Send Model with Ajax instead FormCollection

gistfile1.md

Helper

public static class HTMLHelperExtensions
{
    public static MvcHtmlString ToJson(object obj)
    {
        var serializer = new JavaScriptSerializer();
        return MvcHtmlString.Create(serializer.Serialize(obj));
    }
}

Javascript

var model = '@HTMLHelperExtensions.ToJson(Model.PruefmailingEmpfaenger)';
$.ajax(
{
    type: "POST",
    url: editPruefAdressModalUrl,
    data: { model: JSON.stringify(model) },
    async: false,
    success: function (data) {
       //...
    }
});

Controller

public ActionResult EditPruefAdress(string model)
{
    var entity = JsonConvert.DeserializeObject<PruefmailingEmpfaenger>(model);
    //...
}