(XmlNode) ex.SourceObject always NULL (code in c sharp)

Question

Hi every body,

While validating my .xml with an .xsd, i added these 2 methods to access the xml node that contains the error :

public void ValidateXml(string xmlFilePath, string xsdFilePath)
        {
            if (string.IsNullOrEmpty(xmlFilePath)) { throw new ArgumentNullException("xmlFilePath"); }
            if (string.IsNullOrEmpty(xsdFilePath)) { throw new ArgumentNullException("xsdFilePath"); }
            if (!File.Exists(xmlFilePath))
            {
                throw new ArgumentException(string.Format("File [{0}] not found.", xmlFilePath));
            }
            if (!File.Exists(xsdFilePath))
            {
                throw new ArgumentException(string.Format("File [{0}] not found.", xsdFilePath));
            }

            var schemas = new XmlSchemaSet();

            // Use the target namespace specified in the XSD file.
            schemas.Add(null, xsdFilePath);

            var readerSettings = new XmlReaderSettings();

            // Validate the xml file to an XSD file not an DTD or XDR.
            readerSettings.ValidationType = ValidationType.Schema;

            // Include schemas referenced by the given xsd file (recursively) in the validation proces.
            readerSettings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;

            // Warnings will fire the ValidationEventHandler function.
            readerSettings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
            readerSettings.Schemas.Add(schemas);

            // The function [ValidationEventHandler] will be used to handle all validation errors / warnings.
            readerSettings.ValidationEventHandler += ValidationEventHandler;

            using (var xmlReader = XmlReader.Create(xmlFilePath, readerSettings))
            {
                while (xmlReader.Read()) { }    // Validate XML file.
            }
}

public void ValidationEventHandler(object sender, ValidationEventArgs args)
 {

         //MessageBox.Show(args.Severity.ToString() + " *** " + args.Exception.ToString() + " $$$ " + args.Exception.LineNumber.ToString() + " ### " +   args.Exception.LinePosition.ToString());

         XmlSchemaValidationException ex = (XmlSchemaValidationException) args.Exception;
         XmlNode node = (XmlNode)ex.SourceObject;
 }

My problem is that : ex.SourceObject is always NULL.

Any help will be much appreciated.

Thank you.

---

Nacer CREPUQ BI Developer

Answer 1

Hi NacerCREPUQ,

I would like to redirect you to appropriate forum for better responses.  

---

Bob Shen
MSDN Community Support | Feedback to us
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