XPathNavigator and TreeView : XPath « XML « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. XML
3. XPath

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.XPath;


    public class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }

        private void button1_Click(object sender, EventArgs e)
        {
            XPathDocument doc = new XPathDocument(Application.StartupPath + @"\employees.xml");
            XPathNavigator navigator = doc.CreateNavigator();
            navigator.MoveToRoot();
            navigator.MoveToFirstChild();

            TreeNode root = treeView1.Nodes.Add("Employees");

            while (navigator.MoveToNext())
            {
                if (navigator.HasChildren)
                {
                    navigator.MoveToFirstChild();
                    do
                    {
                        string id = navigator.GetAttribute("employeeid", "");
                        TreeNode empnode = new TreeNode("Employee ID :" + id);
                        root.Nodes.Add(empnode);
                        navigator.MoveToFirstChild();
                        do
                        {
                            string name = navigator.Name;
                            TreeNode node = new TreeNode(name + " : " + navigator.Value);
                            empnode.Nodes.Add(node);
                        }
                        while (navigator.MoveToNext());
                        navigator.MoveToParent();
                    }
                    while (navigator.MoveToNext());
                }
            }

        }
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.treeView1 = new System.Windows.Forms.TreeView();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(120, 224);
            this.button1.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(100, 28);
            this.button1.TabIndex = 0;
            this.button1.Text = "Load Tree";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // treeView1
            // 
            this.treeView1.Dock = System.Windows.Forms.DockStyle.Top;
            this.treeView1.Location = new System.Drawing.Point(0, 0);
            this.treeView1.Name = "treeView1";
            this.treeView1.Size = new System.Drawing.Size(329, 216);
            this.treeView1.TabIndex = 1;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(329, 262);
            this.Controls.Add(this.treeView1);
            this.Controls.Add(this.button1);
            this.Font = new System.Drawing.Font("Microsoft Sans Serif", 10F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }


        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TreeView treeView1;
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }