在特定位置写入XML文件 [英] Write in a XML File at a particular Lacation

问题描述

大家好，
我有一个类似的xml文件.

Hello All,
I have a xml file like.

<?xml version="1.0" encoding="utf-8"?>
<config>
	<galleries>
		<folder name="Nature">
			<gallery name="Landscapes">
				<img src="nature01.jpg" width="351" height="550" caption="Some photo" />
				<img src="nature02.jpg" width="559" height="420" caption="Some photo" />
			</gallery>
			
			<gallery name="Water">
				<img src="nature01.jpg" width="351" height="550" caption="Some photo" />
				<img src="nature02.jpg" width="559" height="420" caption="Some photo" />
			</gallery>
			<gallery name="Mars">
				<img src="mars01.jpg" width="431" height="565" caption="Some photo" />
			</gallery>
		</folder>
		<folder name="Constructs">
			<gallery name="Buildings">
				<img src="construct01.jpg" width="328" height="500" caption="Some photo 1" />
				<img src="construct02.jpg" width="323" height="500" caption="Some photo 2" />
			</gallery>
			<gallery name="Installations">
				<img src="construct01.jpg" width="328" height="500" caption="Some photo" />
			<img src="construct02.jpg" width="323" height="500" caption="Some photo" />		
			</gallery>
		</folder>
		<gallery name="Venice">                                    
			<img src="venice01.jpg" width="448" height="418" caption="Some photo" />
		</gallery>
</galleries>
	<section name="About us" width="300" height="420" bydefault="true">
		<title>Full dynamic website demo</title>
    <p>Demo Demo</p>
</section>
	<titleandslogan>
		<p class="ptitleandslogan"><span class="spantitle">Delight</span><br />photography studio</p>
	</titleandslogan>
</config>

我必须动态添加&更新图库中的图像，并且该部分也是我的新手，我该怎么做呢.

i have to dynamically Add & Update the images inside the gallery and the section also i am new in development how can i do it plz help.

推荐答案

以下是执行相同操作的一些选项

1.使用XmlDocument

Following are some of the options to do the same

1. Using XmlDocument

XmlDocument doc = new XmlDocument();
doc.Load("D:\\build.xml");
XmlNode root = doc.DocumentElement; 
XmlNode myNode = root.SelectSingleNode("galleries::folder");
myNode.Value = "blabla";
doc.Save("D:\\build.xml");

2.您也可以使用LINQ进行相同的操作

2. You can also use LINQ to do the same

using System.Xml.Linq;  
XDocument xmlFile = XDocument.Load("D:\\build.xml");  
var query = from c in xmlFile.Elements("galleries").Elements("folder")                 
select c;  foreach (XElement folder in query)  
{
	folder.Attribute("attr1").Value = "MyNewValue"; 
} 
xmlFile.Save("build.xml"); 

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