title: Left Justify a String in C# with the length dynamically given
body: <p>I am trying to write a Left Justify Function such as:</p>
  
  <pre><code>private static string LeftJustify(string field, int len)
  {
      string retVal = string.empty;
  
      ///todo:
  
     return retVal;
  
  }
  </code></pre>
  
  <p>can you help me put the logic in the function?</p>