XML与TreeView

  1。treeview代码书写

        private void Form1_Load(object sender, EventArgs e)
        {
                   //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)
        {
                  //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)
        {
                      //删除选中项
            treeView1.SelectedNode.Remove();
        }

 2.XML基本用法

     1XML文件

<?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>

  2 解析XML文件

  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();