C#中从HTML生成DOM TreeView的代码

//该过程将被递归调用
  //dom_node是当前的html dom节点
  //tree_node是当前插入树的结点
  private void insertdomnodes(ihtmldomnode parentnode,treenode tree_node)
  {
  
   int sibing=0;//当前结点在兄弟结点之间的顺序,所有的结点之间通过","隔开
   if(parentnode.haschildnodes())
   {
    //level++;
    //pathstring = pathstring +","+ level;
    ihtmldomchildrencollection allchild = (ihtmldomchildrencollection)parentnode.childnodes;
    int length = allchild.length;
    for(int i=0;i<length;i++)
    {
     string instring = pathstring;
     instring = instring +","+ sibing++;
     ihtmldomnode child_node = (ihtmldomnode)allchild.item(i);
     treenode tempnode = tree_node.nodes.add(child_node.nodename +"_"+instring);
     //string tmp =
     insertdomnodes(child_node,tempnode);
     pathstring = instring;
    }
   }
  }
  private void evipsbrowser_documentcomplete(object sender, axshdocvw.dwebbrowserevents2_documentcompleteevent e)
  {
   pathstring ="0";
   level = 0;
   domtreeview.nodes.clear();
   ihtmldocument3 htmldocument =(ihtmldocument3)evipsbrowser.document;
   ihtmldomnode rootdomnode = (ihtmldomnode)htmldocument.documentelement;
  
   treenode root = domtreeview.nodes.add("html"+"_"+pathstring);
   insertdomnodes(rootdomnode,root);
  }