jQuery Ajax call to controller

Question

I\'m new to Ajax and I\'m trying to disable a checkbox if certain items are selected in a dropdown. I need to pass in the mlaId to the GetMlaDeliveryType(int Id) method in

Answer 1

Set data in the Ajax call so that its key matches the parameter on the controller (that is, Id):

data: { Id: mlaId },

Note also that it's a better practice to use @Url.Action(actionName, controllerName) to get an Action URL:

url: '@Url.Action("GetMlaDeliveryType", "Recipients")'

Answer 2

$.ajax({
    type: 'GET',
    url: '/Recipients/GetMlaDeliveryType',
    data: { id: mlaId },
    cache: false,
    success: function(result) {

    }
});

then fix your controller action so that it returns an ActionResult, not a string. JSON would be appropriate in your case:

public string GetMlaDeliveryType(int Id) 
{
    var recipientOrchestrator = new RecipientsOrchestrator();

    // Returns string "Electronic" or "Mail"
    return Json(
        recipientOrchestrator.GetMlaDeliveryTypeById(Id), 
        JsonRequestBehavior.AllowGet
    );
}

Now your success callback will directly be passed a javascript instance of your model. You don't need to specify any dataType parameters:

success: function(result) {
    // TODO: use the result here to do whatever you need to do
}