将元素和属性附加到XML文件 [英] Append elements and attributes to an XML file

问题描述

我有一个XML文件，如下所示

 <？  xml     version   =  1.0 ？ >  
 <  设备 >  
 <  设备   名称  =  DA-001 >  
 <   plant  > 巴西<   / plant  >  
 <   / equipment  >  
 <  设备   名称  =  VERIGY-93K_PSL-032 >  
 <  工厂 > 巴西<   / plant  >  
 <   / equipment  >  
 < span class =code-keyword><   equipment    名称  =  BA-1500-002 >  
 <  工厂 >  Muar <   / plant  >  
 <   / equipment  >  
 <   / devices  >  

我需要通过一些C＃代码将项目附加到此XML，但是我无法附加并保留相同的XML格式

 XmlDocument doc =  new  XmlDocument（）; 
 doc.Load（history）; 
 
 XmlNode equipment = doc.CreateElement（  equipment）; 
 XmlAttribute name = doc.CreateAttribute（  name）; 
 name.Value = textBox.Text; 
 equipment.Attributes.Append（name）; 
 doc.DocumentElement.AppendChild（设备）; 
 
 XmlNode plant = doc.CreateElement（  plant）; 
 plant.InnerText = cmbPlant.SelectedItem.ToString（）; 
 doc.DocumentElement.AppendChild（plant）; 
 doc.Save（  Equipment.xml）; 
 

以上代码附加如下：请注意工厂应位于设备节点且设备不在以前的XML内容关闭。

 <？ < span class =code-summarycomment> xml     version   =  1.0 ？  >  
 <  设备 >  
 <  设备   名称  =  DA-001  >  
 <  工厂 > 巴西<   / plant  >  
 <   / equipment  >  
 <  设备   < span class =code-attribute> name   =  VERIGY-93K_PSL-032 >  
 <   plant  > 巴西<   / plant  >  
 <   / equipment  >  
 <  设备   名称  =  BA-1500-002 >  
 <   plant  >  Muar <   / plant  >  
 <   / equipment  >  
 <  设备   名称  =  This_Equipment_added    /  >  
 <   plant  >  USA <   / plant  >  
 <   / devices  >  

解决方案

您的问题是您要将'equipment'和'plant'添加为根元素的子元素。 。

 doc.DocumentElement.AppendChild（设备）; 
 doc.DocumentElement.AppendChild（plant）; 

将第二行更改为：

 equipment.AppendChild（植物）; 

I have an XML file as below

<?xml version="1.0"?>
<equipments>
  <equipment name="DA-001">
    <plant>Brazil</plant>
  </equipment>
  <equipment name="VERIGY-93K_PSL-032">
    <plant>Brazil</plant>
  </equipment>
  <equipment name="BA-1500-002">
    <plant>Muar</plant>
  </equipment>
</equipments>

I need to append items to this XML via some C# code, however I cannot append and retaining same XML format

XmlDocument doc = new XmlDocument();
doc.Load(history);

XmlNode equipment = doc.CreateElement("equipment");
XmlAttribute name = doc.CreateAttribute("name");
name.Value = textBox.Text;
equipment.Attributes.Append(name);
doc.DocumentElement.AppendChild(equipment);

XmlNode plant = doc.CreateElement("plant");
plant.InnerText = cmbPlant.SelectedItem.ToString();
doc.DocumentElement.AppendChild(plant);
doc.Save("Equipment.xml");

The above code is appending as follows: Notice that the plant should be in the equipment node and the equipment is not being closed as the previous XML contents.

<?xml version="1.0"?>
<equipments>
  <equipment name="DA-001">
    <plant>Brazil</plant>
  </equipment>
  <equipment name="VERIGY-93K_PSL-032">
    <plant>Brazil</plant>
  </equipment>
  <equipment name="BA-1500-002">
    <plant>Muar</plant>
  </equipment>
  <equipment name="This_Equipment_added" />
  <plant>USA</plant>
</equipments>

解决方案

Your problem is that you are adding both 'equipment' and 'plant' as child of the root element...

doc.DocumentElement.AppendChild(equipment);
doc.DocumentElement.AppendChild(plant);

Change the second line to this:

equipment.AppendChild(plant);

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