title: SqlDateTime overflow, but I want a NULL or MinValue
body: <p>On this project, I am tracking when something is created, edited, and finally processed. I have three DateTime fields setup for this. The code below is for when I create the record.</p>
  
  <pre><code>newsArchive.CreateDateTime = DateTime.Now;
  newsArchive.ModifyDateTime = DateTime.MinValue;
  newsArchive.SendDateTime = DateTime.MinValue;
  naRepository.Add(newsArchive);
  naRepository.Save();
  </code></pre>
  
  <p>I am getting "SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM." when I try to add it. I know I can't send a NULL. How would you handle this?</p>
  
  <p>I am using Linq2SQL to process this.</p>