This is my code:
dynamic resultObject = JsonConvert.DeserializeObject(Result);
string final = JsonConvert.SerializeObject(resultObject);
This my the result of final (JSON):
How do get the selling_price field? like doing final.selling_price?
My class:
public class ItemPriceJson {
public string item_price_id { get; set; }
public string item_code { get; set; }
public string item_desc { get; set; }
public string trnx_unit { get; set; }
public string price_level_id { get; set; }
public string price_level_code { get; set; }
public string selling_price { get; set; }
} // itemPriceJson
You're not deserializing the json to a dynamic object properly. First of all, it's an array, not an object.
So, try it like this:
dynamic resultObject = JArray.Parse(Result); //Dynamic object.
var sellingPrice = resultObject[0].selling_price; //Get the selling price. Could also use some casting here.
You should change your class to
public class ItemPriceJson {
public int item_price_id { get; set; }
public string item_code { get; set; }
public string item_desc { get; set; }
public string trnx_unit { get; set; }
public int price_level_id { get; set; }
public string price_level_code { get; set; }
public int selling_price { get; set; }
} // itemPriceJson
and deserialize it with
var results = JsonConvert.DeserializeObject<List<ItemPriceJson>>( Result );
because the json result contains an array of objects and so you need a collection for deserialization
Create a POCO class which describes the object for example;
public class MyItemObject
{
public string item_price_id { get; set; }
public string item_desc { get; set; }
public string trnx_unit { get; set; }
}
Then use JsonConvert to deserialize a instance of the object.
var result = JsonConvert.DeserializeObject<MyItemObject>(json);
EDIT
As json is a list/collection deserialize as a list type;
var listResult = JsonConvert.DeserializeObject<List<MyItemObject>>(json);
public class ItemPriceJson {
public string item_price_id { get; set; }
public string item_code { get; set; }
public string item_desc { get; set; }
public string trnx_unit { get; set; }
public string price_level_id { get; set; }
public string price_level_code { get; set; }
public string selling_price { get; set; }
}
And you can use the Newtonsoft json library
var result = JsonConvert.DeserializeObject<List<ItemPriceJson>>(jsonstring);
Related
I have these classes
public class ResponseEntryInfoAndTollDue
{
public int Code { get; set; }
public string Message { get; set; }
public TagEntryInfo TagEntryInfo { get; set; }
public TollMatrix TollMatrix { get; set; }
public List<TagInfoParam> TagInfoParams { get; set; }
public ResponseEntryInfoAndTollDue()
{
TagEntryInfo = new TagEntryInfo();
TollMatrix = new TollMatrix();
TagInfoParams = new List<TagInfoParam>();
}
}
public class TagEntryInfo
{
public long TrxnID { get; set; }
public string TagRFIDNumber { get; set; }
public string EntryTrxnDTime { get; set; }
public int EntryPlaza { get; set; }
public short EntryLane { get; set; }
public string EntryDirection { get; set; }
public string EntryLaneType { get; set; }
public string PostingDateTime { get; set; }
public string Action { get; set; }
}
public class TollMatrix
{
public decimal TollDue { get; set; }
public decimal TollVat { get; set; }
public decimal TollNoVat { get; set; }
public bool IsDefaulted { get; set; }
}
public class TagInfoParam
{
public DateTime? AsOfDate { get; set; }
public Decimal? AvailableBalance { get; set; }
public string TagNumber { get; set; }
public string PLateNumber { get; set; }
public Int16 HonorPlate { get; set; }
public Int16 TagStatusID { get; set; }
public string TID { get; set; }
public string EPC { get; set; }
public string AccountTypeID { get; set; }
public Int16 AccountStatusID { get; set; }
public Int16 TagClassID { get; set; }
public Int16 Status { get; set; }
}
From a webservice I get this json string:
{"Result":{"Code":0,"Message":"With entry info computed toll due","TagEntryInfo":{"TrxnID":6666750,"TagRFIDNumber":"1234567890","EntryTrxnDTime":"2021-01-16 16:40:16.560","EntryPlaza":123,"EntryLane":1,"EntryDirection":"B","EntryLaneType":"A","PostingDateTime":"2021-01-16T16:43:16.05","Action":"A"},"TollMatrix":{"TollDue":164.0000,"TollVat":17.5700,"TollNoVat":146.4300,"IsDefaulted":false},"TagInfoParams":[{"AsOfDate":"2021-01-16T17:12:04.213","AvailableBalance":537.0000,"TagNumber":"1234567890","PLateNumber":"Q123","HonorPlate":1,"TagStatusID":1,"TID":"Elfkajs98","EPC":"889080990709","AccountTypeID":"REV","AccountStatusID":1,"TagClassID":1,"Status":1}]},"Id":351,"Exception":null,"Status":5,"IsCanceled":false,"IsCompleted":true,"CreationOptions":0,"AsyncState":null,"IsFaulted":false}
This is how I convert it:
var response = JsonConvert.DeserializeObject(ret);
I know that it doesn't get converted because this is what I get:
This is the result:
Why is this not being converted into an object?
