c# how deserialize json array

Question

In C# i receive a json response:

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
     var result = streamReader.ReadToEnd();
     ...
}

The value of result is:

"[\"[{\\\"retcode\\\":0}]\"]"

Now if i try to deserialize it into my object:

var myobj = js.Deserialize<List<CustomerReturnCode>>(result);

where:

public class CustomerReturnCode
{
    public string retcode { get; set; }
}

I get the following error:

"Cannot convert object of type 'System.String' to type 'CustomerReturnCode'"}

How can i deserialize the response type? (it's an array: in this example it has only one item)

Answer 1

Your web service is returning an array of arrays. You cannot deserialize that directly because the JavascriptSerializer doesn't know how to do that.

From a discussion here it can be done using a custom JsonConverter class, using JArray.

Or I guess if you have access to modify the web service, change it to return the object in a different format.

Answer 2

   var json="[\"[{\\\"retcode\\\":0}]\"]";
    Dynamic CRC= new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<CustomerReturnCode >(json);