private void tv_lx_AfterSelect(object sender, TreeViewEventArgs e) { if (str_bh == "") { return; } if (tv_lx.SelectedNode.Tag.ToString().Trim() == "0") { return; } MyTreeNode node = (MyTreeNode)tv_lx.SelectedNode; string str_lxbh = node.Tag.ToString().Trim();//¿ÆÊÒID lv_jb1.Items.Clear(); DataTable dt_tj_zhxm_hd = ywszbiz.Get_tj_suggestion(str_lxbh, str_bh); foreach (DataRow dr in dt_tj_zhxm_hd.Rows) { MyListViewItem item = new MyListViewItem(); item.Text = dr["keyword"].ToString().Trim(); item.Tag = dr["jbbh"].ToString().Trim(); item.Str1 = dr["tjlx"].ToString().Trim(); lv_jb1.Items.Add(item); } if (tv_lx.SelectedNode.Nodes.Count == 0) { tv_lx.SelectedNode.SelectedImageIndex = tv_lx.SelectedNode.ImageIndex; } }