As Fabio also mentioned that your json contains the attribute Result which is not part of your object so you can use below logic to deserialize
var jObj = JObject.Parse(json);
var responseEntryInfoAndTollDue = JsonConvert.DeserializeObject<ResponseEntryInfoAndTollDue>(jObj["Result"].ToString());
The above code first parse the Json to JObject and uses Result property to deserialize to ResponseEntryInfoAndTollDue object.
Check this fiddle - https://dotnetfiddle.net/7Pc3sJ
public List<CoinMarket> GetCoinMarket()
{
List<CoinMarket> coinMarket = new List<CoinMarket>();
var URLWebAPI = "http://190.202.54.19/wsZeus/api/Account/Markets/Get";
try
{
using (var Client = new System.Net.Http.HttpClient())
{
var JSON = Client.GetStringAsync(URLWebAPI);
coinMarket = (List<CoinMarket>)Newtonsoft.Json.JsonConvert.DeserializeObject(JSON.Result);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(#" ERROR {0}", ex.Message);
}
return coinMarket;
}
It is throwing and i do not know why. It looks like there is something wrong with the serialization part. But i verified it.
You are using json deserializer incorrectly. DeserializeObject returns custom object which is not castable to your List<T>. This output:
Newtonsoft.Json.Linq.JArray
SO20171129.CoinData[]
System.Collections.Generic.List`1[SO20171129.CoinData]
is the result of this code.
class Program
{
static void Main(string[] args)
{
// returns Newtonsoft.Json.Linq.JArray
var coinMarket = Newtonsoft.Json.JsonConvert.DeserializeObject(File.ReadAllText("get.json"));
Console.WriteLine(coinMarket.GetType());
// returns array of CoinData
var coinMarketTyped = Newtonsoft.Json.JsonConvert.DeserializeObject<CoinData[]>(File.ReadAllText("get.json"));
Console.WriteLine(coinMarketTyped.GetType());
// returns List of CoinData
var coinMarketTyped2 = Newtonsoft.Json.JsonConvert.DeserializeObject<List<CoinData>>(File.ReadAllText("get.json"));
Console.WriteLine(coinMarketTyped2.GetType());
}
}
public class CoinData
{
public string id { get; set; }
public string name { get; set; }
public string symbol { get; set; }
public string rank { get; set; }
public string price_usd { get; set; }
public string price_btc { get; set; }
public string __invalid_name__24h_volume_usd { get; set; }
public string market_cap_usd { get; set; }
public string available_supply { get; set; }
public string total_supply { get; set; }
public string percent_change_1h { get; set; }
public string percent_change_24h { get; set; }
public string percent_change_7d { get; set; }
public string last_updated { get; set; }
}
My guess is that your json structure members do not match the CoinMarket class members.
What I would do is to copy the json result and generate the corresponding CoinMarket class on the following website: http://json2csharp.com/
It will output the right CoinMarket class for you.
