我想把<add key="iSystemConfig" value="DataAccess.SystemConfig"/>里面的value改变不知怎么改???下面是我的代码
Configuration configuration = ConfigurationManager.OpenExeConfiguration(@"C:\Documents and Settings\Administrator\桌面\MyDemo\WindowsApplication-Print\App.config");
AppSettingsSection assSection = configuration.AppSettings; assSection.Settings["iSystemConfig"].Value = "AAA";
configuration.Save();路径没错的,或者其它办法也行
Configuration configuration = ConfigurationManager.OpenExeConfiguration(@"C:\Documents and Settings\Administrator\桌面\MyDemo\WindowsApplication-Print\App.config");
AppSettingsSection assSection = configuration.AppSettings; assSection.Settings["iSystemConfig"].Value = "AAA";
configuration.Save();路径没错的,或者其它办法也行
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AppSettingsSection assSection = configuration.AppSettings;
assSection.Settings["iSystemConfig"].Value = "AAA";
configuration.Save();
这么改是可以的, 但是save之后要强制刷新appsetting 有提供方法的,叫什么忘了
ExeConfigurationFileMap filemap = new ExeConfigurationFileMap();
filemap.ExeConfigFilename = (@"C:\Documents and Settings\Administrator\桌面\MyDemo\WindowsApplication-Print\App.config";
Configuration configuration = ConfigurationManager.OpenMappedExeConfiguration(filemap,ConfigurationUserLevel.None);
AppSettingsSection assSection = configuration.AppSettings;
assSection.Settings["iSystemConfig"].Value = "AAA";
configuration.Save();
如果要指定配置文件的话,我一般是用OpenMappedExeConfiguration,而不是用OpenExeConfiguration
楼主可以试试
configuration.AppSettings.Settings["iSystemConfig"].Value = "AAAA";
configuration.Save();
注意,起作用的是与你的.exe同名的.config文件。
string _xmp = (@"C:\Documents and Settings\Administrator\桌面\MyDemo\WindowsApplication-Print\App.config");//web.config地址//当然要有权限
XmlDocument _xmld = new XmlDocument();
_xmld.Load(_xmp);
XmlNode xn = _xmld.SelectSingleNode("configuration/appSettings/add[@key=‘iSystemConfig’]");
if (xn != null)
xn.Attributes["value"].InnerText = “AAA”;
_xmld.Save(_xmp);
/// 修改config文件节点
/// </summary>
/// <param name="key"></param>
public static bool ChangeToFile(string key, string value, string fileName)
{
try
{
XmlDocument doc = new XmlDocument();
doc.Load(AppDomain.CurrentDomain.BaseDirectory + fileName);
XmlNode node = doc.SelectSingleNode(@"//add[@key='" + key + "']");
XmlElement ele = (XmlElement)node;
ele.SetAttribute("value", value);
doc.Save(AppDomain.CurrentDomain.BaseDirectory + fileName);
return true;
}
catch (Exception e)
{
return false;
}
}