MVC3 - Understanding POST with a Button

Question

How to get form data after submitting?

<form target="_self" runat="server">
    <p>
    <select id="BLAHBLAH2">
        <option>2010</option>
        <option>2011</option>
        <option>2012</option>
        <option>2013</option>
    </select>
    <input type="submit" runat="server" value="Change Year" />
    </p>
</form>

This corresponds to the controller method Index. But there is Request.Formnothing. Why?

Secondly, can I use

<input type="button"instead of type=submit? That is, without entering ajax through onclick.

Finally, how do I send another method to the controller, for example. Create?

Answer 1

runat. ASP.NET MVC. . , . , , , , :

<form action="/Home/Create" method="post">
    <p>
    <select id="BLAHBLAH2" name="BLAHBLAH2">
        <option value="2010">2010</option>
        <option value="2011">2011</option>
        <option value="2012">2012</option>
        <option value="2013">2013</option>
    </select>
    <input type="submit" value="Change Year" />
    </p>
</form>

ASP.NET MVC HTML-. , , . Razor:

@model MyViewModel
@using (Html.BeginForm("Create", "Home")) 
{
    <p>
        @Html.DropDownListFor(x => x.SelectedYear, Model.Years)
        <input type="submit" value="Change Year" />
    </p>
}

:

public class MyViewModel
{
    public string SelectedYear { get; set; }

    public IEnumerable<SelectListItem> Years
    {
        get
        {
            return Enumerable
                .Range(2010, 4)
                .Select(x => new SelectListItem
                {
                    Value = x.ToString(),
                    Text = x.ToString()
                });
        }
    }
}

, :

public class HomeController: Controller
{
    public ActionResult Index()
    {
        var model = new MyViewModel();
        return View(model);
    }

    [HttpPost]
    public ActionResult Create(MyViewModel model)
    {
        ... model.SelectedYear will contain the selected year
    }
}

Answer 2

<option> :

...
<option value="2010">2010</option>
...

David, runat = "server" - , , WebForms, .

, URL .

Html.BeginForm:

@using (Html.BeginForm("AnotherAction", "ControllerName")) {
   <!-- Your magic form here -->
}

Url.Action

<form action="@Url.Action("AnotherAction")" method="POST">
   <!-- Your magic form here -->
</form>

Answer 3

You can also use the in controller

int Value = Convert.ToInt32(Request["BLAHBLAH2"]); //To retrieve this int value

In the .cshtml file use

    <select id="IDxxx" name="BLAHBLAH2"> 

// Request ["] will retrieve VALUE for the html object whose" name "you are requesting.