How to call nested ajax call and send object data to controller in ASP.Net MVC 5

问题

I have two controller

1. Settings Controller

   Action - GetAvailableLocationsFor

2. HomeController

   Action - Index

Steps I want to acheive

1. Make ajax call to GetAvailableLocationsFor and then get the object data from success call back. No view is required for this Action.
2. Now with the object data received make another ajax call to Index Action in HOMECONTROLLER and pass the object there.

Below is what I could achieve.

HomeController - GetAvailableLocationsFor

public ActionResult GetAvailableLocationsFor(int accountId, int groupId)
        {
            FullConfigMV configData = SetLoader.GetSettings(accountId, groupId);
           return // HOW TO RETURN configData from Here to first ajax call
}

HomeController - Index Action

[HttpPost]
public ActionResult Index(FullConfigMV data)
{
  //SECOND AJAX CALL SHOULD COME HERE
}

Nested Ajax call

<script>
    $(document).ready(function()
    {
        $("#tan").change(function()
        {
            alert(this.value);
            $.ajax({
                type: 'POST',
                url: '/Settings/GetAvailableLocationsFor',
                data: { accountId: 28462, groupId: 35},
                success: function (data) { // data should represent configObj

                    $.ajax({
                        type: 'POST',
                        url: '/Home/Index',
                        data: // WHAT TO WRITE HERE,
                        success: function (data) {
                            //WHATEVER
                        },
                        error: function () {
                            DisplayError('Failed to load the data.');
                        }
                    });

                },
                error: function () {
                    DisplayError('Failed to load the data.');
                }
            });


        });
    });
</script>

回答1:

A better approach would be to return a redirect in your GetAvailableLocationsFor action

return RedirectToAction("Index", "Home", configData)

Then in your ajax success instead of the second ajax call. Just handle whatever gets returned by Home/Index.

回答2:

Return JSON data from GetAvailableLocationsFor method. After in second ajax call you can send data like below:

data: JSON.parse(response),

this will get data in your parameter in Index method

来源：https://stackoverflow.com/questions/41706791/how-to-call-nested-ajax-call-and-send-object-data-to-controller-in-asp-net-mvc-5