Questions tagged [json.net]

Renowned as the go-to JSON framework for .NET, Json.NET (also referred to as Newtonsoft.Json) excels in both popularity and high-performance capabilities.

Encountering a compilation error while trying to utilize Newtonsoft.Json in my Blazor application

This snippet contains the following code: @page "/" @using Newtonsoft.Json @using System.Text.Json @using System.Text.Json.Serialization <h1>Hello World</h1> @code { public class Account { public string Email { get; set; } public boo ...

JToken.GetToken Comparable in C#

I am looking for a way to remove the outer node of a JSON using tools within the .NET Framework (C#). Here is an example: { app: { ... } } Is there a method to strip away the outer node so that we are left with only: { ... } PLEASE NO ...

Unraveling Loops in Data Structures through Two-Step Deserialization

I am currently working with a Serializer/Deserializer that utilizes the PreserveReferencesHandling = PreserveReferencesHandling.All property. The challenge I am facing revolves around circular references within my code. Allow me to provide a simple examp ...

Guide to serializing JSON in C# without nested elements

I have developed a controller to send JSON data to a mobile application. The following code snippet shows the action I used: public JsonResult GetFirm(int id) { Firm firm = new Firm(); firm = dbContext.Firms.FirstOrDefault(s => s.id == id); ...

Tips for utilizing a particular field as the title of a JSON entity while employing JsonConvert.SerializeObject

After running serializeobject, my current output looks like this: { "ID": "dog-1", "fed": [ "2016/05/19T01:00:00Z" ] }, The object I'm trying to serialize contains a string for "ID" and a List of strings for "fed." Is there a way to modify the output ...

Guide on utilizing Json.net for extracting an array from a json document

After conducting thorough research, I have come across several solutions to similar problems like mine. Unfortunately, none of them have proven to be successful so far. My main goal is to parse a json file where the first item is an array structured like t ...

Decoding dynamic JSON data into a versatile .NET object

How can I effectively deserialize the JSON response provided below into a generic object? Specifically, I need to extract the response message and access the list of errors, along with the field name and error message associated with each error. { "mess ...

I require assistance with parsing the JSON outcome within a C# Windows Phone application

As a newbie in the world of developing Windows Phone apps, I am facing an issue that has been persistent even after trying out all possible solutions. The problem arises when my application tries to retrieve data from a web service, and the result it recei ...

Decoding a series of structures within a list

Attempting to deserialize from JSON into a List<struct>, but continues to have the object returning null. The source JSON data types are correct and no errors are being thrown in the code, leaving confusion as to why it is not functioning. The class ...

What is the best way to include all validation attributes from the individual properties when serializing a model?

Situation: I am working on a jsonP service with mvc controller methods that define formfields along with validation rules. The issue I'm facing is figuring out how to serialize the validation attributes. I want the validation attributes to be formatted in ...

Struggling to manipulate JSON file in C#

Having a library application allows users to register as new users, add books, borrow them, and deposit. However, encountering an issue with the JSON file raises some concerns. The problem arises when trying to manipulate the data using a foreach loop. Odd ...

Conditional serialization in Json.NET based on the type of the object being serialized

I am aware that Json.NET allows for conditional serialization by using ShouldSerialize{PropName} Is there a way to prevent the serialization of an entire type without changing the type that references it? For example: public class Foo { public boo ...

Resolving C# JSON Parsing Errors

I am attempting to retrieve JSON data but encountering an error. An unexpected character was encountered while parsing the value: . Path '', line 0, position 0. I am using Net 4.5 and the JSON.Net Framework. Below is my code: WebClient net ...

Unable to convert the current JSON object (for example, {"title":"content"}) into the specified type 'System.Collections.Generic.List`1`

using System; using System.Collections.Generic; using System.Linq; using System.Text; using Facebook; using Newtonsoft.Json; namespace facebook { class Program { static void Main(string[] args) { var client = new Facebo ...

What is the best way to delete JSON properties that have a certain name from a collection of objects?

My attempt to remove JSON properties by a specific "key" did not yield the expected results. Despite my efforts, the code remains unchanged. This is what I did void Start() { var foodlist = new List<Food>() { new() { name = "Banana", ...

