How check JToken is null?

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).

What is JToken?

JToken is the abstract base class of JObject , JArray , JProperty , and JValue , which represent pieces of JSON data after they have been parsed. JsonToken is an enum that is used by JsonReader and JsonWriter to indicate which type of token is being read or written.

What is JArray C#?

Represents a JSON array. Newtonsoft.Json.Linq.

What is JValue?

Represents a value in JSON (string, integer, date, etc). Newtonsoft.Json.Linq.

How to check a jtoken in a jobject?

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) { // the “param” property exists } If you have a JToken in hand and you want to see if it is non-empty, well, that depends on what type of JToken it is and how you define “empty”.

How to get value from jtoken that may not exist?

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How to get the width of a jtoken?

And you can easily fix that by using the null conditional operator: width = jToken?.Value (“width”) ?? 100;. – svick Jan 11 ’18 at 11:50 This way you can get the value of not only the basic types but also complex objects. Here is a sample

Which is example of jtoken empty in Csharp?

Here are the examples of the csharp api class Newtonsoft.Json.Linq.JToken.Empty () taken from open source projects. By voting up you can indicate which examples are most useful and appropriate. 1. Example static public double? DoubleNull (this JToken jToken)