XML操作演练代码,CSharp代码库,德仔网

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【CSharp】 XML操作演练
作者:asion / 发布于2011/4/26/ 820
<div><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Collections.Generic;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.ComponentModel;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Data;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Drawing;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Linq;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Text;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Windows.Forms;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.Xml;
</span><span style="color: rgb(0,0,255)">using</span><span style="color: rgb(0,0,0)"> System.IO;

</span><span style="color: rgb(0,0,255)">namespace</span><span style="color: rgb(0,0,0)"> WindowsFormsApplication1
{
 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">partial</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">class</span><span style="color: rgb(0,0,0)"> frm_MainForm : Form
 {
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">string Filename = null;</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)">

 </span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> frm_MainForm()
 {
 InitializeComponent();
 }

 </span><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> btnNew_Click(</span><span style="color: rgb(0,0,255)">object</span><span style="color: rgb(0,0,0)"> sender , EventArgs e)
 {
 SaveFileDialog sf </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> SaveFileDialog();
 sf.Title </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">新建XML文件 </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;
 sf.Filter </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">XML文件(*.xml)|*.xml</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;
 sf.ShowDialog(</span><span style="color: rgb(0,0,255)">this</span><span style="color: rgb(0,0,0)">);
 myMethod_XMLwriter(sf.FileName);

 rtb_Editor.Text </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> File.ReadAllText(sf.FileName);
 }

 </span><span style="color: rgb(0,0,255)">private</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> myMethod_XMLwriter(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> filename)
 {
 </span><span style="color: rgb(0,0,255)">if</span><span style="color: rgb(0,0,0)"> ( filename </span><span style="color: rgb(0,0,0)">!=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">""</span><span style="color: rgb(0,0,0)"> )
 {
 groupBox1.Enabled </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">true</span><span style="color: rgb(0,0,0)">;

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">创建一个XML文档对象</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> XmlDocument xmlDoc </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> XmlDocument();

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">加入XML声明。</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlDoc.AppendChild(xmlDoc.CreateXmlDeclaration(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">1.0</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> , </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">UTF-8</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> , </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">yes</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">));

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">加入XML注释。</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlDoc.AppendChild(xmlDoc.CreateComment(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">注释</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">));

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">加入空行。</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlDoc.AppendChild(xmlDoc.CreateWhitespace(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)"> \n</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">));

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">创建一个根节点
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">XmlElement xmlRoot = xmlDoc.CreateElement("root"); 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">创建一个根节点(带命名空间)</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> XmlElement xmlRoot </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> xmlDoc.CreateElement(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">YE</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> , </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">root</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)"> , </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">http://www.smartsoso.com</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">添加根节点</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlDoc.AppendChild(xmlRoot);


 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">添加【CDATA数据】。
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">xmlRoot.AppendChild(xmlDoc.CreateCDataSection("CDATA数据"));

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">创建一个子节点</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> XmlElement bgcolor </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> xmlDoc.CreateElement(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">bgcolor</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 bgcolor.SetAttribute (</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">ID</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">yeye</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">);
 bgcolor.InnerText </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">red</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">;</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">子节点的值</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlRoot.AppendChild(bgcolor);</span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">添加到根节点中

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">保存到文件。</span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> xmlDoc.Save(filename);





 </span><span style="color: rgb(0,128,0)">/*</span><span style="color: rgb(0,128,0)">
 //读
 //创建一个XML对象
 XmlDocument myxml = new XmlDocument();

 // 读取已经有的xml
 myxml.Load(Filename);

 //声明一个节点存储根节点
 XmlNode movie = myxml.DocumentElement;

 //遍历根节点下的子节点
 foreach ( XmlNode var in movie.ChildNodes )
 {
 //Console.WriteLine(var.Name);//获取根节点的名称
 //Console.WriteLine(var.InnerText);//获取根节点的值！
 rtb_Editor.Text += var.Name;
 rtb_Editor.Text += var.InnerText;


 }
 </span><span style="color: rgb(0,128,0)">*/</span><span style="color: rgb(0,0,0)">


 }
 }
 }
}
</span></div>
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