Having trouble converting JSON to an object with Newtonsoft.Json library

I have encountered an issue with deserializing a sample JSON received from a service using C#. { "columns": [ "empid", "employeename", "currentAllocation", "Dept head", ...

The deserialization functionality in System.Text.Json's JsonSerializer.Deserialize<T>() may experience difficulties in appropriately parsing

Looking to deserialize this json using System.Text.Json, but encountering difficulties that are unclear. The following result has been obtained: PS: It should be noted that the array containing elements does not have a name, simply follow the link for ref ...

Code for dividing large JSON data based on node names in a generic way

I am facing a challenge with handling very large JSON files, where the car array can contain up to 100,000,000 records. The file size ranges from 500mb to 10 GB and I am currently using Newtonsoft json.net for processing. Input { "name": "John", "age": " ...

Instructions on setting up a Newtonsoft JSON converter to convert a sophisticated data structure into a more straightforward format

I am interested in implementing the Enumerations library found at https://github.com/HeadspringLabs/Enumeration. Currently, when attempting to serialize/deserialize an Enumeration, it is serialized as a complex object. For instance, taking the example of t ...

Extracting information from multiple JSON arrays in C#

Searching for statistics in this Json Code is my goal: { "summonerId": 32033681, "modifyDate": 1403658807000, "champions": [{ "id": 40, "stats": { "totalSessionsPlayed": 1, "totalSessionsLost": 0, ...

Extracting a JSON object from a serialized value

Below is a simple C# class object that I want to convert into a JSON string: public class SampleObject { public SampleObject() { Name = "Hello"; State = 7; } public string Name { get; set; } public int State { get; set ...

Transform JSON empty arrays into XML using Json.NET (Newtonsoft)

Considering the given JSON data: string json = @" { ""Identifier"": ""MyID"", ""Data"": [] }"; If I change it to XML using: XDocument xDocument = JsonConvert.DeserializeXNod ...

Issue encountered when attempting to convert JSON string into a collection

My JSON string looks like this: "{"Key":3296,"Value1":"Test1","Value2":"City","Value3":"TX","Value4":null,"Value5":null,"Value6":null}{"Key":3297,"Value1":"Test2","Value2":"PUD","Value3":"TX","Value4":null,"Value5":nu ...

Parsing Newtonsoft JSON into an object

I'm a bit out of touch with VB, but I'm trying to parse a JSON string. I've already done this in C# without any issues. This is for an older project where I'm using VS2008. This is the class structure: Public Class ResponseMeta Private _type As String ...

Discovering the Desired Key within a JSON Structure

For my c# project, I am utilizing the Json.net Library. Within this library, I have a lengthy JSON object with multiple subfields. Here is an example of the structure: { "count": 10, "Foo1": [ { "id": "1", "name": "Name1" }, { ...

An attempt to convert an object of type 'Newtonsoft.Json.Linq.JObject' to another type has failed

I'm currently using JSON.NET and reflection to parse data into specific properties. property.SetValue(comInstance, field.Value); However, I encounter an ArgumentException on this line: An unhandled exception of type 'System.ArgumentException&ap ...

Simple steps to find a specific node within a Jobject

When dealing with unspecified JSON data, I have a loaded JObject. Now, I need to search for specific elements across the jObject and iterate through each one. For example: {Item : { PA : P , VA : { COLL: D} } } Or {Fields : { CA : P , MA : { COLL: Q} ...

Using Json.Net: Learning to Exclude Null Elements When Deserializing Array JSON Data

My JSON data looks like this: { "Variable1": "1", "Variable2": "50000", "ArrayObject": [null] } In my code, I have the following stubs: public class Class1 { public string Variable1 { get; se ...

Using JSON in Visual Basic 2010 to Encode and Decode Objects

Here is a snippet of code I have: Imports Newtonsoft.Json Imports Newtonsoft.Json.Linq Module Module1 Structure JSONList Dim Name, Email As String Dim Age As Integer End Structure Sub Main() Dim Data(1) As JSONList Data(0).Name = "Josh" ...

