title: Best way to check if column returns a null value (from database to .net application)
body: <p>I have a table with a DateTime column
  the column can have NULL values</p>
  
  <p>Now I connect to the database using an ODBC connection and get the value into a DataTable in .net / c#.</p>
  
  <p>I am able to check it for NULL by going</p>
  
  <pre><code>if(String.IsNullOrEmpty(table.rows[0][0].ToString())
  {
       //Whatever I want to do
  }
  </code></pre>
  
  <p>Is String.IsNullOrEmpty the correct way to check for null values.</p>