using System;
using
System.Collections.Generic;
using System.ComponentModel;
using
System.Windows.Forms;
using System.Xml;
using System.Text;
using
System.IO;
/// <summary>
///
改自http://www.codeproject.com/cs/miscctrl/treeviewxml.asp
/// 原作者：UsualDosage.
/// 改： kenlistian
/// </summary>
namespace
xml2tree
{
public class Xml2TreeList
{
private XmlTextWriter
xr;
string xmlfile;
public Xml2TreeList(string
filename)
{
xmlfile = filename;
if (xmlfile == "")
{
xmlfile =
Application.ProductName + ".xml";
}
}
//写到xml文件中
public void
ToXml(TreeView tv,string sFileName)
{
if (sFileName == "")
sFileName =
xmlfile;
xr = new XmlTextWriter(sFileName,
System.Text.Encoding.UTF8);
xr.WriteStartDocument();
xr.WriteStartElement(tv.Nodes[0].Text);
foreach
(TreeNode node in
tv.Nodes)
{
saveNode2(node.Nodes);
}
xr.WriteEndElement();
xr.Close();
}
//从xml文件中读出到treeview中
//
sFileName 读取的文件名
// TreeView 传入的控件树
public bool ToTreeView(TreeView tv,
string sFileName)
{
if (sFileName == "")
sFileName =
xmlfile;
try
{
XmlDocument xDoc = new
XmlDocument();
xDoc.Load(sFileName);
tv.Nodes.Clear();
tv.Nodes.Add(new
TreeNode(xDoc.DocumentElement.Name));
TreeNode tNode = new
TreeNode();
tNode =
(TreeNode)tv.Nodes[0];
addTreeNode(xDoc.DocumentElement,
tNode);
tv.ExpandAll();
}
catch (XmlException xExc)
{
// sMsg =
xExc.Message;
return false;
}
catch (Exception ex)
{
//sMsg =
ex.Message
return false;
}
finally
{
}
return
true;
}
//
private void
saveNode2(TreeNodeCollection tnc)
{
foreach (TreeNode node in
tnc)
{
if (node.Nodes.Count >
0)
{
xr.WriteStartElement(node.Text);
saveNode2(node.Nodes);
xr.WriteEndElement();
}
else
{
xr.WriteString(node.Text);
}
}
}
//
private
void addTreeNode(XmlNode xmlNode, TreeNode treeNode)
{
XmlNode
xNode;
TreeNode tNode;
XmlNodeList xNodeList;
if
(xmlNode.HasChildNodes)
{
xNodeList = xmlNode.ChildNodes;
for (int x =
0; x <= xNodeList.Count - 1; x++)
{
xNode =
xmlNode.ChildNodes[x];
treeNode.Nodes.Add(new TreeNode(xNode.Name));
tNode
= treeNode.Nodes[x];
addTreeNode(xNode,
tNode);
}
}
else
treeNode.Text =
xmlNode.OuterXml.Trim();
}
}
/*
采用XmlTextWriter方法是一种写xml文件的方法
* 采用StreamWriter 方法也是一种xml文件的方法
private
StreamWriter sr;
public void exportToXml(TreeView tv, string filename)
{
sr = new StreamWriter(filename, false,
System.Text.Encoding.UTF8);
//Write the header
sr.WriteLine("<?xml
version=\"1.0\" encoding=\"utf-8\" ?>");
//Write our root
node
sr.WriteLine("<" + treeView1.Nodes[0].Text + ">");
foreach
(TreeNode node in tv.Nodes)
{
saveNode(node.Nodes);
}
//Close the
root node
sr.WriteLine("</" + treeView1.Nodes[0].Text +
">");
sr.Close();
}
private void saveNode(TreeNodeCollection
tnc)
{
foreach (TreeNode node in tnc)
{
//If we have child nodes,
we'll write
//a parent node, then iterrate through
//the children
if
(node.Nodes.Count > 0)
{
sr.WriteLine("<" + node.Text +
">");
saveNode(node.Nodes);
sr.WriteLine("</" + node.Text +
">");
}
else //No child nodes, so we just write the
text
sr.WriteLine(node.Text);
}
}
*/
}