Turn C# object to json string, how to handle double quotation -

i'm using newtonsoft.json parse object json string. returns somethink this:

{\"code\":-1,\"idname\":\"empty\",\"idvalue\":0,\"message\":\"failed,can not read object body\"} 

it not valid json string think, can work me out?

what want this:

{"code":-1,"idname":"empty\",\"idvalue\":0,\"message\":\"failed,can not read object body\"}   

public static class commonutility {     // format response string     public static string formatresponsestring(int code, string idname, long idvalue, string message)     {         responsestring rs = new responsestring();         rs.code = code;         rs.idname = idname;         rs.idvalue = idvalue;         rs.message = message;          string json = jsonconvert.serializeobject(rs);         return json;     } }  public class responsestring {     public int code;     public string idname;     public long idvalue;     public string message; } 

edit: actual json response fidder textview can see:

"{\"code\":-1,\"idname\":\"empty\",\"idvalue\":0,\"message\":\"failed,can not read object body\"}" 

the scenario this: put serialized json string in web api createresponse method. can see response string in fidder said in question not valid json

request.createresponse(httpstatuscode.created, returnstring); 

returnstring json string serialized responsestring object

i donot think valid string , wrong?

finally, fix this. share guys.

root cause:
guess is double serialization issue. seems asp.net web api 2 framework serialize automatically us. , why serializeobject , debug.write(json) string, works well.

string json = jsonconvert.serializeobject(rs);      debug.write(json); 

but after fiddler invoke web api, web apireturned response invalid json(\") said above. happened same on other clients such ios, android devices.

because web api serialization me, , explicit serialization string json = jsonconvert.serializeobject(rs); means run parsejson not needed.

per question here, directly put object not serialized in createresponse method. request.createresponse(httpstatuscode.created, rs); , returns valid json fidder , other clients.

how fix problem: request.createresponse(httpstatuscode.created, rs);

public static class commonutility     {         // format response string         public static responsestring formatresponsestring(int code, string idname, long idvalue, string message)         {             responsestring rs = new responsestring();             rs.code = code;             rs.idname = idname;             rs.idvalue = idvalue;             rs.message = message;              return rs ;         }     }      public class responsestring     {         public int code;         public string idname;         public long idvalue;         public string message;     } 

and in controller

responsestring rs = new responsestring();                         rs = commonutility.formatresponsestring(0, "pacelid", returnpacelid, "succeed,created items in db success");                         return request.createresponse(httpstatuscode.created, rs);