怎么修改不了啊,哪位大虾帮忙看看

Question

        private void button1_Click(object sender, EventArgs e)
        {
            string xmlfile = AppDomain.CurrentDomain.BaseDirectory + @"\Dcms.Crm.UI.exe.config";
            XmlDocument xmdoc = new XmlDocument();
            xmdoc.Load(xmlfile);
            XmlNodeList nodelist = xmdoc.SelectSingleNode("/configuration/appSettings").ChildNodes;
            if (this.radioButton1.Checked == true)
            {
                foreach (XmlNode xn in nodelist)
                {
                    XmlElement xe = (XmlElement)xn;
                    if (xe.GetAttribute("key") == "ServerURL")
                    {
                        xe.SetAttribute("value", "http://" + this.textBox4.Text + "/" + textBox2.Text);
                        break;
                    }                }
            }
            else if (this.radioButton2.Checked == true)
            {
                foreach (XmlNode xn in nodelist)
                {
                    XmlElement xe = (XmlElement)xn;
                    if (xe.GetAttribute("key") == "ServerURL")
                    {
                        xe.SetAttribute("value", "http://" + this.textBox3.Text + "/" + textBox2.Text);
                        break;
                    }                }
            }
        }xml文件
<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <appSettings file="">
    <clear />
    <add key="LocalDbSource" value="Provider='Microsoft.Jet.OLEDB.4.0'; Data Source='c:\\CrmTest.mdb'" />
    <add key="FileNeedReset" value="Y" />
    <add key="SyncServerName" value="127.0.0.1" />
    <add key="RemotePort" value="8043" />
    <add key="ConnectType" value="Dcms.Common.ConnectWebService, Dcms.Common" />
    <add key="ServerURL" value="http://192.168.1.199/Dcms.Server.ZhiZhong.WebService/GeneralWebService.asmx" />
  </appSettings>

Answer 1

最后加个  xmdoc.Save(xmlfile);  取出来只改内存 ...保存回去把.