快速写入Xml文件

我们在做一些操作的时候会需要生成日志，Xml文件就是我们常用的一种日志文件。

普通操作Xml文件的代码遇到大数据量的话就很慢了。

用这个生成Xml文件的话，即使数据量很大，也很快

    private void WriteXml(BindingList<Model.WebServiceLog> listwebservicelog, string XName)
        {
            DateTime dtNow = Globas.Globas.DtNowTime; ;
            string dateString = dtNow.Year.ToString();
            dateString += dtNow.Month.ToString().Length < 2 ? ("0" + dtNow.Month.ToString()) : (dtNow.Month.ToString());
            dateString += dtNow.Day.ToString().Length < 2 ? ("0" + dtNow.Day.ToString()) : (dtNow.Day.ToString());

            string filePath = ConfigurationManager.AppSettings["path"];
            filePath = filePath.EndsWith(@"") ? filePath : (filePath + @"");
            filePath = filePath + dateString;
            filePath = filePath.EndsWith(@"") ? filePath : (filePath + @"");

            if (Directory.Exists(filePath) == false)
            {
                Directory.CreateDirectory(filePath);//判断该路径是否存在，不存在则创建该路径文件夹
            }

            filePath = filePath + XName + DateTime.Now.ToString("yyyyMMdd") + ".xml";
            String filename = String.Concat(filePath);
            using (StreamWriter sw = new StreamWriter(filename, true, System.Text.Encoding.GetEncoding("UTF-8")))
            {
                XmlTextWriter xmlWriter = new XmlTextWriter(sw);
                xmlWriter.Formatting = Formatting.Indented;
                xmlWriter.WriteStartDocument();
                xmlWriter.WriteStartElement("Logs");

                foreach (Model.WebServiceLog webservicelog in listwebservicelog)
                {
                    xmlWriter.WriteStartElement("Log");
                    xmlWriter.WriteElementString("UseDate", webservicelog.UseDate);
                    xmlWriter.WriteElementString("Method", webservicelog.Method);
                    xmlWriter.WriteElementString("Parameter", webservicelog.Parameter);
                    xmlWriter.WriteElementString("UseOrReturn", webservicelog.UseOrReturn);
                    // close contact </contact> 
                    xmlWriter.WriteEndElement();
                }
                // close contacts </contact> 
                xmlWriter.WriteEndElement();
                xmlWriter.WriteEndDocument();
                xmlWriter.Close();
            }
        }

调用方式：

WriteXml(listWebservice, "Info_");