MVC3 RC2 JSON Post Binding not working correctly
The problem is on the client side! I didn't have the contentType set.
$.ajax({ url: location.href, type: "POST", data: ko.toJSON(this), datatype: "json", **contentType: "application/json charset=utf-8",** success: function (data) { alert("success"); }, error: function (data) { alert("error"); }});