C# & ASP.NET MVC：使用 ajax 调用来调用视图

Question

I want to call a view with an ajax call on my current view. The following is my Ajax call that calls a function of my controller.

$.ajax({
        type: 'POST',
        url: '@Url.Action("EditCertificateObservation", "Frühwarnsystem")',
        data: {
            serverName: '@Model[0].ServerName',
            name: event.data.name,
            thumbprint: event.data.thumbprint,

            expiringDateStr: event.data.expiringDate,
            isChecked: document.getElementById(store + event.data.index).checked,
            model: data,
        },
    });

This code is my controller function that returns a view to load.

[HttpPost]
public ActionResult EditCertificateObservation(string serverName, string name, string thumbprint, string expiringDateStr, bool isChecked, string model)
{
    var newModel = JsonConvert.DeserializeObject<List<Store>>(model);

    var cert = new Certificate(serverName, name, thumbprint, expiringDateStr);
    var server = new Server(serverName);
    server.FetchIdByServerName();

    if (isChecked)
    {
        cert.AddToObservation(server.Id);
    }
    else
    {
        cert.DeleteFromObservation();
    }

    return View("Index");
}

To know for you: I call the ajax call with a checkbox on my view, which is dynamically generated. If I debug the controller function get called and runs but the browser doesn't load the view I return.

If you need more information, just ask here.

Thank you for your help

Answer 1

You are calling an ajax POST HTTP request. It means you can download the result of the call and assign it into a javascript variable. This result will not be displayed in the browser as a page. Take a look at examples of $.post here .

Answer 2

If you want to open a view with after Ajax request than you just have to wait for the response of your controller then you can use success , but you can also use failure or error depend on your need, so your Ajax will be like this:

$.ajax({
    type: 'POST',
    url: '@Url.Action("EditCertificateObservation", "Frühwarnsystem")',
    data: {
        serverName: '@Model[0].ServerName',
        name: event.data.name,
        thumbprint: event.data.thumbprint,

        expiringDateStr: event.data.expiringDate,
        isChecked: document.getElementById(store + event.data.index).checked,
        model: data,
    },
        success: function (response) { 
        alert(response.message); 
        window.location.href = "/Frühwarnsystem/Index";

        // or with some parameter
        window.location.href ="/Frühwarnsystem/Index?id=" + response.counter;

        // or if you prefer with helper ...
        window.location.href = '@Url.Action("Frühwarnsystem","Index")';
        
        },
        failure: function (response) { alert("failure"); },
        error: function (response) { alert("error"); }
});

And to be a little more useful, your controller can send a Json response with some parameter for example, as follow:

[HttpPost]
public JsonResult EditCertificateObservation(string serverName, string name, string thumbprint, string expiringDateStr, bool isChecked, string model)
{
    var newModel = JsonConvert.DeserializeObject<List<Store>>(model);

    var cert = new Certificate(serverName, name, thumbprint, expiringDateStr);
    var server = new Server(serverName);
    server.FetchIdByServerName();

    if (isChecked)
    {
        cert.AddToObservation(server.Id);
    }
    else
    {
        cert.DeleteFromObservation();
    }
    // Do some condition here to send an answer ...
    string message = "";
    int counter = 0;
    var response = new { counter, message };
    return Json(response);
}