C# - Parsing JSON with JObject - Incorrect JSON Format

I am currently handling an API that returns JSON data. There is a method in place that calls the API and extracts the necessary nodes from the JSON response. Everything has been working smoothly so far, but the latest JSON response seems to be malformed. ...

Problematic JSON Responses from WCF Service

In my WCF Class Library, I have a function called SampleJSON(string name) with the following Operation Contract: [OperationContract] [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, UriTemplate = "sample/{name}")] string SampleJSON(strin ...

Unable to access the Newtonsoft.Json file or assembly

My current project involves using Json.net in c# to create a json file. After building the code successfully, I managed to generate the parser.exe file without any issues. However, when attempting to run this parser.exe on a different server where it is in ...

Transform Json data into a C# collection

I am encountering an issue while trying to deserialize JSON into a collection of C# objects. The error message I am receiving is as follows: {"Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.L ...

Changing a Unique JSON Structure into a VB.NET Object

I have a JSON object that is structured as follows. { "Errors":{ "err1":[ //* Array of err1 objects ], "err2":[ //* Array of err2 objects ] } } This object is used to report errors identified in a request to a PHP page. My goal i ...

The current JSON object cannot be deserialized into the specified type because the type is expecting a JSON array

I'm currently learning how to handle JSON strings in C# and encountered an issue while trying to deserialize a JSON string: Unable to deserialize the current JSON object (e.g. {'name':'value'}) into type 'System.Collections.Ge ...

Comparing MVC's return Json() Method to JSON-Based Web Services

I am eager to offer a service on my website that allows any user to request JSON data. Ultimately, I hope that users will utilize this service frequently. My website is built using the asp.net MVC framework and I am exploring the best approach for accompl ...

Decoding Json data in C# using JSON.NET

I am currently working on a C# application that retrieves the backpack value of players in a game called TF2 using Backpack.tf's API. Here is a snippet of the code: (MAIN CLASS) JsonConvert.DeserializeObject<Json1>(json); (END OF MAIN CLASS) ...

Working with Linq in JSON Serialization

Below is a json string that I have: { 'Sheet1': [{ 'EmployeeNo': '123456', 'EmployeeName': 'Midhun Mathew' }, { 'EmployeeNo': '123457& ...

How to obtain a JSON token using Newtonsoft that has a name containing a special character

I am encountering some Json files with special characters as shown below: { "someProperties" : "someValues", "$ROOT_QUERY.searchResults({\"path\":\"/some/url\"}).features": { ...

The Web API encountered an error while trying to serialize the response body for the specified content type

Working on an ASP.NET MVC 5 Web Api project. The application already has multiple APIs in place. Recently, I added a custom JsonConverter to handle date conversions based on timezone. public class CustomInfoConverter : JsonConverter { public overrid ...

Unpacking JSON data with flexible data format

When consuming a JSON API in C#, I encountered an issue where the response's data structure varies based on the number of results returned from the query. To deserialize the response, I am using JSON.NET. The JSON returned by the API is as follows: ...

When using JsonConvert.DeserializeObject from Newtonsoft.Json, the issue of losing a non-printable ASCII character (specifically the group separator) during deserialization may

I have encountered a puzzling issue that I am struggling to resolve. My current task involves deserializing JSON data using Newtonsoft.Json. After inspecting the raw JSON string, I noticed certain character sequences: { '\\', 'u&ap ...

What is the method for including a default value in an optional Enum item within a JSON schema?

I am configuring a JSON schema and looking to include an optional property of Enum type. In the event that the user does not provide a value for this field, I need to set a default value. // schema "properties" : { "Param" : { "type" : "string ...

What is the process for deserializing a JSON-wrapped collection property into a generic class

The Challenge Many APIs that return RESTful JSON data wrap collections within an object. This object typically includes a property indicating the number of items in the collection. Consider the following examples: { "animals": [ {"name": "Ra ...

