Serialize XML and append new elements to XML file

问题

I have created a XML class using XSD2Code from my XML Schema. The class having a method SaveToFile. So when I am trying to add new elements and save it to the XML file it overwrites the entire content.

Does anyone have idea how to insert elements(append to the XML) to the XML file via Serialization.

eg:

<?xml version="1.0" encoding="utf-8"?>
<root>
  <element>content1</element>
</root>

If this is the XML file I need to add an element and the resulting should come as like below using Serialization.

<?xml version="1.0" encoding="utf-8"?>
<root>
  <element>content1</element>
  <element>content2</element>
</root>

回答1:

Your request would seem to be resolvable by adding another item into your List collection.

MyTypeFromXmlSchema myType = new MyTypeFromXmlSchema();
myType.MyElementItems = new List<MyElementItem>();
myType.MyElementItems.Add { new MyElementItem { value = "value1" } };
myType.MyElementItems.Add { new MyElementItem { value = "value2" } };

Then serialize type using XmlSerializer.

来源：https://stackoverflow.com/questions/6703782/serialize-xml-and-append-new-elements-to-xml-file