What is the simplest C function to parse a JSON string into an object

Question

What is the simplest C  function to parse a JSON string into a object and display it  C  XAML WPF    for example object with 2 arrays -  arrA and arrB

User · Answer

You should create a structure that represents JSON keys (in case if you exactly know it) and then you can easily deserialize JSON string into your structure. In my examle I've deserialized a response from Google Cloud Message server:

class templateResponse
{
    public String multicast_id;
    public String success;
    public String failure;
    public String canonical_ids;
    public Result[] results;

    public class Result
    {
        public String message_id;
        public String registration_id;
        public String error;
    };
}

incoming JSON was:

"\"multicast_id\":7400896764380883211,\"success\":1,\"failure\":0,\"canonical_ids\":0,\"results\":[{\"message_id\":\"0:1351777805148960%39895cf0f9fd7ecd\"}]}"

So, use

templateResponse result = new JavaScriptSerializer().Deserialize<templateResponse>(json);

and you will get deserialized result object

User · Answer

I would echo the Json NET library  which can transform the JSON response into a XML document  With the XML document  you can easily query with XPath and extract the data you need  I find this pretty useful

User · Answer

DataContractJsonSerializer serializer        new DataContractJsonSerializer typeof YourObjectType     YourObjectType yourObject    YourObjectType serializer ReadObject jsonStream     You could also use the JavaScriptSerializer  but DataContractJsonSerializer is supposedly better able to handle complex types   Oddly enough JavaScriptSerializer was once deprecated  in 3 5  and then resurrected because of ASP NET MVC  in 3 5 SP1   That would definitely be enough to shake my confidence and lead me to use DataContractJsonSerializer since it is hard baked for WCF

User · Answer

I think this is what you want   JavaScriptSerializer JSS   new JavaScriptSerializer    T obj   JSS Deserialize lt T gt  String

User · Answer

Just use the Json NET library  It lets you parse Json format strings very easily   JObject o   JObject Parse            something     value          jagged                    someother     value2               string something    string o  something      Documentation  Parsing JSON Object using JObject Parse

[c#] What is the simplest C# function to parse a JSON string into an object?

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