Windows 8学习笔记（二）——XML文件的操作

 

今天用了一下Win8 Metro中XML文件的操作，发现在很有必须整理下来，虽然用法很简单，但每次用的时候都有些不顺手。

        读取XML文件

           Windows.Storage.StorageFolder storageFolder = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFolderAsync (Folder);
           Windows.Storage.StorageFile storageFile = await  storageFolder.GetFileAsync(file);
           Windows.Data.Xml.Dom.XmlLoadSettings xmlloadsettings = new XmlLoadSettings();
           xmlloadsettings.ProhibitDtd = false;
           xmlloadsettings.ResolveExternals = false;
           xmlloadsettings.ElementContentWhiteSpace = true;
           XmlDocument doc = await Windows.Data.Xml.Dom.XmlDocument.LoadFromFileAsync(storageFile, xmlloadsettings);

           string xmlData = doc.GetXml();

           显示如下：

                 

 

           增加节点

           //增加节点
           var nodelist = doc.SelectNodes("/rss/channel");
           for (int i = 0; i < 3; i++)
           {
               XmlElement ele1 = doc.CreateElement("ChannelType");
               XmlElement e1 = doc.CreateElement("ChannelID");
               e1.InnerText = "NO" + i.ToString();
               ele1.AppendChild(e1);
               XmlElement e2 = doc.CreateElement("ChannelName");
               e2.InnerText = "Channel" + i.ToString();
               ele1.AppendChild(e2);

               nodelist[0].AppendChild(ele1);
           }

           await doc.SaveToFileAsync(storageFile);

          结果如下：

          

 

           查询并修改相应的节点

           var node = nodelist[0].SelectNodes("ChannelType");
           node[0].SelectSingleNode("ChannelID").InnerText = "channel12";

           await doc.SaveToFileAsync(storageFile);

           结果如下：

            

 

           删除节点

           var nodeMain = nodelist[0].SelectNodes("ChannelType")[0];
           var noderemove = nodeMain.SelectSingleNode("ChannelID");
           nodeMain.RemoveChild(noderemove);

           await doc.SaveToFileAsync(storageFile);

           结果显示：

            
 

           以上就是XML的简单操作，排版很别扭，下了两个代码插件却安装不上，很是纠结，先将就一下了，我再找找看有没好的代码插件，人家的代码排版很美，而我的呼呼~~

 

 

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