class ValidateXML

    {

        public string ErrString = string.Empty;

        public void ValidationEventCallBack(Object sender, ValidationEventArgs e)

        {

            if (e.Severity == XmlSeverityType.Warning)//区分是警告还是错误

            {

                //Console.WriteLine("验证成功!警告：" + e.Message);

                ErrString += "验证成功!警告：" + e.Message;

            }

            else

            {

               // Console.WriteLine("验证失败");

                ErrString += "Err:" + e.Message;

            }

        }

        public void CheckXmlValidate(string strRequestXML)

        {

            //string ErrString = string.Empty;

            StringReader sRead = null;

            XmlReader xmlRead = null;

            XmlSchemaSet schemaSet;

            try

            {

                schemaSet = new XmlSchemaSet();

                sRead = new StringReader(strRequestXML);

                schemaSet.Add(null, @"MySchema.xsd");

                XmlReaderSettings settings = new XmlReaderSettings();

                settings.ValidationEventHandler += new ValidationEventHandler(this.ValidationEventCallBack);

                settings.ValidationType = ValidationType.Schema;

                settings.Schemas = schemaSet;

                xmlRead = XmlReader.Create(sRead, settings);

                while (xmlRead.Read())

                {

                }

                if (ErrString.ToString() == String.Empty)

                {

                    Console.WriteLine("验证成功!");

                }

                else

                {

                    Console.WriteLine("验证失败！原因可能是：" + ErrString);

                }

            }

            catch (XmlException exec)

            {

                Console.WriteLine(exec.Message);

            }

            finally

            {

                if (xmlRead != null)

                {

                    xmlRead.Close();

                }

            }

        }

    }

public static void Main(string[] args)

        {

ValidateXML vx = new ValidateXML();

            //StreamReader sr = new StreamReader(new FileStream(@"test.xml", FileMode.Open));

            vx.CheckXmlValidate(File.ReadAllText(@"test.xml"));

            PressQtoQuit();

        }

public static void PressQtoQuit()

        {

            Console.WriteLine("Hit Q to exit");

            ConsoleKey key;

            do

            {

                key = Console.ReadKey().Key;

            } while (key != ConsoleKey.Q);

        }