Get ancestors list in an XML document
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Xml;
namespace ReadXmlDemo
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : Form
{
private Button button1;
private Container components = null;
public static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
InitializeComponent();
}
protected override void Dispose(bool disposing)
{
if (disposing) {
if (components != null) {
components.Dispose();
}
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new Point(176, 48);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "button1";
this.button1.Click += new EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new Size(6, 14);
this.ClientSize = new Size(292, 273);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
private void button1_Click(object sender, EventArgs e)
{
Setup();
string url = "/pmanager/scm/frmscmindex.aspx";
string param = "projectid";
XmlNode[] ancestors = GetAncestorNodeList(url, param);
// test results
if (ancestors != null) {
foreach (XmlNode node in ancestors)
MessageBox.Show(node.OuterXml);
}
}
private XmlDocument doc;
/// <summary>
/// 加载 Xml 文档
/// </summary>
private void Setup()
{
doc = new XmlDocument();
try {
doc.Load(Application.StartupPath + "\\nav.xml");
}
catch {
throw new Exception("Xml 文件加载失败。");
}
}
/// <summary>
/// 得到指定节点的祖先节点的数组(强类型)
/// </summary>
/// <param name="url"></param>
/// <param name="param"></param>
/// <returns></returns>
private XmlNode[] GetAncestorNodeList(string url, string param)
{
XmlNode targetNode = doc.SelectSingleNode("//siteMapNode[@url='" + url + "' and @param='" + param + "']");
if (targetNode == null)
return null;
ArrayList alAncestors = new ArrayList();
for (XmlNode node = targetNode.ParentNode;
node != null && node != doc.DocumentElement;
node = node.ParentNode) {
alAncestors.Add(node);
}
alAncestors.Reverse();
XmlNode[] nodeList = (XmlNode[]) alAncestors.ToArray(typeof (XmlNode));
return nodeList;
}
}
}
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Xml;
namespace ReadXmlDemo
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : Form
{
private Button button1;
private Container components = null;
public static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
InitializeComponent();
}
protected override void Dispose(bool disposing)
{
if (disposing) {
if (components != null) {
components.Dispose();
}
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new Point(176, 48);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "button1";
this.button1.Click += new EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new Size(6, 14);
this.ClientSize = new Size(292, 273);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
private void button1_Click(object sender, EventArgs e)
{
Setup();
string url = "/pmanager/scm/frmscmindex.aspx";
string param = "projectid";
XmlNode[] ancestors = GetAncestorNodeList(url, param);
// test results
if (ancestors != null) {
foreach (XmlNode node in ancestors)
MessageBox.Show(node.OuterXml);
}
}
private XmlDocument doc;
/// <summary>
/// 加载 Xml 文档
/// </summary>
private void Setup()
{
doc = new XmlDocument();
try {
doc.Load(Application.StartupPath + "\\nav.xml");
}
catch {
throw new Exception("Xml 文件加载失败。");
}
}
/// <summary>
/// 得到指定节点的祖先节点的数组(强类型)
/// </summary>
/// <param name="url"></param>
/// <param name="param"></param>
/// <returns></returns>
private XmlNode[] GetAncestorNodeList(string url, string param)
{
XmlNode targetNode = doc.SelectSingleNode("//siteMapNode[@url='" + url + "' and @param='" + param + "']");
if (targetNode == null)
return null;
ArrayList alAncestors = new ArrayList();
for (XmlNode node = targetNode.ParentNode;
node != null && node != doc.DocumentElement;
node = node.ParentNode) {
alAncestors.Add(node);
}
alAncestors.Reverse();
XmlNode[] nodeList = (XmlNode[]) alAncestors.ToArray(typeof (XmlNode));
return nodeList;
}
}
}