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//递归遍历节点内容,最关键的函数 private void parseNode(TreeNode tn) { IEnumerator ie = tn.Nodes.GetEnumerator(); while (ie.MoveNext()) { TreeNode ctn = (TreeNode) ie.Current; //为最底层节点,即该节点为RSS节点 if (ctn.GetNodeCount(true) == 0) { xmlLine = GetRSSText(ctn); sr.WriteLine(xmlLine); }
  /**//*------------------------------------------------------------- * 作者:刘晓松 * 版本:1.0.0 * 日期:2006.10.29 * 描述:将TreeView中导出为XML数据 -------------------------------------------------------------*/ using System;using System.Collections;using System.IO; using System.Windows.Forms;namespace TreeViewExport...{ /**//// <summary> /// 将TreeView中导出为XML数据 /// </summary> public class TreeViewToXmlB ...{ //XML每行的内容 private string xmlLine = ""; //用于写XML文件 private StreamWriter sr; /**//// <summary> /// 构造函数 /// </summary> public TreeViewToXmlB() ...{ } /**//// <summary> /// 将TreeView中导出为XML数据 /// </summary> /// <param name="tv">TreeView控件</param> /// <param name="filename">XML文件的保存路径</param> public void exportToXml(TreeView tv, string filename) ...{ sr = new StreamWriter(filename, false, System.Text.Encoding.UTF8); //写文件头部内容 //下面是生成RSS的OPML文件 sr.WriteLine("<?xml version="1.0" encoding="UTF-8"?>"); sr.WriteLine("<opml version="1.0">"); sr.WriteLine("<head>"); sr.WriteLine("<title>RSS</title>"); sr.WriteLine("</head>"); sr.WriteLine("<body>"); //遍历根节点 foreach (TreeNode node in tv.Nodes) ...{ if (node.GetNodeCount(true) == 0) ...{ xmlLine = GetRSSText(node); } else ...{ xmlLine = GetDirectoryText(node); } sr.WriteLine(xmlLine); //递归遍历节点 parseNode(node); } //写文件尾部内容 sr.WriteLine("</body>"); sr.WriteLine("</opml>"); sr.Close(); } //递归遍历节点内容,最关键的函数 private void parseNode(TreeNode tn) ...{ IEnumerator ie = tn.Nodes.GetEnumerator(); while (ie.MoveNext()) ...{ TreeNode ctn = (TreeNode) ie.Current; //为最底层节点,即该节点为RSS节点 if (ctn.GetNodeCount(true) == 0) ...{ xmlLine = GetRSSText(ctn); sr.WriteLine(xmlLine); } else//不是最底层节点,即该节点为目录节点 ...{ xmlLine = GetDirectoryText(ctn); sr.WriteLine(xmlLine); } //如果还有子节点则继续遍历 if (ctn.GetNodeCount(true) > 0) ...{ parseNode(ctn); } } sr.WriteLine("</outline>"); } //成生RSS节点的XML文本行 private string GetRSSText(TreeNode node) ...{ //根据Node属性生成XML文本 string rssText = "<outline type="rss" text="" + node.Text + "" xmlUrl="URL"/>"; return rssText; } //成生目录节点的XML文本行 private string GetDirectoryText(TreeNode node) ...{ //根据Node属性生成XML文本 string directoryText = "<outline text="" + node.Text + "">"; return directoryText; } }} |
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