[DotNetDevelopment] multiple schema, validation test failing

[Liliths Thrall]

Please help.  I'm been working on this for a week now and don't seem
to be making any headway.
Basically, I'm getting xml which can be in about 8 different schema
(maybe more).  I want to run that xml against each schema to see if it
validates.  If it does so, I know what kind of xml file it is and I
know how to process it from there.  If it doesn't validate against any
of them, well, then I know what to do with the file in that case as
well.

I wrote the following code
    class XMLValidator
    {
        int numErrors;
        string msgError;
        Dictionary<string, XmlReaderSettings> dictSchemaSet;

        public XMLValidator(string strXSDDirectoryPath)
        {

            msgError = "";
            dictSchemaSet = null;
            dictSchemaSet = getSchemaSet(strXSDDirectoryPath);
        }

        private Dictionary<string,XmlReaderSettings> getSchemaSet
(string strXSDDirectoryPath)
        {
            Dictionary<string,XmlReaderSettings> dictSchemaCollection
= new Dictionary<string,XmlReaderSettings>();

            DirectoryInfo di = new DirectoryInfo(strXSDDirectoryPath);
            FileInfo[] rgFiles = di.GetFiles("*.xsd");

            foreach (FileInfo fi in rgFiles)
            {
                XmlReaderSettings settings = new XmlReaderSettings();
                settings.ValidationEventHandler += new
ValidationEventHandler(this.ValidationEventHandler);
                settings.ValidationType = ValidationType.Schema;
                string schemaPath = strXSDDirectoryPath+"\\"+fi.Name;
                settings.Schemas.Add(fi.Name,XmlReader.Create
(schemaPath));
                dictSchemaCollection.Add(fi.Name,settings);
            }
            return dictSchemaCollection;
        }

        private void ValidationEventHandler(object sender,
ValidationEventArgs args)
        {
            msgError = msgError + "\r\n" + args.Message;
            numErrors++;
        }

        public string getSchema(string strXMLpath)
        {
            string strSchemaIdentified = "unknown";
            numErrors = 0;

            foreach (KeyValuePair<string, XmlReaderSettings> settings
in dictSchemaSet)
            {
                using (XmlReader xmlValidatingReader = XmlReader.Create
(strXMLpath, settings.Value))
                {
                    while(xmlValidatingReader.Read()){}
                    if (numErrors == 0)
                    {
                        strSchemaIdentified = settings.Key;
                        break;
                    }
                    else
                        numErrors = 0;
                }
            }
            return strSchemaIdentified;
        }
    }

However, when I run xml against it, the code always reports that the
xml validates against the first schema in the dictionary.  I tested
the schema in XMLSpy.  This shouldn't be happening.
And, like I said, I've been banging my head against the wall on this
for a week.  Please give me a hand.

Thanks