无法在app.config上写入设置(或者不显示任何更改)

Question

我正在.net framework 4.5上创建一个应用程序

每当我想加载应用程序配置值(appSettings部分)并写入更改时,如果我刷新该部分,我看不到我的更改.我做错了什么？我该如何解决？

码

    private void LoadConfig()
    {
        NameValueCollection appSettings = ConfigurationManager.AppSettings;
        for (int i = 0; i < appSettings.Count; i++)
        {
            switch (appSettings.GetKey(i))
            {
                case "initialCatalog":
                    txtInitialCatalog.Text = appSettings.GetValues(i)[0];
                    break;
                case "dataSource":
                    txtDatasource.Text = appSettings.GetValues(i)[0];
                    break;
                case "userName":
                    txtUsername.Text = appSettings.GetValues(i)[0];
                    break;
                case "password":
                    txtPassword.Text = appSettings.GetValues(i)[0];
                    break;
                case "portalUrl":
                    txtUrl.Text = appSettings.GetValues(i)[0];
                    break;
            }
        }
    }

    private void SaveConfig()
    {
        System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
        KeyValueConfigurationCollection appSettings = config.AppSettings.Settings;
        appSettings["initialCatalog"].Value = txtInitialCatalog.Text;
        appSettings["dataSource"].Value = txtDatasource.Text;
        appSettings["userName"].Value = txtUsername.Text;
        appSettings["password"].Value = txtPassword.Text;
        appSettings["portalUrl"].Value = txtUrl.Text;
        config.Save(ConfigurationSaveMode.Modified);
        ConfigurationManager.RefreshSection("appSettings");
    }

App.config文件

<configuration>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
  </startup>
  <appSettings>
    <add key="initialCatalog" value="a" />
    <add key="dataSource" value="b" />
    <add key="password" value="c" />
    <add key="userName" value="d" />
    <add key="portalUrl" value="e" />
    <add key="poolingTime" value="60000" />
    <add key="ClientSettingsProvider.ServiceUri" value="" />
  </appSettings>

当表单被激活时我调用ReadConfig()并在按下按钮时保存数据(确定或应用)我关闭应用程序我重新运行它但没有对app.config文件进行任何更改

有任何想法吗？？？

Answer 1

我认为正在发生的事情是您正在使用Visual Studio进行测试,它将App.Config复制到您的Debug/Release目录并将其重命名为YourApplication.vshost.exe.config,每次启动应用程序时都会重置它.尝试在Visual Studio外部运行可执行文件,该文件将使用YourApplication.exe.config文件,看看它是否适合您.如果我在Visual Studio之外运行它,您的代码对我有用并保留对应用程序重新启动的更改.