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 <  ? ("" + dtNow.Month.ToString()) : (dtNow.Month.ToString());
             dateString += dtNow.Day.ToString().Length <  ? ("" + 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_");