C# XSD校验XML文件的代码

/// <summary>
        /// XSD文件校验XML
        /// </summary>
        /// <returns></returns>
        public ArrayList ECSValueValidation()
        {
            ArrayList al = new ArrayList();
            try
            {
                //doc是XmlDocument对象 
                doc.Load(m_xmlURL);
            }
            catch (System.Exception ex)
            {
                return null;
            }
            


            //声明XmlSchema
            XmlSchemaSet schemas = new XmlSchemaSet();
            schemas.Add("", XmlReader.Create(this.m_xsdPath));
            //声明事件处理方法
            ValidationEventHandler eventHandler = new ValidationEventHandler(delegate(object sender, ValidationEventArgs e)
            {
                switch (e.Severity)
                {
                    case XmlSeverityType.Error:
                        //error += e.Message;
                        al.Add(e.Message);
                        break;
                    case XmlSeverityType.Warning:
                        break;
                }
            });
            doc.Schemas = schemas;
            //验证xml
            doc.Validate(eventHandler);
            //检查是否有异常 如果格式不正确就抛出来
            //if (!"".Equals(error))
            //{
            //    throw new Exception(error);
            //    flag = false;
            //}

            return al;
        }