Self referencing loop detected in ASP.NET Core [duplicate]

There is no difference in the way self-referencing loops are handled in ASP.NET 4 compared to ASP.NET Core (previously Asp.Net 5). The principles outlined in the question you referenced in your post still apply. However, setting this property in ASP.NET Core is obviously slightly different, given the new method of configuring and bootstrapping the app: … Read more

JSON.Net – Change $type field to another name? “I would rather keep $type hard coded and consistent.” Consistent with what I wonder? I would rather not – I think this is too specific to me and I don’t want to go overboard with settings. At some point I will probably implement this – – allowing people to read/write there own … Read more

Json.NET get nested jToken value

You can use SelectToken() to select a token from deep within the LINQ-to-JSON hierarchy for deserialization. In two lines: var token = jObj.SelectToken(“”); var su = token == null ? null : token.ToObject<Solr_User []>(); Or in one line, by conditionally deserializing a null JToken when the selected token is missing: var su = (jObj.SelectToken(“”) ?? … Read more

JObject.Parse modifies end of floating point values

@Ilija Dimov is correct–JSON.NET parses JSON floats as doubles by default. If you still want to use JObject instead of creating a full blown POCO for deserialization, you can use a JsonTextReader and set the FloatParseHandling option: var reader = new JsonTextReader(new StringReader(clientString)); reader.FloatParseHandling = FloatParseHandling.Decimal; JObject obj = JObject.Load(reader); Console.WriteLine(obj[“max”].Value<decimal>()); // 1214.704958677686 – how to add property $type ONLY on root object

If you require the “$type” property on your root object and are OK with it appearing on nested polymorphic objects and arrays if required, use the following overload along with TypeNameHandling.Auto: JsonConvert.SerializeObject(Object, Type, JsonSerializerSettings). From the docs: public static string SerializeObject( Object value, Type type, JsonSerializerSettings settings ) type Type: System.Type The type of the … Read more ContractResolver vs. JsonConverter

Great question. I haven’t seen a clear piece of documentation that says when you should prefer to write a custom ContractResolver or a custom JsonConverter to solve a particular type of problem. They really do different things, but there is some overlap between what kinds of problems can be solved by each. I’ve written a … Read more

JSON.NET: Why Use JToken–ever?

From the standard, JSON is built out of the following five types of token: object: an unordered set of name/value pairs. array: an ordered collection of values. value: a string in double quotes, or a number, or true or false or null, or an object or an array. These structures can be nested. string number. … Read more

How To Deserialize Dynamic dirty json data in node js posted by react [duplicate]

Below shows you one approach to consider. The key is the use of the StudentDetails class to define the necessary properties of your individual students (as well as the Dictionary – so that it is keyed by the string (e.g. “John”)). using System; using System.Collections.Generic; using Newtonsoft.Json; namespace Sample { public class StudentDetails { public … Read more