don't display datetime min value in gridview
<p>given:</p>

<pre><code>public class Customer
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public DateTime Birthdate { get; set; }
}
</code></pre>

<p>I have List where some birthdates weren't entered and so when I bind to GridView it shows DateTime.MinValue. What are some different ways to show a blank in a gridview if the birthdate is DateTime.MinValue?</p>
