system.text.json

问题 I'm trying to use the System.Text.Json.JsonSerializer to deserialize the model partially, so one of the properties is read as string that contains the original JSON. public class SomeModel { public int Id { get; set; } public string Name { get; set; } public string Info { get; set; } } The example code var json = @"{ ""Id"": 1, ""Name"": ""Some Name"", ""Info"": { ""Additional"": ""Fields"", ""Are"": ""Inside"" } }"; var model = JsonSerializer.Deserialize<SomeModel>(json); should produce the

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 14 days ago . I have a free-form JsonDocument which contains a JsonProperty with name internalName . My problem is that that I don't have model to parse it into (because there is no predefined JSON schema) and the property can appear at any level, parent, child etc. How would one go about

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 14 days ago . I have a free-form JsonDocument which contains a JsonProperty with name internalName . My problem is that that I don't have model to parse it into (because there is no predefined JSON schema) and the property can appear at any level, parent, child etc. How would one go about

问题 We've got an API, which simply posts incoming JSON documents to a message bus, having assigned a GUID to each. We're upgrading from .Net Core 2.2 to 3.1 and were aiming to replace NewtonSoft with the new System.Text.Json library. We deserialise the incoming document, assign the GUID to one of the fields and then reserialise before sending to the message bus. Unfortunately, the reserialisation is failing with the exception Operation is not valid due to the current state of the object . Here's

问题 We've got an API, which simply posts incoming JSON documents to a message bus, having assigned a GUID to each. We're upgrading from .Net Core 2.2 to 3.1 and were aiming to replace NewtonSoft with the new System.Text.Json library. We deserialise the incoming document, assign the GUID to one of the fields and then reserialise before sending to the message bus. Unfortunately, the reserialisation is failing with the exception Operation is not valid due to the current state of the object . Here's

问题 Using JsonSerializer.Serialize(obj); will produce a escaped string, but I want the unescaped version. for example: using System; using System.Text.Json; public class Program { public static void Main() { var a = new A{Name = "你好"}; var s = JsonSerializer.Serialize(a); Console.WriteLine(s); } } class A { public string Name {get; set;} } will produce a string {"Name":"\u4F60\u597D"} but I want {"Name":"你好"} I created a code snippet at https://dotnetfiddle.net/w73vnO please help me. 回答1: You

问题 I have this json {"id":"48e86841-f62c-42c9-ae20-b54ba8c35d6d"} How do I get the 48e86841-f62c-42c9-ae20-b54ba8c35d6d out of it? All examples I can find show to do something like var o = System.Text.Json.JsonSerializer.Deserialize<some-type>(json); o.id // <- here's the ID! But I don't have a type that fits this definition and I don't want to create one. I've tried deserializing to dynamic but I was unable to get that working. var result = System.Text.Json.JsonSerializer.Deserialize<dynamic>

问题 How to serialize Enum fields to String instead of an Int in ASP.NET MVC Core 3.0? I'm not able to do it the old way. services.AddMvc().AddJsonOptions(opts => { opts.JsonSerializerOptions.Converters.Add(new StringEnumConverter()); }) I'm getting an error: cannot convert from 'Newtonsoft.Json.Converters.StringEnumConverter' to 'System.Text.Json.Serialization.JsonConverter' 回答1: New System.Text.Json serialization ASP.NET MVC Core 3.0 uses built-in JSON serialization. Use System.Text.Json

问题 Using the System.Text.Json serializer capabilities in .NET Core, how can I specify a custom value for an enum value, similar to JsonPropertyName ? For example: public enum Example { Trick, Treat, [JsonPropertyName("Trick-Or-Treat")] // Error: Attribute 'JsonPropertyName' is not valid on this declaration type. It is only valid on 'property, indexer' declarations. TrickOrTreat } 回答1: This is not currently supported out of the box in .net-core-3.0 . There is currently an open issue Support for

问题 Using the System.Text.Json serializer capabilities in .NET Core, how can I specify a custom value for an enum value, similar to JsonPropertyName ? For example: public enum Example { Trick, Treat, [JsonPropertyName("Trick-Or-Treat")] // Error: Attribute 'JsonPropertyName' is not valid on this declaration type. It is only valid on 'property, indexer' declarations. TrickOrTreat } 回答1: This is not currently supported out of the box in .net-core-3.0 . There is currently an open issue Support for