title: Order list where date is string
body: <p>I have three classes :</p>
  
  <pre><code>public class QData
  { 
      public List&lt;RData&gt; Items { get; set; }
      public List&lt;QDay&gt; Dates { get; set; } 
  } 
  public class QDay 
  {
      public string Date { get; set; }
      public List&lt;RData&gt; Details { get; set; } 
  }
  
  public class RData
  { 
      public string Name { get; set; }
      public int Quantity { get; set; }
  }
  </code></pre>
  
  <hr>
  
  <p>my list is </p>
  
  <pre><code>List&lt;QData&gt; myList;
  </code></pre>
  
  <p>What is the most effective way to sort the list (*QData type) by Date, the Date is string.</p>