title: Handling XSD Dataset ConstraintExceptions
body: <p>Does anyone have any tips for dealing with ConstraintExceptions thrown by XSD datasets?</p>
  
  <p>This is the exception with the cryptic message:</p>
  
  <pre><code>System.Data.ConstraintException : Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
  </code></pre>