title: How to clear a data bound date time picker?
body: <p>I'm binding date to a date time picker control like this on windows form.</p>
  
  <pre><code>       dtpDOB.Value = Convert.ToDateTime(reader[4]);
  </code></pre>
  
  <p>And when I want to clear it I'm using this code under a button click event.
  This is how I do that.</p>
  
  <pre><code>      dtpDOB.Format = DateTimePickerFormat.Custom;
          dtpDOB.CustomFormat = "";
          dtpDOB.Checked = false;
  </code></pre>
  
  <p>But it does not work.
  How to solve this?</p>