Validating an XML file against its Schema (XSD)

string strXmlFile;

string strXsdFile;

XmlDocument xmlDoc = null;

// Retrieve XML and XSD files from the locations specified in the Settings file.

strXmlFile = Properties.Settings.Default.XMLLocation;

strXsdFile = Properties.Settings.Default.XSDLocation;

try

{

    // Load XML data into a new XMLDocument

    xmlDoc = new XmlDocument();

    xmlDoc.Load(strXmlFile);

    // Validate the XML document against the Schema.

    XmlReaderSettings settings = new XmlReaderSettings();

    settings.ValidationType = ValidationType.Schema;

    settings.Schemas.Add("http://www.w3.org/2001/Messages.xsd", strXsdFile);

    XmlReader objXmlReader = XmlReader.Create(strXmlFile, settings);

    while (objXmlReader.Read()) { }

}

catch (XmlSchemaValidationException XmlSchemaEx)

{

    //"Xml file didn't conform to the schema.";

}

catch (XmlException XmlEx)

{

    //"Invalid XML File Location.";

}

Note: The namespace with the schema's 'Add' Function must match the schema namespace in the file. In this instance (http://www.w3.org/2001/Messages.xsd).