Newtonsoft.json Code

Serialization of

Product Product = new product ();p roduct. Expirydate = new DateTime (2008, 12, 28); Jsonserializer serializer = new Jsonserializer (); serializer. Converters.add (New Javascriptdatetimeconverter ()); serializer. nullvaluehandling = nullvaluehandling.ignore;using (StreamWriter sw = new StreamWriter (@ "C:\json.txt")) using ( Jsonwriter writer = new JsonTextWriter (sw)) {    serializer. Serialize (writer, product);    {"Expirydate": New Date (1230375600000), "Price": 0}}

Jsonreader Read JSON string

string @" {"Input" ":" "Value" "," "Output" ":" "Result" "} "  New jsontextreader (new  StringReader (Jsontext));  while (reader. Read ()) {    "\t\t""\t\t" + reader. Value);}

Jsonwriter Writing strings

StringWriter SW =NewStringWriter (); Jsonwriter writer=NewJsonTextWriter (SW); writer. Writestartobject (); writer. Writepropertyname ("input"); writer. WriteValue ("value"); writer. Writepropertyname ("Output"); writer. WriteValue ("result"); writer. Writeendobject (); writer. Flush ();stringJsontext =SW. Getstringbuilder (). ToString (); Console.WriteLine (jsontext);

Reading and writing strings using Jobject

Jobject Jo = Jobject.parse (Jsontext); string[] values = Jo. Properties (). Select (item = Item. Value.tostring ()). ToArray ();

Using Newtonsoft.json;

Using Newtonsoft.Json.Linq;

String jsontext = "[{' A ': ' AAA ', ' B ': ' BBB ', ' C ': ' CCC '},{' a ': ' Aaa2 ', ' B ': ' Bbb2 ', ' C ': ' CCC2 '}]";

Jarray ja = (jarray) jsonconvert.deserializeobject (Jsontext);

Jobject o = (jobject) ja[1];

Console.WriteLine (o["a"]);

Console.WriteLine (ja[1]["a"]);

Jsonserializer read-write objects (based on Jsonwriter and Jsonreader)

 string  jsonArrayText1 =  " [{' A ': ' A1 ', ' B ': ' B1 '},{' a ': ' A2 ', ' B ': ' B2 '}]    = (Jarray) jsonconvert.deserializeobject (JSONARRAYTEXT1);  string  ja1a = Ja[ " a  "   //  or  Jobject o = (jobject) ja[";  string  oa = O[ " a   "]. ToString (); 

Nested formats

String Jsontext ={\ "beijing\": {\ "zone\": \ "Haidian \", \ "zone_en\": \ "Haidian\"}}"; Jobject Jo = (jobject) jsonconvert.deserializeobject (jsontext);  String zone = jo["Beijing" ["zone"]. ToString (); string zone_en = jo["Beijing" ["zone_en"]. ToString ();                   

Custom class Project

Class project{Public    string Input {get; set;}    public string Output {get; set;}}

Project P = new Project () {Input = "stone", Output = "Gold"}; Jsonserializer serializer = new Jsonserializer (); StringWriter SW = new StringWriter (); serializer. Serialize (new JsonTextWriter (SW), p); Console.WriteLine (SW. Getstringbuilder (). ToString ()); StringReader sr = new StringReader (@ "{" "Input" ":" "Stone" "," "Output" ":" "Gold" "}"); Project P1 = (project) serializer. Deserialize (new JsonTextReader (SR), typeof (Project)); Console.WriteLine (P1. Input + "=" + p1. Output);

contractual approach : using DataContractJsonSerializer or jsonreaderwriterfactory provided by System.Runtime.Serialization.dll to achieve

Project p =NewProject () {Input ="Stone", Output ="Gold"};D Atacontractjsonserializer Serializer=NewDataContractJsonSerializer (P.gettype ());stringJsontext;using(MemoryStream stream =NewMemoryStream ()) {Serializer.    WriteObject (Stream, p); Jsontext=Encoding.UTF8.GetString (stream.    ToArray ()); Console.WriteLine (Jsontext);}using(MemoryStream ms =NewMemoryStream (Encoding.UTF8.GetBytes (jsontext))) {DataContractJsonSerializer Serializer1=NewDataContractJsonSerializer (typeof(Project)); Project P1=(Project) serializer1.    ReadObject (MS); Console.WriteLine (P1. Input+"="+P1. Output);}

Note here that the project classes and Members here are related to the attribute:

[DataContract] class project{    [DataMember]    publicstringgetset;    [DataMember]      Public string Get Set ; }}

Practical Reference:
JSON validation Tool: http://jsonlint.com/
JSON Concise Tutorial: http://www.w3school.com.cn/json/
Newtonsoft.json class Library Download: http://json.codeplex.com/

Newtonsoft.json Code