title: How to pass if value for date is NULL in VB.Net
body: <p>Why this happen, after I save the null date, the date become <code>01/01/1900</code></p>
  
  <p><strong>expected</strong>: if there have no any data inside date field, then it should be null inside database. </p>
  
  <p>Below was my code. Please help me to fix it. Thanks in advance</p>
  
  <pre><code>.AddWithValue("@issuedDate", FormatDate(psIssuedDate.Trim, 
                  BTW_Constant.kiDateTimeFormat_01))
  </code></pre>