Losing values in JSON when passing to WEb API Action - json

Question

I have an object (A) with a few properties, one of which is a LIST of abother type (B).
I have a Web API Action that takes in an A object as a parameter.
I am just testing that I can pass this object via JSON son I have a webform with some Javascript on it as follows.......
var tmpData = {
lid: "f8fdb980-ccb8-4a54-9b83-b73dd2d569ca",
aid: "8f6efc68-d747-42a4-b7d4-218951b66a97",
bid: "e9f5e5d2-5d3d-41ac-89dc-7586ec2a5286",
ps: []
};
tmpData['ps'].push({ "cid": "5a664dcc-8281-41f1-b81c-ae49499e12b8", "d": 5, "q": 2 });
tmpData['ps'].push({ "cid": "4e9a30e0-c741-4708-88d7-8db4941c17cc", "d": 10, "q": 2 });
var myJSON = JSON.stringify(tmpData);
//Call the action to get the list in JSON format
url = "http://localhost:64878/home/TakeTestBasketAddItemsRequest";
$.ajax({
url: url,
type: 'POST',
cache: false,
data: myJSON,
success: function (resultantData) {
var s = resultantData;
pResults.innerHTML = s;
}
});
This gets to the action OK and the object has 2 items in the "ps" property.
Howeverm the values in these 2 items are lost and I am left with zeros / uninitialised values.
Whay am I losing the values of the list items?
For clarity - here is my Action also.
[HttpPost]
public ActionResult TakeTestBasketAddItemsRequest(ECodeBasketRequest model)
{
try
{
var sb = new StringBuilder();
sb.AppendLine(String.Format("LocationBridgeId: {0}{1}", model.lid, Environment.NewLine));
sb.AppendLine(String.Format("ApplicationBridgeId: {0}{1}", model.aid, Environment.NewLine));
sb.AppendLine(String.Format("BasketId: {0}{1}", model.bid, Environment.NewLine));
foreach (var p in model.ps)
{
sb.AppendLine(String.Format("CategoryBridgeId: {2} Denomination: {0} Quantity: {1}{3}", p.d, p.q, p.cid, Environment.NewLine));
}
return Content(sb.ToString());
}
catch (Exception ex)
{
return Content(string.Format("Problem: {0}", ex.ToString()));
}
}
As I said, I am just testing at the moment so would love to get to the bottom of this. Thanks in advace,
Ant

Answer 1

Apologies all - but it seems I ommitted the content type....
contentType: "application/json"
It's misleading when some of the object is reconstruucted OK and the rest isn't....but hey ho - It's Friday and it's working..
Well hopefully it will help someone else out.......
So I now find that this works.....
$.ajax({
url: url,
type: 'POST',
cache: false,
**contentType: "application/json",**
data: myJSON,
success: function (resultantData) {
var s = resultantData;
pResults.innerHTML = s;
}