ASP.NET MVC2 Application's submit button returns URL with an appended "Form"

Question

OK, I'm sorry if the tile of the question was unclear, and if you understand what I mean, please don't hesitate to help me think of a better one.

Anyway, I have a <input type="submit"> element for my form, and I want it to return the same URL as the URL of the page the element is on.

Currently, if I click the button, it takes me from /Calculate/Quadratic to /Calculate/QuadraticForm

In my controller for this view, I have the following code:

    [AcceptVerbs(HttpVerbs.Get)]
    public ViewResult Quadratic()
    {
        ViewData["Root1"] = "";
        ViewData["Root2"] = "";
        return View();
    }

    [AcceptVerbs(HttpVerbs.Post)]
    public ViewResult Quadratic(QuadCalc boss)
    {
        ViewData["Root1"] = x1;
        ViewData["Root2"] = x2;
        return View();
    }

And here is the markup and code for my Quadratic view page, which includes the form which includes the submit button I've been referring to:

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
    <h2>Quadratic</h2>

    <% using(Html.BeginForm("QuadraticForm", "Calculate")) %>
    <% { %>
    <div>
        a: <%= Html.TextBox("quadraticAValue") %>
        <br />
        b: <%= Html.TextBox("quadraticBValue") %>
        <br />
        c: <%= Html.TextBox("quadraticCValue") %>
        <br />
        <input type="submit" id="quadraticSubmitButton" value="Calculate!" />
        <br />
        <p><%= ViewData["Root1"] %></p>
        <p><%= ViewData["Root2"] %></p>
    </div>
    <% } %>
</asp:Content>

Therefore, all I really want is to have the submit button return the same page, but the HTTP post will aid the application in passing new ViewData. Unless I'm interpreting this all wrong.

Answer 1

The problem is in your BeginForm method that calls the QuadraticForm action

<% using(Html.BeginForm("QuadraticForm", "Calculate")) %>

If you want to give an ID to the form you should use

<% using (Html.BeginForm("Quadratic", "Calculate", FormMethod.Post, new { id = "QuadraticForm" })) { %>

If you dont mind about the ID and want to just return to the same action just use

<% using(Html.BeginForm() %>

The parameters are:

• The action name
• The controller Name
• The form method (get/post)
• The form attributes