
public class TemperatureRange
{
public int MorningLow { get; set; }
public int DayHigh { get; set; }
}
If you really want such a sophisticated format, I'd go with a custom JsonConverter:
public class Day
{
public string morning_low { get; set; }
public string daytime_high { get; set; }
}
[JsonConverter(typeof(Data.Converter))]
public class Data
{
public string city_name { get; set; }
public Dictionary<DateTime, Day> days { get; set; }
public class Converter : JsonConverter
{
public override bool CanConvert(Type type) { return type == typeof(Data); }
public override object ReadJson(JsonReader reader, Type type, object value, JsonSerializer serializer)
{
Data obj = new Data();
obj.days = new Dictionary<DateTime, Day>();
DateTime v;
while (reader.Read() && reader.TokenType != JsonToken.EndObject)
{
if (reader.TokenType != JsonToken.PropertyName)
throw new JsonSerializationException("Unexpected token type");
if ("city_name" == (string)reader.Value)
{
if (obj.city_name != null)
throw new JsonSerializationException("Duplicate key: city_name");
obj.city_name = reader.ReadAsString();
}
else if (DateTime.TryParseExact((string)reader.Value, serializer.DateFormatString,
serializer.Culture, DateTimeStyles.None, out v))
{
reader.Read();
obj.days.Add(v, serializer.Deserialize<Day>(reader));
}
else
{
if (serializer.MissingMemberHandling == MissingMemberHandling.Error)
throw new JsonSerializationException("Unexpected property: " + reader.Value);
reader.Read();
serializer.Deserialize(reader, reader.ValueType);
}
}
return obj;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
Data obj = (Data)value;
writer.WriteStartObject();
writer.WritePropertyName("city_name");
writer.WriteValue(obj.city_name);
foreach (var pair in obj.days)
{
writer.WritePropertyName(pair.Key.ToString(serializer.DateFormatString));
serializer.Serialize(writer, pair.Value);
}
writer.WriteEndObject();
}
}
}
public class ResultContent
{
public Data data { get; set; }
}
public class ResultContentRoot
{
public ResultContent result_content { get; set; }
}
public static void Main()
{
var data = new Data();
data.city_name = "New York";
data.days = new Dictionary<DateTime, Day>();
data.days.Add(DateTime.Today, new Day() { morning_low = "24", daytime_high = "29" });
var result_content = new ResultContent();
result_content.data = data;
var root = new ResultContentRoot();
root.result_content = result_content;
var s = JsonConvert.SerializeObject(root);
}
I think it is the only way to mix dictionary and object contracts.
If you only need one-way serialization, you may also go with dynamic. It takes less code:
public class Day
{
public string morning_low { get; set; }
public string daytime_high { get; set; }
}
public class ResultContent
{
public dynamic data { get; set; }
}
public class ResultContentRoot
{
public ResultContent result_content { get; set; }
}
public static void Main()
{
dynamic data = new ExpandoObject();
data.city_name = "New York";
IDictionary<string, object> days = (IDictionary<string, object>)data;
days.Add(DateTime.Today.ToString("yyyy-MM-dd'T'HH:mm:ss"), new Day() { morning_low = "24", daytime_high = "29" });
var result_content = new ResultContent();
result_content.data = data;
var root = new ResultContentRoot();
root.result_content = result_content;
var s = JsonConvert.SerializeObject(root);
}
But it is very close to discard all that strong typing and just construct response with JObjects.
I think it should be an array of days and representing it the way you asked wouldn't be good, because creating a dynamic json format is difficult to parse.
They way you defined it should produce something like this below.
{
"result_content": {
"data": {
"city_name" : "Beverly Hills",
"days" :
[
{
"morning_low": "20",
"daytime_high": "40"
},
{
"morning_low": "21",
"daytime_high": "41"
},
{
"morning_low": "22",
"daytime_high": "42"
},
{
"morning_low": "23",
"daytime_high": "43"
},
{
"morning_low": "24",
"daytime_high": "44"
}
]
}
}
}
What you're missing is the day itself, which should be defined in your Day class. Add it to get:
"days" :
[
{
"day" : "2014-06-05T00:00:00",
"morning_low": "20",
"daytime_high": "40"
}
...
]

