Parse JSON using System.Json

Hi,

I use System.Json and the following code to parse a JSON string in the core part of my app :

var json = JsonValue.Parse(myStringJson);
var data = json["data"];

foreach (var dataItem in data)
{
    string myValue = dataItem.Value["myKey"]; //Here is the compilation error
    //...
})

Everything is OK when I test it in a C# class Library project. But when I try to use it in a Xamarin Android Library Project, I have a compilation error.

The compilation return the following error : 'object' does not contain a definition for 'Value' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?).

If I use :

foreach (KeyValuePair<Object, JsonValue> dataItem in data)

... The compilation is OK but I have an illegal cast exception during the execution.

What is the solution to use System.Json (I don't want to use any other component like JSON.NET) ?

Note : the JSON comes from the Facebook graph API and this is its structure :

{
    "data" : [{
            "id" : "xxxxxxxxxxxxx",
            "from" : {
                "id" : "xxxxxxxxxxxxx",
                "category" : "xxx",
                "name" : "xxx"
            },
            "message" : "the message...",
            "privacy" : {
                "value" : ""
            },
            "type" : "status",
            "status_type" : "mobile_status_update",
            "application" : {
                "name" : "Facebook for Android",
                "namespace" : "xxxx",
                "id" : "xxxx"
            },
            "created_time" : "2013-06-01T16:45:04+0000",
            "updated_time" : "2013-06-02T08:32:01+0000",
         [...]

I want to retrieve the message, name, type and created_time tags.

Thanks in advance :)