Unable to retrieve JEnumerable<JToken> child elements

When trying to call the code below in its current state, I am getting ,"Name":"Newtonsoft.Json.Linq.JEnumerable`1[Newtonsoft.Json.Linq.JToken]" as a result. If I modify the relevant line to var property = myObject[propertyNames.Last()].FirstOrDefault(); ...

finding the name of a property in a JSON object

I am working with a class that looks like this: public class Client { [JsonProperty("first_name")] public string FirstName { get; set; } [JsonProperty("last_name")] public string LastName { get; set; } } By using the co ...

Is there a way to utilize JSON.NET to deserialize a collection of JSON objects into an array?

The terms "array" and "objects" might not be exact, but you catch my drift. Looking at the sample for serializing/deserializing a custom object from the official documentation: product.Name = "Apple"; product.ExpiryDate = new DateTime(2008, 12, 28); p ...

Generate HttpRequestHeaders using JObject

One of my challenges has been creating an API for my desktop software to streamline the process of changing HttpClient headers without having to constantly code and rebuild. My main hurdle now is figuring out how to generate a custom list of HttpRequestHea ...

Is there a way to utilize Json.NET to convert a dynamic list of objects with varying names into a List?

Here is a sample JSON format that I am receiving from an external API: "data": { "category_2": { "info": { "detail": 1, "description": "Category 2" } }, "category_7": { "info": { "detail": 3, "description": "Categ ...

How to Deserialize JSON with numerical keys using Json.NET

Is there a way to convert the provided JSON data into an object using Json.NET? The issue I am facing is that the class name must start with a number. One example of such a scenario is when using the Wikipedia article API. By making a request through the ...

Send JSON data to a different URL

I am facing an issue where I need to send some JSON data to a specific URL. However, when I include all my JSON and token information in the request, the system does not seem to receive the JSON content. I have verified that the content is present, but it ...

Dynamic JSON property addition in C# at runtime

Below is an example of my JSON structure: [ { "id": "test.txt", "fields": { "_str.application": [ "Text File" ], "_str.body": [ "asdsadasd" ], "_str.mimetype": [ "text/plain" ] } } ] Is there a way to dynamically add new ...

How to effectively utilize the Twitter API with C# - a comprehensive guide

Seeking guidance on utilizing the Twitter API with C#. Currently struggling to find relevant information. ...

Unraveling nested arrays with Json.NET to create strongly-typed objects

I am currently in the process of developing a client application that needs to handle server responses in JSON format. In order to deserialize these responses, I have opted to utilize Json.NET. Unfortunately, I am unable to simplify or modify these respons ...

Parsing JSON schemas in C#

I have been working on creating my own JSON-to-POCO framework. The approach I have taken involves defining a Json-schema class structured like this: public class JsonSchema { public string type { get; set; } public string title { get; set; } ...

The JsonConverter and EntityData are essential components for processing and

My Azure web service is set up with a database-first EF approach. One of the entities that I have defined in Azure is as follows: public class Company : EntityData { public string CompanyName { get; set; } } This entity inherits the Id property from ...

Converting XML to JSON with JSON.NET and Substituting the @ Symbol

Is there a way to convert XML to JSON using the JSON.NET framework without including the @ sign as an attribute in the JSON output? I want to avoid simply replacing all instances of the @ character, as it may be needed in certain contexts. Is there a Rege ...

Eliminate the escape character ' ' from dynamic JSON by utilizing ExpandoObject and IDictionary

I have been working on generating a dynamic JSON using ExpandoObject and IDictionary. Here is an example of my code: DataTable dt_MappedColumns = new DataTable(); dt_MappedColumns.Columns.Add("Sr.No"); dt_MappedColumns.Columns.Add("TColumnName"); ...

Using Json.NET to Append JObject to existing JArray

Struggling with a seemingly simple piece of code, can't seem to figure it out. JObject obj = new JObject { "Name", "John" }; JArray array = new JArray(); array.Add(obj); // receiving error message: "Can not add Newtonsoft.Json.Linq.JValue to Newtonsoft.J ...

What are the reasons for avoiding the use of PreserveReferencesHandling in Json.NET?

Imagine a farm with cows and farmers. Some farmers are responsible for certain cows, but when PreserveReferencesHandling is utilized, the resulting json size decreases significantly (by 45% in this scenario). public class Farm { public List<Cow> ...

