First of all, there’s no such thing as a JSON object. What you’ve got in your question is a JavaScript object literal (see here for a great discussion on the difference). Here’s how you would go about serializing what you’ve got to JSON though: I would use an anonymous type filled with your results type: … Read more
The simplest way is deserialize array of key-value pairs to IDictionary<string, string>: public class SomeData { public string Id { get; set; } public IEnumerable<IDictionary<string, string>> Data { get; set; } } private static void Main(string[] args) { var json = “{ \”id\”: \”123\”, \”data\”: [ { \”key1\”: \”val1\” }, { \”key2\” : \”val2\” } … Read more
as @dbc described in the comment, you can simply use the indexer to make this happen. var item = JObject.Parse(“{ ‘str1’: ‘test1’ }”); item[“str1”] = “test2”; item[“str3”] = “test3”; see the fiddle for more details
I use a custom Contract Resolver to limit which of my properties to serialize. This might point you in the right direction. e.g. /// <summary> /// json.net serializes ALL properties of a class by default /// this class will tell json.net to only serialize properties if they MATCH /// the list of valid columns passed … Read more
Ended up creating a converter: public class BoolConverter : JsonConverter { public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { writer.WriteValue(((bool)value) ? 1 : 0); } public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { return reader.Value.ToString() == “1”; } public override bool CanConvert(Type objectType) { return objectType == typeof(bool); } … Read more
There is a much simpler solution for that. Just treat the items of the JArray as JObject. Let’s say we have such array of JSON objects: JArray jArray = JArray.Parse(@”[ { “”name””: “”Croke Park II””, “”url””: “”http://twitter.com/search?q=%22Croke+Park+II%22″”, “”promoted_content””: null, “”query””: “”%22Croke+Park+II%22″”, “”events””: null }, { “”name””: “”Siptu””, “”url””: “”http://twitter.com/search?q=Siptu””, “”promoted_content””: null, “”query””: “”Siptu””, “”events””: null … Read more
Yes you need to use JsonSerializerSettings.NullValueHandling = NullValueHandling.Ignore. But because structs are value types you need to mark Field2, Field3 nullable to get the expected result: public struct structA { public string Field1; public structB? Field2; public structB? Field3; } Or just use classes instead of structs. Documentation: NullValueHandling Enumeration
I found the answer, just need to add the following attribute as well: [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)] In your example: class Cat { public Cat(string name, int age) { Name = name; Age = age; } public string Name { get; private set; } [DefaultValue(5)] [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)] public int Age { get; private set; } … Read more
To check whether a property exists on a JObject, you can use the square bracket syntax and see whether the result is null or not. If the property exists, a JToken will be always be returned (even if it has the value null in the JSON). JToken token = jObject[“param”]; if (token != null) { … Read more
If you are disturbed by performance hit of the reflection you can “cache” it using generic static classes and private static fields in them (which are not shared) and some compilation magic using expression trees. For example (modified your code to make it compile): public static class Validator<T> { private static readonly Dictionary<string, Func<T, object>> … Read more