Need to pass parameters and css using Html.Actionlink

Question

I'm trying to call a controller method using an ActionLink. I can access the controller method, and even use css to make the ActionLink look like the button it's supposed to, but I can't pass in parameters - every time I try, I either get an error or the values turn up as null.

These will actually reach the method and hit the break point I set, but without any parameter values.

<p>@Html.ActionLink("Submit Request", "Create", "HomeController",  new { @class = "btn btn-primary"})</p>

<p>@Html.ActionLink("Submit Request", "Create", "HomeController",  new { @class = "btn btn-primary", title = "hello", description = "world"})</p>

These give me an error as soon as I click on the button, specifically an HTTP 404 error for /HomeController/Create.

<p>@Html.ActionLink("Submit Request", "Create", "HomeController", new { title = "hello", description = "world" }, new { @class = "btn btn-primary"})</p>

<p>@Html.ActionLink("Submit Request", "Create", "HomeController", new { @class = "btn btn-primary"}, new { title = "hello", description = "world" })</p>

Here's the method in HomeController for the sake of completeness"

    public ActionResult Create(string title, string description)
    {
        try
        {
            return RedirectToAction("Index");
        }
        catch (Exception ex)
        {
            return View("Index2");
        }
    }

Can anyone tell me what I'm missing or doing wrong?

If your controller is named "HomeController" then the ActionLink helper will use the string "Home" for the controller parameter. — Jasen
– Jasen, Commented Apr 23, 2019 at 17:58

Jasen · Accepted Answer · 2019-04-23 18:13:44Z

1

Your first attempt is using this version of the overload

@Html.ActionLink(linkText: "Submit Request",
                 actionName: "Create",
                 routeValues: "HomeController",
                 htmlAttributes: new { @class = "btn btn-primary" })

The second version of your attempt cannot find the "/HomeController/Create" so unless your controller is HomeControllerController you'll need to drop "Controller" from the controllerName.

@Html.ActionLink(linkText: "Submit Request",
                 actionName: "Create",
                 controllerName: "Home",
                 routeValues: new { title = "hello", description = "world" },
                 htmlAttributes: new { @class = "btn btn-primary" })

answered Apr 23, 2019 at 18:13

Jasen

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