title: mvc form not submitting submit button name
body: <p>I'm really frustrated about this as it was working before.</p>
  
  <p>I have an mvc form with a submit button like this</p>
  
  <pre><code>&lt;input type="submit" class="btn btn-primary btn-hg btn-wide text-center" name="action" value="save" /&gt;
  </code></pre>
  
  <p>I then have a controller action receiving the form as this:</p>
  
  <pre><code>public ActionResult SaveEngagementActivity(EngagementActivity model, string action)
          {
              if (this.ModelState.IsValid)
              {
                  try
  </code></pre>
  
  <p>The issue is that the browser is not sending the details of the submit button ie: the name and value</p>
  
  <pre><code>Id:cf6cedac-2078-495f-8d0b-a2415ed5439d
  CreatedBy:c74038ec-77ea-475e-8d76-f3a6566f91a5
  ActivityType:200005
  Reference:
  Supporter.Id:3734bded-4dad-4701-b668-03b54909b65d
  Supporter.Label:C1000003,  Harris
  Organisation.Id:21a0d1bc-58df-4e89-8c2e-414ce13e82ec
  Organisation.Label:OR100102, Evenley St George's
  DefaultContact:
  ActivitySource:1
  Owner.Id:c74038ec-77ea-475e-8d76-f3a6566f91a5
  Owner.Label:Frank Lores-Penalver
  EngagementActivityType:1
  Alert:0
  Approach.Id:22a24fcd-4d93-4d95-991e-6fe53c2a3842
  Approach.Label:A010008, Indian Cookery Evening
  StartDate:06/03/2015
  DateCompleted:31/03/2015
  FollowUpDate:31/03/2015
  NumberOfAttendees:1
  NumberOfOrganisations:1
  NumbersOfHoursSpent:1
  PledgeTypes:5
  Summary:asdfsaf
  Details:asdfas
  </code></pre>
  
  <p>It's really frustrating as this was working before...  Any help would be appreciated as this is taking unnecessary time.</p>
  
  <pre><code>@using (Html.BeginForm("EngagementActivity", "Activity", FormMethod.Post, new { role = "form" }))
  {
      @Html.AntiForgeryToken()
      @Html.ValidationSummary(false, "Please correct errors below", new { @class = "alert alert-danger" })
  
      &lt;div class="row"&gt;
          &lt;div class="col-xs-6 center-block text-center"&gt;
              &lt;input 
                     type="submit" 
                     class="btn btn-primary btn-hg btn-wide text-center" 
                     name="action" 
                     value="save" /&gt;
                  @*&lt;i class="fui-check"&gt;&lt;/i&gt;&amp;nbsp;Save
              &lt;/input&gt;*@
          &lt;/div&gt;
          &lt;div class="col-xs-6 center-block text-center"&gt;
              &lt;button type="submit" class="btn btn-primary btn-hg btn-wide text-center" name="action" value="saveandcopy" &gt;&lt;i class="fui-plus"&gt;&lt;/i&gt;&amp;nbsp;Save &amp;amp; Copy
              &lt;/button&gt; 
          &lt;/div&gt;
      &lt;/div&gt;
  }
  </code></pre>
  
  <p>I've included the whole form without the fields to save space. This was literally working fine yesterday today it doesn't...</p>