json.net

问题 I have an object that is created by Newtonsoft's JSON serializer. I need to get the JSON string that was used to create the object. How do I serialize the object into a simple JSON string? 回答1: Try this: public string jsonOut() { // Returns JSON string. return JsonConvert.SerializeObject(this); } 来源： https://stackoverflow.com/questions/6690395/newtonsoft-object-%e2%86%92-get-json-string

问题 I have an object that is created by Newtonsoft's JSON serializer. I need to get the JSON string that was used to create the object. How do I serialize the object into a simple JSON string? 回答1: Try this: public string jsonOut() { // Returns JSON string. return JsonConvert.SerializeObject(this); } 来源： https://stackoverflow.com/questions/6690395/newtonsoft-object-%e2%86%92-get-json-string

问题 I have some JSON that is sent to my webservice that looks something like this. { root: [ { "key": "foo1", "val": "150" }, { "key": "foo2", "val": "220" }, { "key": "foo3", "val": "300" }, { "key": "dataid", "val": "2289" } ] } Say I wanted to return the value of val where key is equal to "dataid" . How would I do this using the JSON.Net library? I know I can loop through the values to find it but it is likely that the object will be far bigger than this example here. Thanks in advance 回答1:

问题 I have this JSON: { "client_id": "26075235", "client_version": "1.0.0", "event": "app.uninstall", "timestamp": 1478741247, "data": { "user_id": "62581379", "site_id": "837771289247593785", "platform_app_id": "26075235" } } I parse it into a JSON.NET JObject and I can successfully access the first level of values using e.g. (string)RequestBody.SelectToken("client_id") How do I access the value of "user_id" using a JPath expression (or by accessing a child object of the JSON.NET JObject)? This

问题 I've got the following model: public enum Status { [Display(Name = "Awaiting Approval")] AwaitingApproval, Rejected, Accepted, } I use this enum in a model like this: public class Docs { [Key] public int Id { get; set; } [JsonConverter(typeof(StringEnumConverter))] public Status Status { get; set; } } Now this works fine; the serializer returns the string equivalent of the enum. My question is how to tell JSON.NET to take the Display attribute instead of the string ? 回答1: You should try using

问题 I always had the impression that the JSON serializer actually traverses your entire object's tree, and executes the custom JsonConverter's WriteJson function on each interface-typed object that it comes across - not so. I have the following classes and interfaces: public interface IAnimal { string Name { get; set; } string Speak(); List<IAnimal> Children { get; set; } } public class Cat : IAnimal { public string Name { get; set; } public List<IAnimal> Children { get; set; } public Cat() {

问题 I always had the impression that the JSON serializer actually traverses your entire object's tree, and executes the custom JsonConverter's WriteJson function on each interface-typed object that it comes across - not so. I have the following classes and interfaces: public interface IAnimal { string Name { get; set; } string Speak(); List<IAnimal> Children { get; set; } } public class Cat : IAnimal { public string Name { get; set; } public List<IAnimal> Children { get; set; } public Cat() {

问题 I have a JsonConverter that, depending on an instance specific flag, needs to either run custom serialization logic run the default Json.NET serialization logic How can the default Json.NET serialization logic be ran from a JsonConverter ? Thanks 回答1: Here is an example. Say your class to serialize looks like this: class Foo { public bool IsSpecial { get; set; } public string A { get; set; } public string B { get; set; } public string C { get; set; } } The IsSpecial flag is used to control

问题 I am new to json format. I want to create a following json string by using C# and json.net package. This is my target Json format: { "GetQuestions": { "s1":"Q1,Q2", "s2":"Q1,Q3", "s3":"Q4,Q5" } } Here, i am storing each students questions.But sometimes, the total number of students may be vary.for example it may be s1,s2 only or s1,s2,s3,s4.... This is calculated at runtime in C#.So, i want to create the json string depending on the student list.... Please guide me to get out of this issue?

问题 I have a JObject (I'm using Json.Net) that I constructed with LINQ to JSON (also provided by the same library). When I call the ToString() method on the JObject , it outputs the results as formatted JSON. How do I set the formatting to "none" for this? 回答1: Call JObject's ToString(Formatting.None) method. Alternatively if you pass the object to the JsonConvert.SerializeObject method it will return the JSON without formatting. Documentation: Write JSON text with JToken.ToString 回答2: You can