private void bt_delete_Click(object sender, EventArgs e) { if (str_dwbh == "" || str_fzbh == "") { return; } DialogResult dlg = MessageBox.Show("确定要删除所选择的分组吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button2); if (dlg == DialogResult.Yes) { tjglbiz.Delete_TJ_DWFZ_HD(str_dwbh, str_fzbh); MessageBox.Show("删除成功!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); ClearControl(); tv_tjdw.Nodes.Remove(tv_tjdw.SelectedNode); str_fzbh = ""; } }