private void tlbtnDel_Click(object sender, EventArgs e) { if (ID == 0) { MessageBox.Show("请选择将要删除的系统用户!", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } baseinfo.DeleteSysUser(ID); MessageBox.Show("系统用户--删除成功!", "成功提示", MessageBoxButtons.OK, MessageBoxIcon.Information); dgvSysUserList.DataSource = baseinfo.GetAllUser().Tables[0].DefaultView; this.SetHeadText(); }