public class CoinMarket
{
public string id { get; set; }
public string name { get; set; }
public string symbol { get; set; }
public string rank { get; set; }
public string price_usd { get; set; }
public string price_btc { get; set; }
[JsonProperty("24h_volume_usd")]
public string h_volume_usd { get; set; }
public string market_cap_usd { get; set; }
public string available_supply { get; set; }
public string total_supply { get; set; }
public string percent_change_1h { get; set; }
public string percent_change_24h { get; set; }
public string percent_change_7d { get; set; }
public string last_updated { get; set; }
}
}
This is my CoinMarket Class
I have class which return json string but I want to deserilize it into C# List Objects. My current code look like this
public class JsonBuilder
{
public static string BuildJson(DateTime fromDate, DateTime toDate)
{
var list = new List<dynamic>();
// create list with json object from service
var jsonObjList = JsonConvert.SerializeObject(list);
var des = (List<JsonObject>)JsonConvert.DeserializeObject(jsonObjList, typeof(List<JsonObject>));
return JsonConvert.SerializeObject(list);
}
Exception thrown when it tries to deserialize the "serialized" json string
An exception of type 'Newtonsoft.Json.JsonSerializationException' occurred in Newtonsoft.Json.dll but was not handled in user code
Additional information: Error converting value
InnerException:
{"Could not cast or convert from System.String to MvcWebApp.Models.JsonObject."}
Have you tried this:
var des = (List<DeserializeObjects>)JsonConvert.DeserializeObject(jsonObjList, jsonObjList.GetType()));
or this:
var des = (List<DeserializeObjects>)JsonConvert.DeserializeObject(jsonObjList, typeof(List<dynamic>));
else this post could also help you to achieve your goal:
Deserialize json object into dynamic object using Json.net
try this
var jsonObjList = JsonConvert.SerializeObject(list);
dynamic resultList = JsonConvert.DeserializeObject(jsonObjList);
I would try with this class
public class Author
{
public int id { get; set; }
public string slug { get; set; }
public string name { get; set; }
public string first_name { get; set; }
public string last_name { get; set; }
public string nickname { get; set; }
public string url { get; set; }
public string description { get; set; }
}
public class CustomFields
{
public List<string> tags { get; set; }
}
public class Post
{
public int id { get; set; }
public string type { get; set; }
public string slug { get; set; }
public string url { get; set; }
public string status { get; set; }
public string title { get; set; }
public string title_plain { get; set; }
public string content { get; set; }
public string excerpt { get; set; }
public string date { get; set; }
public string modified { get; set; }
public List<object> categories { get; set; }
public List<object> tags { get; set; }
public Author author { get; set; }
public List<object> comments { get; set; }
public List<object> attachments { get; set; }
public int comment_count { get; set; }
public string comment_status { get; set; }
public CustomFields custom_fields { get; set; }
}
public class YourObject
{
public string status { get; set; }
public int count { get; set; }
public int count_total { get; set; }
public int pages { get; set; }
public List<Post> posts { get; set; }
}
Then, you deserialize with this :
var yourObject = JsonConvert.DeserializeObject<YourObject>(json);
I have the result of an API call which looks like:
{"Operations":[{"OperationId":"2","OperationObjectId":"Application","OperationName":"UnlockSession","OperationParameters":[{"Name":"viewModel","Value":"model"},{"Name":"returnUrl","Value":"https://"}],"OperationCaller":{"UserPrincipalName":"bob","ClientIPAddress":""},"OperationResult":"Succeeded","OperationStatus":200,"OperationRequest":{"Method":"POST","Url":""},"OperationStartedTime":"2013-08-20T12:04:17.5462357Z","OperationCompletedTime":"2013-08-20T12:04:17.9979469Z"}],"ContinuationToken":null}
Ideally I want to convert it to an object so I can do stuff like:
object.OperationObjectID; // gives Application
object.Method; // gives POST
object.OperationResult; // gives Succeeded
Does any one know how that is done? Does the JSON parse need to be aware of the format?
Thanks,
Andrew
you can use Json.Net as below
dynamic object = JObject.Parse(yorjsonstring);
object.Operations[0].OperationObjectID;
object.Operations[0].Method;
object.Operations[0].OperationResult;
rather than using dynamic object you can generate classes for your json and serialize to those classes like below.
you can get help of http://json2csharp.com/ site for generate classes
public class OperationParameter
{
public string Name { get; set; }
public string Value { get; set; }
}
public class OperationCaller
{
public string UserPrincipalName { get; set; }
public string ClientIPAddress { get; set; }
}
public class OperationRequest
{
public string Method { get; set; }
public string Url { get; set; }
}
public class Operation
{
public string OperationId { get; set; }
public string OperationObjectId { get; set; }
public string OperationName { get; set; }
public List<OperationParameter> OperationParameters { get; set; }
public OperationCaller OperationCaller { get; set; }
public string OperationResult { get; set; }
public int OperationStatus { get; set; }
public OperationRequest OperationRequest { get; set; }
public string OperationStartedTime { get; set; }
public string OperationCompletedTime { get; set; }
}
public class RootObject
{
public List<Operation> Operations { get; set; }
public object ContinuationToken { get; set; }
}
then
RootObject obj = JsonConvert.DeserializeObject<RootObject>(jsonstring);
obj.Operations[0].OperationObjectID;
Try to use JavaScriptSerializer class: http://msdn.microsoft.com/ru-ru/library/system.web.script.serialization.javascriptserializer.aspx.
