private void DataBind() { str_JykCode = xtbiz.GetXtCsz("JykCode");//检验科代码 //检验小组获取 cmb_jydyxz.DataSource = lisbiz.Get_PGroup(); cmb_jydyxz.DisplayMember = "CName"; cmb_jydyxz.ValueMember = "SectionNo"; cmb_jydyxz.SelectedValue = -1; //获取组合项目 DataTable dt_tj_lclxb = lisbiz.Get_TJ_LCLXB(); foreach (DataRow dr in dt_tj_lclxb.Rows) { TreeNode node1 = new TreeNode(dr["mc"].ToString()); string str_lclx = dr["lclx"].ToString(); DataTable dt_tj_tjxmb = lisbiz.Get_TJ_ZHXM_HD(str_JykCode, str_lclx); foreach (DataRow drs in dt_tj_tjxmb.Rows) { TreeNode node2 = new TreeNode(); node2.Text = drs["mc"].ToString().Trim(); node2.Tag = drs["bh"].ToString().Trim(); node1.Nodes.Add(node2); } tv_jyzhxm.Nodes.Add(node1); } }