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protected void Page_Load(object sender, EventArgs e)
  {

   
  if (!IsPostBack)
  {
  BindTree();
  }
  }
  /// <summary>
  /// °ó¶¨Óû§Ê÷
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  private void BindTree()
  {
  this.treeUser.Nodes.Clear();
  BindParent();
  string str = "SELECT UserID,Name,SuperiorParent from umUserAccount WHERE UserID<>1 ORDER BY UserID,Rank";
  DataTable dtTmp = DBHelper.Query(str).Tables[0];
  if (dtTmp.Rows.Count > 0)
  {
  TreeNode nodeTmp;
  string parentTmp = string.Empty;
  for (


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