title: Asp MVC Dropdown List Selected Value not selected
body: <p>I have the following dropdown list but the selected value doesn't seem to working. It defaults to first item in list.</p>
  
  <pre><code>    private List&lt;string&gt; GetTransmissions()
      {
          List&lt;string&gt; Transmission = new List&lt;string&gt;();
          Transmission.Add("Automatic");
          Transmission.Add("Manual");
  
  
          return Transmission;
      }
  
       Car car = _repository.GetCarDetails(id);
  
       ViewBag.Transmission = new SelectList(GetTransmissions(), car.Transmission);
  </code></pre>
  
  <p>In my view I have:</p>
  
  <pre><code>    @Html.DropDownList("Transmission", (IEnumerable&lt;SelectListItem&gt;)ViewBag.Transmission, "Please Select", new { @class = "form-control" })
  </code></pre>