读取TreeView内容写到Xml。

Question

本帖最后由 binjoo 于 2009-06-06 18:37:23 编辑

Answer 1

        /// <summary>
        /// 将TreeView保存到XML文件中
        /// </summary>
        /// <param name="saveXmlDlg">保存文件对话框</param>
        /// <param name="treeViewControl">节点集合</param>
        public void SaveTreeViewToXml(SaveFileDialog saveXmlDlg, TreeView treeViewControl)
        {
            saveXmlDlg.DefaultExt = "xml";
            saveXmlDlg.Filter = "XML Files (*.xml)|*.xml";
            saveXmlDlg.FilterIndex = 1;
            if (saveXmlDlg.ShowDialog() == DialogResult.OK)
            {
                XmlDocument doc = new XmlDocument();
                doc.LoadXml("<分类体系></分类体系>");
                XmlNode root = doc.DocumentElement;
                doc.InsertBefore(doc.CreateXmlDeclaration("1.0", "utf-8", "yes"), root);
                TreeNodeToXml(treeViewControl.TopNode.Nodes, root);
                doc.Save(saveXmlDlg.FileName);
            }
        }       /// <summary>
        /// 递归的方法读取TreeView控件所有节点并填入XML文件
       /// </summary>
       /// <param name="treeNodes">所有节点集合</param>
       /// <param name="xmlNode">xml文档中的单个节点</param>
        public void TreeNodeToXml(TreeNodeCollection treeNodes, XmlNode xmlNode)
        {
            XmlDocument doc = xmlNode.OwnerDocument;
            foreach (TreeNode treeNode in treeNodes)
            {
                //创建一个xml元素（element）
                XmlNode element = doc.CreateNode("element", treeNode.Name.ToString(), "");
                //创建一个属性Name
                XmlAttribute attr = doc.CreateAttribute("Name");
                //为属性赋值
                attr.Value = treeNode.Text;
                //为该元素添加属性
                element.Attributes.Append(attr);
                //添加元素
                xmlNode.AppendChild(element);
                if (treeNode.Nodes.Count > 0)
                {
                    TreeNodeToXml(treeNode.Nodes, element);
                }
            }
        }

Answer 2

读 treeview 里面的 treenode.text 域就是显示的文本。按树的结构进行迭代。使用 XMLWriter 类进行写XML文件。TreeView 类TreeNode 类XmlWriter 类用 XmlWriter 编写 XML

Answer 3

 class TreeExXMLCls
    {
        private TreeView thetreeview;
        private string xmlfilepath;
        XmlTextWriter textWriter;
        XmlNode Xmlroot;
        XmlDocument textdoc;
        public TreeExXMLCls()
        {
            textdoc = new XmlDocument();
        }
        public int TreeToXML(TreeView TheTreeView, string XMLFilePath)
        {
            thetreeview = TheTreeView;
            xmlfilepath = XMLFilePath;
            textWriter = new XmlTextWriter(xmlfilepath, null);
            textWriter.Formatting = Formatting.Indented;
            textWriter.WriteStartDocument();
            textWriter.WriteComment("this XML is created from a tree");
            textWriter.WriteComment("");
            textWriter.WriteStartElement("TreeExXMLCls");
            textWriter.WriteEndElement();
            textWriter.WriteEndDocument();
            textWriter.Close();
            textdoc.Load(xmlfilepath);
            XmlElement Xmlnode=textdoc.CreateElement(thetreeview.Nodes[0].Text);
            Xmlroot = textdoc.SelectSingleNode("TreeExXMLCls");
            TransTreeSav(thetreeview.Nodes, (XmlElement)Xmlroot);
            return 0;
        }
        private int TransTreeSav(TreeNodeCollection nodes, XmlElement ParXmlnode) 
        {
            XmlElement xmlnode;
            Xmlroot = textdoc.SelectSingleNode("TreeExXMLCls");            foreach (TreeNode node in nodes)
            {
                xmlnode = textdoc.CreateElement(node.Text);
                ParXmlnode.AppendChild(xmlnode);                if (node.Nodes.Count > 0)
                {
                    TransTreeSav(node.Nodes, xmlnode);
                }
            }
            textdoc.Save(xmlfilepath);            return 0;
        }
        public int XMLToTree(string XMLFilePath,TreeView TheTreeView)
        {
            thetreeview = TheTreeView;
            xmlfilepath = XMLFilePath;
            textdoc.Load(xmlfilepath);
            XmlNode root = textdoc.SelectSingleNode("TreeExXMLCls");
            foreach (XmlNode subXmlnod in root.ChildNodes)
            {
                TreeNode trerotnod = new TreeNode();
                trerotnod.Text = subXmlnod.Name;
                thetreeview.Nodes.Add(trerotnod);
                TransXML(subXmlnod.ChildNodes, trerotnod);
            }
            return 0;
        }        private int TransXML(XmlNodeList Xmlnodes,TreeNode partrenod)
        {
            foreach (XmlNode xmlnod in Xmlnodes)
            {
                TreeNode subtrnod = new TreeNode();
                subtrnod.Text = xmlnod.Name;
                partrenod.Nodes.Add(subtrnod);                if (xmlnod.ChildNodes.Count > 0)
                {
                    TransXML(xmlnod.ChildNodes, subtrnod);
                }
            }
            return 0;
        }
    }
参考

Answer 4

            XmlDocument computerXml = new XmlDocument();
            computerXml.Load("../../computer.xml");
            XmlNode root = computerXml.DocumentElement;
            TreeNode tvRoot=null;
            TreeNode tvContent;
            foreach (XmlNode sort in root.ChildNodes) {
                foreach (XmlNode s in sort.ChildNodes) {
                   switch(s.Name){
                       case "Name":
                           //Console.WriteLine(s.InnerText);
                           tvRoot = treeView1.Nodes.Add(s.InnerText);
                           break;
                       case "Content":
                           foreach(XmlNode x in s.ChildNodes){
                               switch (x.Name) { 
                                   case "Title":
                                      // Console.WriteLine(x.InnerText);
                                       tvContent = tvRoot.Nodes.Add(x.InnerText);
                                       break;
                                   //case "Database":
                                   //   Console.WriteLine(x.InnerText);
                                   //  break;
                               }
                           }
                           break;
                   }
                }
                
            }