WCF ignore data contract not working

I have a WCF Service hosted on IIS. Here is my Interface:
[ServiceContract]
[SilverlightFaultBehavior]
public interface IETC
{
[OperationContract]
[PrincipalPermission(SecurityAction.Demand, Role = "XYZ")]
string GetStampXML();
[OperationContract]
[PrincipalPermission(SecurityAction.Demand, Role = "XYZ")]
List<Stamp> GetStamps();
}
I am getting an error when I go to my WCF service through the web browser. The error is as follows:
Type 'System.Windows.Media.ImageSource' cannot be serialized. Consider marking it with the DataContractAttribute attribute.....
My stamps Class is:
[DataContract]
public class Stamp
{
private string _Name;
private string _SmallIcon = "";
private string _MediumIcon = "";
private string _LargeIcon = "";
private BitmapImage _SmallImage;
private BitmapImage _MediumImage;
private BitmapImage _LargeImage;
[DataMember]
public string Name
{
get { return _Name; }
set { _Name = value; }
}
[DataMember]
public string SmallIcon
{
get { return _SmallIcon; }
set { _SmallIcon = value; }
}
[DataMember]
public string MediumIcon
{
get { return _MediumIcon; }
set { _MediumIcon = value; }
}
[DataMember]
public string LargeIcon
{
get { return _LargeIcon; }
set { _LargeIcon = value; }
}
[IgnoreDataMember]
public BitmapImage SmallImage
{
get { return _SmallImage; }
set { _SmallImage = value; }
}
[IgnoreDataMember]
public BitmapImage MediumImage
{
get { return _MediumImage; }
set { _MediumImage = value; }
}
[IgnoreDataMember]
public BitmapImage LargeImage
{
get { return _LargeImage; }
set { _LargeImage = value; }
}
}
It is like the IgnoreDataMember is not being recognized. I tried it without the IgnoreDataMember figure it was going to only serialize the DataMembers, and that didn't work either. Any ideas why it seems to trying to serialize the BitmapImage?
What version of .net are you running? .NET 4 Data Contract does not require you to explicitly set Ignore attributes. You can test what's being produced by using DataContractSerializer and writing the content to the file. Create console application and reference your service project.
namespace SO_10281928
{
class Program
{
static void Main(string[] args)
{
var instance = new Stamp
{
Name = "Test",
SmallIcon = "Small Icon",
LargeIcon = "LargeIcon",
MediumIcon = "MediumIcon"
};
using (var stream = new FileStream(#"c:\temp\stamp.xml", FileMode.Create))
{
var ds = new DataContractSerializer(typeof (Stamp));
ds.WriteObject(stream, instance);
}
Console.WriteLine("Done.");
Console.ReadLine();
}
}
[DataContract]
public class Stamp
{
private string _Name;
private string _SmallIcon = "";
private string _MediumIcon = "";
private string _LargeIcon = "";
private BitmapImage _SmallImage;
private BitmapImage _MediumImage;
private BitmapImage _LargeImage;
[DataMember]
public string Name
{
get { return _Name; }
set { _Name = value; }
}
[DataMember]
public string SmallIcon
{
get { return _SmallIcon; }
set { _SmallIcon = value; }
}
[DataMember]
public string MediumIcon
{
get { return _MediumIcon; }
set { _MediumIcon = value; }
}
[DataMember]
public string LargeIcon
{
get { return _LargeIcon; }
set { _LargeIcon = value; }
}
public BitmapImage SmallImage
{
get { return _SmallImage; }
set { _SmallImage = value; }
}
public BitmapImage MediumImage
{
get { return _MediumImage; }
set { _MediumImage = value; }
}
public BitmapImage LargeImage
{
get { return _LargeImage; }
set { _LargeImage = value; }
}
}
public class BitmapImage
{
}
}
And the result is :
<Stamp xmlns="http://schemas.datacontract.org/2004/07/SO_10281928" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<LargeIcon>LargeIcon</LargeIcon>
<MediumIcon>MediumIcon</MediumIcon>
<Name>Test</Name>
<SmallIcon>Small Icon</SmallIcon>
</Stamp>

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