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("用户修改成功 !", "系统提示", MessageBoxButtons.OK,

 MessageBoxIcon.Asterisk);

            }

            catch (Exception el)

            {

                MessageBox.Show("用户修改失败 !" + el.Message, "系统提示",

MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                return;

            }

        }

单击按钮事件中介绍用户删除并存入XML文件代码：

        private void button2_Click(object sender, EventArgs e)

        {

            string lc_yhbm = textBox1.Text.Trim();

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

            try

            {