private void tv_jyzhxm_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e) { if (object.Equals(e.Node.Tag, null)) { return; } txt_zhxmmc.Text = e.Node.Text; txt_zhxmbh.Text = e.Node.Tag.ToString(); DataTable dt = lisbiz.Get_TJ_JGZHXMDZB(e.Node.Tag.ToString()); if (dt.Rows.Count > 0) { txt_jyzhbh.Text = dt.Rows[0]["GJC"].ToString(); txt_sm.Text = dt.Rows[0]["SM"].ToString().Trim(); cmb_jydyxz.SelectedValue = dt.Rows[0]["SBID"].ToString(); } else { txt_jyzhbh.Text = ""; txt_sm.Text = ""; cmb_jydyxz.SelectedValue = -1; } }