Assembly: System.Xml (in system.xml.dll)
|Error||Indicates a validation error occurred when validating the instance document. This applies to document type definitions (DTDs) and XML Schema definition language (XSD) schemas. The World Wide Web Consortium (W3C) validity constraints are considered errors. If no validation event handler has been created, errors throw an exception.|
|Warning||Indicates that a validation event occurred that is not an error. A warning is typically issued when there is no DTD, or XML Schema to validate a particular element or attribute against. Unlike errors, warnings do not throw an exception if there is no validation event handler.|
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.