ASP.NET MVC 3 JSON

json

/*
Assuming you have JSON POSTed to your action in the form:

{ "id": 1, "name": "John Smith", "description": "Some description here" } 

*/

// class for the POSTed data
[Serializable]
public class SomeJsonModelFormData
{
    public int id { get; set; }

    public string name { get; set; }

    public string description { get; set; }
}

public class SampleController : Controller
{
    [HttpPost]
    public ActionResult SomeAction(SomeJsonModelFormData json)
    {
        // TODO: do stuff with the json here
        return null;
    }
}

// If using MVC 2
// Youll also need to add this line to your Global.asax Application_Start() method:
// MVC 3 has this enabled by default so this line can be ignored.
 protected void Application_Start()
 {
    // register your routes here...
    // the following line
    // Enables action methods to send and receive JSON-formatted text and to model-bind the JSON text to parameters of action methods.
    // See http://msdn.microsoft.com/en-us/library/system.web.mvc.jsonvalueproviderfactory%28v=vs.98%29.aspx
    ValueProviderFactories.Factories.Add(new JsonValueProviderFactory());
}