递归构建节点树

 /// <summary>
  /// 递归构建节点树
  /// </summary> 
  private void CreateTreeNode(string id,TreeNode TreeViewControl)
  {
   TreeNode tempNode=null;
   string selectString=null; 
   int childId = 0;

   selectString="ParentID=" + id + ""; 

   DataRow[] dataRows = treeDataSet.Tables["TreeViewTable"].Select(selectString); //搜索当前节点的所有子节点

   foreach(DataRow dr in dataRows)
   {
    tempNode = new TreeNode(); 
    childId = Convert.ToInt32(dr["id"]);
    tempNode.Text = dr["NodeName"].ToString();
    TreeViewControl.Nodes.Add(tempNode);   //添加子节点
    CreateTreeNode(childId,tempNode);
   }
  }