yhFile.Add(menu);

                yhFile.Save(@"C:\XMLYhsj.xml");

                string lc_xml = @"C:\XMLYhsj.xml";

                Network network = new Network();

                network.UploadFile(lc_xml, @"ftp://100.100.0.1/yhcd1/XMLYhsj.xml",

"administrator", "1234567", false, 500);

                MessageBox.Show("用户添加成功 !", "系统提示", MessageBoxButtons.OK,

MessageBoxIcon.Asterisk);

                textBox9.Text = string.Empty;

            }

            catch (Exception el)

            {

                MessageBox.Show("用户添加失败 !" + el.Message, "系统提示",

MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                return;

            }

            //以下代码是自动产生新用户编码

            XElement root = XElement.Load(@"ftp://100.100.0.1/yhcd1/XMLYhsj.xml");

            IEnumerable<string> prices =

                from el in root.Elements("yhbm")

                select (string)el;

            if (prices.Count().ToString() == "0")

            {

                textBox1.Text = "0001";

            }

            else

            {

                string lc_max = prices.Max().ToString();

                int ln_max = int.Parse(lc_max) + 1;

                string lc_mx = ln_max.ToString().Trim();

                lc_yhbm = lc_mx.PadLeft(4, '0');