title: List in dropdownbox in grid does not return value
body: <p>I have an enum</p>
  <pre><code>enum SendDays
  {
      Maandag = 1,
      Dinsdag,
      Vandaag= 99
  }
  </code></pre>
  <p>And a Class</p>
  <pre><code>public struct DayListModel
  {
      public int Id;
      public string DayName;
  }
  </code></pre>
  <p>I fill a list with days like this</p>
  <pre><code>private void Filldays()
  {
     foreach(int i in Enum.getValues(typeof(SendDays)))
     {
          DayListModel day =new DaylistModel()
          {
              Id = i,
              Dayname = Enum.GetName(typeof(SendDays), i)
           };
           DayList.Add(day);
     }
  </code></pre>
  <p>When I use this is in A telerik RadGridView in a radcombobox
  like</p>
  <pre><code>&lt;telerik:RadComboBox ItemsSource=&quot;{Bindning DayList}&quot; DisplayMemberPath=&quot;DayName&quot; SelectedValue=&quot;{Bindning DefaultSendDay}&quot; SelectedValuePath=&quot;Id&quot;/&gt;
  </code></pre>
  <p>Whenever I change the selecteditem this is not passed.</p>
  <p>Any suggestions?</p>
  <p>Jeroen</p>