treeView 递归 生成xml

XmlTextWriter tw;

public void WriteXML(TreeNodeCollection tc)

{

    foreach (TreeNode Node in tc)

    {

        WriteOneXML(Node);

        WriteXML(Node.Nodes);

        tw.WriteEndElement();

    }

}

 

private void WriteOneXML(TreeNode Node)

{

    string objid = Node.Tag.ToString();

    string objName = Node.Text;

 

    tw.WriteStartElement("cantoncode" + (Node.Level + 1));

    tw.WriteAttributeString("cantoncode", objid);

    tw.WriteAttributeString("cantonname", objName);

 

}

 

private void button3_Click(object sender, EventArgs e)

{

 

    string fileName = @"C:\cantoncode.xml";

    tw = new XmlTextWriter(fileName, null);

    tw.Formatting = Formatting.Indented;

    tw.WriteStartDocument();

 

    tw.WriteStartElement("cantoncode");

    WriteXML(treeView1.Nodes);

 

    tw.WriteEndElement();

    tw.WriteEndDocument();

    tw.Flush();

    tw.Close();

}