Question

I have a simple code from a book and the code should display data from my controller in the “results” span. What am I missing?

Controller…

    public string GetQuote(string symbol)
    {
        if (symbol.Trim() != "")
            return "99";
        else
            return "Sorry";
    }

ASPX…

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
Index
</asp:Content>

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

<h2>Index</h2>

<%using (Html.BeginForm("GetQuote","Stocks", new { id = "quoteForm" })) { %>

    Symbol: 
<%= Html.TextBox("symbol") %>
<input type="submit" />
<span id="results"></span>
<% } %>
<p><i><%=DateTime.Now.ToLongTimeString() %></i></p>

<script type="text/javascript">
    $("form[action~='GetQuote']").submit(function() {
        $.post($(this).attr("action"), $(this).serialize(), function(response) {
            $("#results").html(response);
        });
        return false;
    });

</script>

Answer 1

You selector only matches <form> elements where the action parameter ends with GetQuote.
You need to change it to form[action~='GetQuote'] to match <form> elements where the action parameter contains GetQuote.

Alternatively, you can add an ID to your form, like this:

using (Html.BeginForm("GetQuote","Stocks", new { id = "quoteForm" })) 

and change the selector to #quoteForm.