IsAjaxRequest is always false after upgrade to RC MVC

I updated the AJAX scripts and assembly referenced as per release notes. However, IsAjaxRequest still always returns false despite it actually being such a request. How do I resolve this?

From stackoverflow

• I did not have a problem using RC1 Updated ... As a test I added this action to the Home Controller

  public ActionResult Test()
  {
      ifRequest.IsAjaxRequest())
          return PartialView();
      return new EmptyResult();
  }
  

  and this to the Home/Index.aspx file

  <%= Ajax.ActionLink("Test", "Test", new AjaxOptions{ UpdateTargetId="TestTarget", InsertionMode=InsertionMode.InsertAfter} ) %>

  Test Target

  Created Views/Home/Test.ascx

  <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
  
  </br>This is a test
  

  and added the Ajax Javascript Files to the Master Page

  ---

  In response to comments I added an AjaxForm to the Index.aspx and it worked

  <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>
  
  <asp:Content ID="indexHead" ContentPlaceHolderID="head" runat="server">
      <title>Home Page</title>
  </asp:Content>
  
  <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server">
      <h2><%= Html.Encode(ViewData["Message"]) %></h2>
      <p>
          To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">http://asp.net/mvc</a>.
      </p>
  
      <%= Ajax.ActionLink("Test", "Test", new AjaxOptions{ UpdateTargetId="TestTarget", InsertionMode=InsertionMode.InsertAfter} ) %>
      <div id="TestTarget">Test Target</div>
  
      <% using(Ajax.BeginForm("Test", new AjaxOptions{ UpdateTargetId="TestTarget", InsertionMode=InsertionMode.InsertAfter} ) ){%>
  
      <button type="submit" >click me</button>
  
      <% } %>
  </asp:Content>
  

  zsharp : i didnt try with actionlink, but it didnt work with ajax form.

• As I understand you are using MS Ajax library. You should update your MicrosoftMvcAjax.js too. It was changed.

• I am having the same problem in 1.0.

  In fact I just created a new MVC application with the code Matthew provided and Request.IsAjaxRequest() always returns true in this new app too?