title: Is there any way to update only text of date picker content control, not the formatting detail?
body: <p>I am working on one <strong>word add-in</strong> application in which I have several <strong>date picker content controls</strong>, setting the <strong>text value</strong> in to this content control <strong>also changes the format of it</strong> as per <strong>system date format</strong>.</p>
  
  <p>I am setting up the <strong>DateDisplayFormat</strong> and <strong>DateDisplayLocale</strong> explicitly still it is showing date value as per system date format.</p>
  
  <pre><code>ContentControl.Range.Text = "21-12-16";
  ContentControl.DateDisplayFormat ="yy-M-d";
  ContentControl.DateDisplayLocale = 
  Microsoft.Office.Interop.Word.WdLanguageID.wdSimplifiedChinese;
  </code></pre>
  
  <p><strong>My system date format : MM/dd/yyyy</strong></p>
  
  <pre><code>-Actual result : 16-12-21 (MM/dd/yyyy)
  -Expected result : 21-12-16 (yy-M-d)
  </code></pre>