Parameter passing in an MVC Controller - asp.net-mvc

Question

I have the following ActionResult in my controller
[HttpGetAttribute]
public ActionResult _UpdateAlertNote(int recordId)
{
DealActionUpdateAlertNoteViewModel vm = new DealActionUpdateAlertNoteViewModel();
dtDeal_v10_r1.Manager objMan = new dtDeal_v10_r1.Manager(ref mobjSecurity);
dtDeal_v10_r1.Deal objDeal = default(dtDeal_v10_r1.Deal);
objDeal = objMan.GetDealObject(recordId, true);
vm.Message = objDeal.AlertMessage;
vm.IsDefaultStyle = objDeal.Alert_UseDefaultStyle;
vm.BackgroundColor = objDeal.Alert_BackgroundColor;
vm.FontColor = objDeal.Alert_FontColor;
vm.DealId = recordId;
return PartialView(vm);
}
Also the following ActionResult
[HttpPost]
public ActionResult _UpdateAlertNote(DealActionUpdateAlertNoteViewModel vm)
{
dtDeal_v10_r1.Manager objMan = new dtDeal_v10_r1.Manager(ref mobjSecurity);
objMan.UpdateAlertMessage(vm.DealId, vm.Message, vm.IsDefaultStyle, vm.FontColor, vm.BackgroundColor);
return this.PartialView("_action", vm.DealId);
}
When I execute this code it the "DealId" comes up as 0 in the Post.
I checked the Get and the DealId is being stored in the vm.DealId but is not passed through to the Post method.
I am not sure why it isn't passing could someone help me out with this.
****EDIT json added***
DealerSocket.TakeAction.updateDealAlertNote = function () {
var controller = "/DealAction/_UpdateAlertNote?mDeal_ID=";
var formId = "_UpdateDealAlertNoteFormElement";
DealerSocket.TakeAction.PostActionAndRefresh(formId, controller);
};

Answer 1

When you are posting an HTML Form element to a POST action, you need to make sure the value you pass to the view is stored in a Form element.
In this case of yours you will need something like:
<input type="hidden" value="#vm.DealId" />
within the <form> tag that you are Posting to the action.
Only elements inside the <form> tag will be serialized and sent to the Action.