我的App.Config文件没有保存我修改的任何内容 [英] My App.Config file isn't saving anything I modify

问题描述

这是我的代码:

public void VerifyIfFirstTimeRun()
    {
        if (System.Configuration.ConfigurationSettings.AppSettings["FirstTimeRunning"] == "true")
        {
            //Do bla bla bla
            //Then do bla bla bla
            System.Configuration.ConfigurationSettings.AppSettings["FirstTimeRunning"] = "false";     
        }            
    }

问题是，我正在用F5键进行测试，它会启动，并确保使用断点足够显示它确实在If条件中，但是当我停止"应用程序并再次按F5时，它将消失如果条件再次出现在内部.这是标准的操作程序吗?

如果是这样，我如何测试它是否正常工作?

解决方案

这与App.config文件用于...的精神背道而驰，但是要回答您的问题，您需要执行System.Configuration. Configuration.Save().

App.config通常用于配置数据库连接，提供程序等.通常在安装时设置一次.建议将用户设置放入单独的配置文件user.config中.参见此以获取说明.

System.Configuration.Configuration 类.

注意-现在，我了解了为什么您使用这些设置，我可以建议另一种方法吗?您可能应该只检查文件是否存在:

if (!File.Exists("thefilepath"))
{
    AlertUserOfMissingFile();
    ChooseNewFile();
}

以这种方式更安全，因为将设置设置为true并不一定意味着文件就在您认为的位置.

Here's my code:

public void VerifyIfFirstTimeRun()
    {
        if (System.Configuration.ConfigurationSettings.AppSettings["FirstTimeRunning"] == "true")
        {
            //Do bla bla bla
            //Then do bla bla bla
            System.Configuration.ConfigurationSettings.AppSettings["FirstTimeRunning"] = "false";     
        }            
    }

Problem is, I'm testing this with the F5 key, it boots up and sure enough using a breakpoint shows that it is indeed going inside the If Condition, but when I "Stop" the application and press F5 again it goes inside the If Condition AGAIN. Is this standard operational procedures?

If so, how can I test if its working?

解决方案

This is going against the spirit of what the App.config file is used for ... but to answer your question, you need to do System.Configuration.Configuration.Save().

Edit:
App.config is typically used to configure database connections, providers, etc. And is usually set once at installation. It's suggested that user settings go into a separate config file user.config. See this for the explanation.

Edit:
System.Configuration.Configuration class.

Note - now that I read why you're using these settings, may I suggest another way? You should probably just check if the file is there:

if (!File.Exists("thefilepath"))
{
    AlertUserOfMissingFile();
    ChooseNewFile();
}

It's safer this way anyhow because having a setting set to true doesn't necessarily mean the file is where you think it is.

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