Can anyone guide me on implementing the if-then-else condition within a json schema?

In the latest version of JSON Schema (draft-07), a new feature has been introduced with the if, then, and else keywords. I'm struggling to grasp how to properly utilize these new keywords. Below is the JSON Schema I have created: { "type" ...

Incorporate a new data field within a JSON array

I recently received a JSON string containing an array structured like this: { "Id": 123, "Username": "Sr. X", "Packages": [ { "Name": "Cups", "SupplierId": 1, "ProviderGroupId": 575, "SupplierName": "Foo Cups" }, ...

Leveraging LINQ to JSON for extracting distinct elements from a collection

Having trouble organizing a list of objects/values from a JSON feed using LINQ? Here is what my JSON feed looks like: { "Project":[ { "ID":"XY1212", "Name":"Some Name", "Description":"U.S. No 2 Diesel Retail Prices", ...

Inputting data one row at a time instead of all at once in groups

I am working on a project to extract rows from a large JSON document and insert them into an SQL Server database. The current code I have successfully inserts one row at a time into the table, which seems to be every 1000th row. add-type -path "C:\P ...

When using JsonConvert.DeserializeObject, it may struggle to locate integer members within the JSON object

I'm facing a strange issue where all my classes deserialize properly except for one particular class that contains three int values. When I use the trace writer setting, Json.Net reports that it cannot find the members for this specific class, and I a ...

A guide on using JSONPath to parse a JSON object and filter based on a specific string value within an array nested inside the

Below is a sample JSON that I have listed down. I am looking to create a JSONPath that selects elements where the subject includes "Maths". Please note that I am utilizing Goessner's JSONPath with the Newtonsoft library in C#. { "class":{ "type": ...

Is there a way to serialize a C# object to JSON while maintaining the namespace?

The main class includes a property that is replaced by a new property with a different type in the subclass. This has caused an issue during deserialization. I am unable to change the property name in C# or JSON, but I can potentially add a namespace. nam ...

What methods does Json.NET use to implement dependency injection while deserializing?

Is it possible for Newtonsoft.Json to create an object of a class that has no default constructor and uses dependency injection to pass its dependencies? Take the following example: public class SomeFoo { private readonly IFooDependency _dependency; ...

Interacting with nested arrays and objects in JSON.net

Is there a way to access the nested array like timeseries.shortname in this JSON data? I have attempted it using the code below, but it seems to be encountering an issue. string url = "http://www.pegelonline.wsv.de/webservices/rest-api/v2/stations.json?in ...

What is the best way to verify JSON using JSON.NET when the data types are not consistent?

One of the challenges I'm facing involves a web call that returns JSON data. This response can either be in the form of an array or an object. I specifically want to verify if the returned response is indeed an array. To achieve this, I am utilizin ...

Encountering problems during JSON response deserialization

Upon calling an API, I received the following response as part of a functional test for handling a bad query: HTTP/1.1 400 Bad Request Date: Fri, 24 Jan 2014 17:43:39 GMT Sforce-Limit-Info: api-usage=5/5000 Content-Type: application/json;charset=UTF-8 ...

One approach to returning multiple objects based on a column with multiple values in Dynamic Linq

Situation: I am facing a task where I need to export an excel file containing a list of Parts. Users have the ability to select specific columns and only retrieve data from those selected columns in the exported file. To handle this dynamic report, I have ...

Error 404: MVC4 Ajax request not found

When I look at the browser console, it shows a 404 error for not being able to find the URL. The URL where it's making a POST request is http://localhost:54473/Date/GetArticleName. The method inside the DateController.cs public JsonResult GetArticle ...

Leveraging JSON.Net and C# to extract the main value from JSON content

Apologies for the novice-like question, but after enjoying retirement for some time, I've noticed my memory isn't as sharp as it used to be. Consider this example json string: { "range": [ { "num": 0 }, { "num": 1 }, ...

Use the `DefaultValue` feature on all string properties during serialization

Make sure to set DefaultValue for all string properties. Situation: The classes below are automatically generated, making it tedious to manually add properties. To simplify the process, I created a program that uses regex to add the necessary properties ...