Guyz
I am trying to parse a JSON string into object. I have the below entity in which I am parsing the JSON string
public class Room : BaseEntity
{
public string Name { get; set; }
public string EmailAddress { get; set; }
public string RoomListEmailAddress { get; set; }
public string MinimumXCoordinateInMap { get; set; }
public string MinimumYCoordinateInMap { get; set; }
public string MaximumXCoordinateInMap { get; set; }
public string MaximumYCoordinateInMap { get; set; }
public string RoomCapacity { get; set; }
public List<RoomImage> RoomImage { get; set; }
public string FloorName { get; set; }
public string CreatedDate { get; set; }
public string CreatedId { get; set; }
public string LastUpdatedDate { get; set; }
public string LastUpdatedId { get; set; }
public InternalOnly InternalOnly { get; set; }
//public List<Equipment> Equipment { get; set; }
public override string ToString()
{
return this.Name;
}
}
public class RoomImage : BaseEntity
{
public string ImagePath { get; set; }
public string ImageType { get; set; }
public string CreatedDate { get; set; }
public string CreatedId { get; set; }
public string LastUpdatedDate { get; set; }
public string LastUpdatedId { get; set; }
public InternalOnly InternalOnly { get; set; }
}
public class InternalOnly : BaseEntity
{
public string RoomId { get; set; }
public string FloorId { get; set; }
}
public class BaseEntity
{
}
I am using below method to parse the string into object
public static T ParseObjectToJSON<T>(string responseText)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
using (MemoryStream stream = new MemoryStream(Encoding.Unicode.GetBytes(responseText)))
{
var rootObject = serializer.ReadObject(stream);
//return Convert.ChangeType(rootObject,typeof(T),System.Globalization.CultureInfo.CurrentCulture.TextInfo);
return (T)rootObject;
}
}
Below is the JSON string which I am trying to parse
https://docs.google.com/document/d/1k81M_UxIrXpHUPQNDUCHDfNw1wY7LM4mAaXjwpYMshk/edit?usp=sharing
The below json string is working
https://docs.google.com/document/d/1uQNwMmSyEZSolyxUVJl6gXzZPr6aRAf_WAogmUvVqt4/edit?usp=sharing
While parsing I get below error
The data contract type 'GAP.Entities.Room' cannot be deserialized because the member 'RoomImage' is not public. Making the member public will fix this error. Alternatively, you can make it internal, and use the InternalsVisibleToAttribute attribute on your assembly in order to enable serialization of internal members - see documentation for more details. Be aware that doing so has certain security implications.
Note- RoomImage is marked public in the entity class. I get this error only when JSON string contains RoomImage array string otherwise no erro.
Any help is highly appreciated.
Thanks
Vinod
You can download and deserialize an JSON using Newtonsoft.
You have to reference the following DLL, and after that you can try this:
List<Room> deserializedObj = (List<Room>)Newtonsoft.Json.JsonConvert.DeserializeObject(responseText, typeof(List<Room>));
The problem with your json is that if RoomImage has a single element, your service returns it as an object {} not as an array of objects [{}].
So If you want to use type-safe classes in your code(since dynamically accessing is also possible) you should pre-process your json before deserializing. Below code works (of course, as everybody says, using Json.Net)
string json = your__json__string
//PreProcess
var jobj = JObject.Parse(json);
foreach (var j in jobj["ObjectList"])
{
if (!(j["RoomImage"] is JArray))
{
j["RoomImage"] = new JArray(j["RoomImage"]);
}
}
var obj = JsonConvert.DeserializeObject<RootObject>(jobj.ToString());
public class InternalOnly
{
public string RoomId { get; set; }
public string FloorId { get; set; }
}
public class RoomImage
{
public string ImagePath { get; set; }
public string ImageType { get; set; }
public string CreatedDate { get; set; }
public string CreatedId { get; set; }
public string LastUpdateDate { get; set; }
public string LastUpdateId { get; set; }
}
public class ObjectList
{
public string Name { get; set; }
public string EmailAddress { get; set; }
public string RoomListEmailAddress { get; set; }
public string MinimumXCoordinateInMap { get; set; }
public string MinimumYCoordinateInMap { get; set; }
public string MaximumXCoordinateInMap { get; set; }
public string MaximumYCoordinateInMap { get; set; }
public string RoomCapacity { get; set; }
public RoomImage[] RoomImage { get; set; }
public string FloorName { get; set; }
public string CreatedDate { get; set; }
public string CreatedId { get; set; }
public string LastUpdatedDate { get; set; }
public string LastUpdatedId { get; set; }
public string IsRestrictedRoom { get; set; }
public InternalOnly InternalOnly { get; set; }
public object Equipment { get; set; }
}
public class RootObject
{
public List<ObjectList> ObjectList { get; set; }
}
The property RoomImage is public but your class probably isn't.
Make sure the RoomImage class is also marked public. That should solve the problem.
Alternatively use a library like JSON.NET that can do this deserialization without the need for public classes.