递归查询区域信息及子区域到advTree

效果：

  DataTable dtArea = new DataTable();

 private void Form1_Load(object sender, EventArgs e)
 {
 Node node1 = new Node();
 node1.Name = "";
 node1.Text = "所有区域";
 node1.DataKey = null;
 node1.TagString = "";
 advTree1.Nodes.Add(node1);

 dtArea = new DataTable();
 BaseServer.BaseInforClient bll = new BaseServer.BaseInforClient();

 Dt_areasInfo model = new Dt_areasInfo() { Category = EnumMakeNumber.dt_areas };
 BaseDtoOfDataSetymujubN2 dto = bll.QueryData(BaseServer.ExternalStructEnumOperateObj.查询, model);

 if (dto.Code == )
 {
 dtArea = dto.Data.Tables[];
 BindTree(dtArea, node1);
 }
 //展开
 advTree1.ExpandAll();
 //关闭
 //advTree1.CollapseAll();
 }
 public void BindTree(DataTable dt, Node node)
 {
 DataView dv = dt.DefaultView;
 dv.RowFilter = " pid=" + node.Name;
 DataTable dtnew = dv.ToTable();
 if (dtnew.Rows.Count > )
 foreach (DataRow item in dtnew.Rows)
 {
 Node nodec = new Node();
 nodec.Name = item["id"].ToString();
 nodec.Text = "(" + item["id"].ToString() + ")" + item["name"].ToString();
 nodec.DataKey = item;
 nodec.TagString = item["sort"].ToString();
 node.Nodes.Add(nodec);
 BindTree(dt, nodec);
 }
 }

 private void advTree1_AfterSelect(object sender, EventArgs e)
 {
 if (advTree1.SelectedNode != null)
 {
 MessageBox.Show(advTree1.SelectedNode.Text);
 }
 }

转载请注明出入来源：https://www.cnblogs.com/famhuai/p/8252922.html