xml和TreeView

 1。TreeView代码代码：

private void Form1_Load(object sender, EventArgs e)
{<br>                   //代码为TreeView添加子项
    treeView1.ContextMenuStrip = contextMenuStrip1;
    TreeNode tn = new TreeNode("默认");
    
    treeView1.Nodes.Add(tn);
 
}
 
private void button1_Click(object sender, EventArgs e)
{<br>                  //代码为TreeView添加子项
    string text = textBox1.Text;
    TreeNode tn = new TreeNode(text);
    TreeNode tr = treeView1.SelectedNode;
    tr.Nodes.Add(tn);
 
}
 
private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
{<br>                      //删除选中项
    treeView1.SelectedNode.Remove();
}

 2.XML基本用法

<?xml version="1.0" encoding="utf-8" ?>
<Computers>
   
 
<Computer typr="222">
 
  <Name>LenovoY460</Name>
 
  <Price>5000</Price>
  <CPU>酷睿i3</CPU>
   
   
</Computer>
 
 
  <Computer typr="2223">
 
    <Name>Dell</Name>
 
    <Price>7000</Price>
    <CPU>酷睿i7</CPU>
 
 
  </Computer>
   
   
</Computers>






























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XmlDocument doc = new XmlDocument();
          doc.Load("XMLFile1.xml");
          XmlNode xn = doc.DocumentElement;
          foreach (XmlNode item in xn.ChildNodes) {
 
              //foreach (XmlNode item1 in item.ChildNodes) {
 
                  switch (item1.Name) {
                   
                     case "Name":
                        Console.WriteLine("电脑的名字是：" + item1.InnerText);
                          break;
                      case "Price":
                         Console.WriteLine("电脑的价格是：" + item1.InnerText);
                         break;
                      case "CPU":
                            Console.WriteLine("电脑的CPU是：" + item1.InnerText);
                          break;
                   
                  
                   
                 }
               
               
              }
              Console.WriteLine(item.Attributes["typr"].Value);
              Console.WriteLine("电脑的名字是：" + item["Name"].InnerText);
              Console.WriteLine("电脑的Price是：" + item["Price"].InnerText);
              Console.WriteLine("电脑的CPU是：" + item["CPU"].InnerText);
          }
          Console.ReadKey();