处理XML文件删除评论 [英] Processing an XML file removes comments

问题描述

该段＆LT;！ - 请不要删除 - ＆GT; 是我的XML文件的一部分。运行此方法后，生成的XML文件不包含这个片段了＆LT;！ - 请不要删除 - ＆GT; 。这是为什么？

下面是我的方法：

  XmlSerializer的序列化=新的XmlSerializer（typeof运算（设置））;
         TextWriter的作家=新的StreamWriter（路径）;
         serializer.Serialize（作家，设置）;
         writer.Close（）;
 

解决方案

好了，这是很明显的：

• 的的XmlSerializer 将解析XML文件，并提取从它的设置的所有实例 - 您的评论不会是任何对象的一部分
• 当你写那些背出来了，在设置的唯一的内容的对象是写出来了

您的评论会漏掉 - 但我看不出有什么办法可以为你使用XmlSerializer办法拯救的评论，只要

。

您需要做的是使用的XmlReader / XmlWriter的，而不是：

  XmlReader的读者= XmlReader.Create（yourfile.xml）;
XmlWriter的作家= XmlWriter.Create（你 - 新file.xml）;

而（reader.Read（））
{
   writer.WriteNode（读者，真正的）;
}

writer.Close（）;
reader.Close（）;
 

这将复制所有XML节点 - 包括注释 - 新的文件

。

This snippet <!--Please don't delete this--> is part of my xml file. After running this method, the resulting xml file does not contain this snippet anymore <!--Please don't delete this-->. Why is this?

Here's my method:

         XmlSerializer serializer = new XmlSerializer(typeof(Settings));
         TextWriter writer = new StreamWriter(path);
         serializer.Serialize(writer, settings);
         writer.Close();    

解决方案

Well, this is quite obvious:

• the XmlSerializer will parse the XML file and extract all instances of Settings from it - your comment won't be part of any of those objects
• when you write those back out again, only the contents of the Settings objects is written out again

Your comment will fall through the cracks - but I don't see any way you could "save" that comment as long as you're using the XmlSerializer approach.

What you need to do is use the XmlReader / XmlWriter instead:

XmlReader reader = XmlReader.Create("yourfile.xml");
XmlWriter writer = XmlWriter.Create("your-new-file.xml");

while (reader.Read())
{
   writer.WriteNode(reader, true);
}

writer.Close();
reader.Close();

This will copy all xml nodes - including comments - to the new file.

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