title: WPF DatePicker default to today's date
body: <p>WPF DatePicker always show 'Show Calendar' by default. I want it to show current/todays date. How do I do that. I tried doing something like the below in the constructor but it won't work,</p>
  
  <pre><code>datePicker.SelectedDate = DateTime.Now.Date;
  </code></pre>
  
  <p>or</p>
  
  <pre><code>datePicker.DisplayDate = DateTime.Now.Date;
  </code></pre>