[Fork] [Fork] https://stackoverflow.com/questions/58501943/how-to-make-json-serialize-ignore-dictionary-keys

CSharp · Console

/Program.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization.Formatters;
using System.IO;
using System.Data;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Reflection;

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;	

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

//https://stackoverflow.com/questions/58501943/how-to-make-json-serialize-ignore-dictionary-keys

	public class RootObject
	{
		public IDictionary<string, string> CustomAttributes { get; set; }		
	}

	[JsonDictionary(NamingStrategyType = typeof(DefaultNamingStrategy))]
	public class VerbatimDictionary<TKey, TValue> : Dictionary<TKey, TValue>
	{
	}

    class TestClass
    {
        public static void Test()
        {
			var root = new RootObject
			{
				CustomAttributes = new VerbatimDictionary<string, string>()
				{
					{"Custom Attribute 1", "1"},
					{"CustomAttribute 2", "2"}
				}
			};
			
			var settings = new JsonSerializerSettings
			{
				ContractResolver = new CamelCasePropertyNamesContractResolver(),
			};
			var json = JsonConvert.SerializeObject(root, Formatting.Indented, settings);
			
			Console.WriteLine(json);
			
			Assert.IsTrue(((JObject)JToken.Parse(json)["customAttributes"]).Properties().Select(p => p.Name).SequenceEqual(root.CustomAttributes.Keys));
			Assert.IsTrue(JsonConvert.DeserializeObject<RootObject>(json, settings).CustomAttributes.Keys.SequenceEqual(root.CustomAttributes.Keys));
		}	
	}

	public class Program
	{
		public static void Main()
		{
			Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());
			Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);
			Console.WriteLine();

			try
			{
				TestClass.Test();
			}
			catch (Exception ex)
			{
				Console.WriteLine("Failed with unhandled exception: ");
				Console.WriteLine(ex);
				throw;
			}
		}
		
		public static string GetNetCoreVersion()
		{
			//https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be
			//
			var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;
			var assemblyPath = assembly.CodeBase.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);
			int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");
			if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)
				return assemblyPath[netCoreAppIndex + 1];
			return null;
		}
	}