converting list to json format - quick and easy way

Question

Let s say I have an object MyObject that looks like this   public class MyObject     int ObjectID  get set     string ObjectString  get set        I have a list of MyObject and I m looking to convert it in a json string with a stringbuilder  I know how to create a JavascriptConverter and create a json string by passing a list and having the converter build the string but in this particular case I m looking to avoid the overhead and go straight to a json string with a foreach loop on the list like this   StringBuilder JsonString   new StringBuilder     foreach MyObject TheObject in ListOfMyObject         I ve tried to use this method by appending with commas and quotes but it hasn t worked out  yet     Thanks for your suggestions

User · Accepted Answer

I ve done something like before using the JavaScript serialization class   using System Web Script Serialization    And   JavaScriptSerializer jss   new JavaScriptSerializer     string output   jss Serialize ListOfMyObject   Response Write output   Response Flush    Response End

User · Answer

3 years of experience later  I ve come back to this question and would suggest to write it like this   string output   new JavaScriptSerializer   Serialize ListOfMyObject     One line of code

User · Answer

For me  it worked to use Newtonsoft Json   using Newtonsoft Json         var output   JsonConvert SerializeObject ListOfMyObject

User · Answer

I would avoid rolling your own and use either   System Web Script JavascriptSerializer  or  JSON net  Both will do an excellent job

User · Answer

You could return the value using return JsonConvert SerializeObject objName   And send it to the front end

User · Answer

why reinvent the wheel   use microsoft s json serialize or a 3rd party library such as json NET

User · Answer

I prefer using linq-to-json feature of JSON NET framework  Here s how you can serialize a list of your objects to json   List lt MyObject gt  list   new List lt MyObject gt      Func lt MyObject  JObject gt  objToJson       o   gt  new JObject              new JProperty  ObjectId   o ObjectId                new JProperty  ObjectString   o ObjectString     string result   new JObject new JArray list Select objToJson    ToString      You fully control what will be in the result json string and you clearly see it just looking at the code  Surely  you can get rid of Func lt T1  T2 gt  declaration and specify this code directly in the new JArray   invocation but with this code extracted to Func lt  gt  it looks much more clearer what is going on and how you actually transform your object to json  You can even store your Func lt  gt  outside this method in some sort of setup method  i e  in constructor

User · Answer

If you are using WebApi  HttpResponseMessage is a more elegant way to do it public HttpResponseMessage Get         return Request CreateResponse HttpStatusCode OK  ListOfMyObject

[c#] converting list to json format - quick and easy way

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