问题描述
我面临的一个问题。
我要保存app.config文件设置
i want to save settings in app.config file
我写了单独的类并定义了部分配置文件。
i wrote separate class and defined section in config file..
但是当我运行应用程序。它不保存在给定值到配置文件
but when i run the application. it does not save the given values into config file
下面是SettingsClass
here is SettingsClass
public class MySetting:ConfigurationSection
{
private static MySetting settings = ConfigurationManager.GetSection("MySetting") as MySetting;
public override bool IsReadOnly()
{
return false;
}
public static MySetting Settings
{
get
{
return settings;
}
}
[ConfigurationProperty("CustomerName")]
public String CustomerName
{
get
{
return settings["CustomerName"].ToString();
}
set
{
settings["CustomerName"] = value;
}
}
[ConfigurationProperty("EmailAddress")]
public String EmailAddress
{
get
{
return settings["EmailAddress"].ToString();
}
set
{
settings["EmailAddress"] = value;
}
}
public static bool Save()
{
try
{
System.Configuration.Configuration configFile = Utility.GetConfigFile();
MySetting mySetting = (MySetting )configFile.Sections["MySetting "];
if (null != mySetting )
{
mySetting .CustomerName = settings["CustomerName"] as string;
mySetting .EmailAddress = settings["EmailAddress"] as string;
configFile.Save(ConfigurationSaveMode.Full);
return true;
}
return false;
}
catch
{
return false;
}
}
}
这是从代码我在哪里保存在配置文件
and this is the code from where i am saving the information in config file
private void SaveCustomerInfoToConfig(String name, String emailAddress)
{
MySetting .Settings.CustomerName = name;
MySetting .Settings.EmailAddress = emailAddress
MySetting .Save();
}
，这是App.config中
and this is app.config
<configuration>
<configSections>
<section name="MySettings" type="TestApp.MySettings, TestApp"/>
</configSections>
<MySettings CustomerName="" EmailAddress="" />
</configuration>
u能告诉我哪里是错误..我想了很多，从互联网上读取。但仍无法保存信息的配置文件。
can u tell me where is the error.. i tried alot and read from internet. but still unable to save information in config file..
我跑通过exe文件也双击应用程序。
i ran the application by double clicking on exe file also.
推荐答案
据该的，
的方法访问运行时配置信息 它不能改变的。要更改配置，您可以使用您使用以下开放式方法之一获取配置文件的方式：
The ConfigurationManager.GetSection method accesses run-time configuration information that it cannot change. To change the configuration, you use the Configuration.GetSection method on the configuration file that you obtain by using one of the following Open methods:
的
的
不过，如果你要更新app.config文件，我会读它作为XML文档并操纵它作为一个正常的XML文档。
However, if you want to update app.config file, I would read it as an xml document and manipulate it as a normal xml document.
请参见下面的例子：
注：此示例只是为了证明概念。不应该在生产中使用，因为它是。
Please see the following example:Note: this sample is just for proof-of-concept. Should not be used in production as it is.
using System;
using System.Linq;
using System.Xml.Linq;
namespace ChangeAppConfig
{
class Program
{
static void Main(string[] args)
{
MyConfigSetting.CustomerName = "MyCustomer";
MyConfigSetting.EmailAddress = "[email protected]";
MyConfigSetting.TimeStamp = DateTime.Now;
MyConfigSetting.Save();
}
}
//Note: This is a proof-of-concept sample and
//should not be used in production as it is.
// For example, this is not thread-safe.
public class MyConfigSetting
{
private static string _CustomerName;
public static string CustomerName
{
get { return _CustomerName; }
set
{
_CustomerName = value;
}
}
private static string _EmailAddress;
public static string EmailAddress
{
get { return _EmailAddress; }
set
{
_EmailAddress = value;
}
}
private static DateTime _TimeStamp;
public static DateTime TimeStamp
{
get { return _TimeStamp; }
set
{
_TimeStamp = value;
}
}
public static void Save()
{
XElement myAppConfigFile = XElement.Load(Utility.GetConfigFileName());
var mySetting = (from p in myAppConfigFile.Elements("MySettings")
select p).FirstOrDefault();
mySetting.Attribute("CustomerName").Value = CustomerName;
mySetting.Attribute("EmailAddress").Value = EmailAddress;
mySetting.Attribute("TimeStamp").Value = TimeStamp.ToString();
myAppConfigFile.Save(Utility.GetConfigFileName());
}
}
class Utility
{
//Note: This is a proof-of-concept and very naive code.
//Shouldn't be used in production as it is.
//For example, no null reference checking, no file existence checking and etc.
public static string GetConfigFileName()
{
const string STR_Vshostexe = ".vshost.exe";
string appName = Environment.GetCommandLineArgs()[0];
//In case this is running under debugger.
if (appName.EndsWith(STR_Vshostexe))
{
appName = appName.Remove(appName.LastIndexOf(STR_Vshostexe), STR_Vshostexe.Length) + ".exe";
}
return appName + ".config";
}
}
}
我还添加了时间戳 。属性MySettings在app.config中轻松检查结果
I also added "TimeStamp" attribute to MySettings in app.config to check the result easily.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="MySettings" type="TestApp.MySettings, TestApp"/>
</configSections>
<MySettings CustomerName="" EmailAddress="" TimeStamp=""/>
</configuration>
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