knockout dates being reset on post to mvc controller

Question

I have a knockout/mvc3 application. I am passing the date back to a controller.

controller

public ActionResult PackageUpdate(Package upd         


        

Answer 1

Thanks to Matt Johnson I was able to change the way the dates were being sent to the browser. It was a relativly easy fix taken from Perishable Dave answer to a similar problem with ASP.NET MVC JsonResult Date Format

My JsonNetResult class now look like

public class JsonNetResult : ActionResult
{
    private const string _dateFormat = "yyyy-MM-dd hh:mm:ss";

    public Encoding ContentEncoding { get; set; }
    public string ContentType { get; set; }
    public object Data { get; set; }

    public JsonSerializerSettings SerializerSettings { get; set; }
    public Formatting Formatting { get; set; }

    public JsonNetResult()
    {
        SerializerSettings = new JsonSerializerSettings();
        Formatting = Formatting.Indented;
        SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Serialize;
    }

    public override void ExecuteResult(ControllerContext context)
    {
        if (context == null)
            throw new ArgumentNullException("context");

        HttpResponseBase response = context.HttpContext.Response;

        response.ContentType = !string.IsNullOrEmpty(ContentType)
          ? ContentType
          : "application/json";

        if (ContentEncoding != null)
            response.ContentEncoding = ContentEncoding;

        if (Data != null)
        {
            var isoConvert = new IsoDateTimeConverter();
            isoConvert.DateTimeFormat = _dateFormat;

            JsonTextWriter writer = new JsonTextWriter(response.Output) { Formatting = Formatting };

            JsonSerializer serializer = JsonSerializer.Create(SerializerSettings);
            serializer.Converters.Add(isoConvert);

            serializer.Serialize(writer, Data);

            writer.Flush();
        }
    }
}

I have added the iso date converter to the serizer

in the controller you invoke it by:

public JsonNetResult YourAction(){
    //your logic here
    return JsonNetResult(/*your object here*/);
}

When I wrote this I did not know about Web API. It is worth a look as it will do a lot of the heavy lifting when it comes to serialization of your objects. Checkout Getting Started with ASP.NET Web API 2