c# - 加密连接字符串 : "This operation does not apply at runtime"

Question

我有一个控制台应用程序，它有 app.config。当我运行这段代码时:

 class Program
    {
        static void Main()
        {

            ConnectionStringsSection connSection = ConfigurationManager.GetSection("connectionStrings") as 
                                                    ConnectionStringsSection;
            if (connSection != null)
            {
                if (!connSection.SectionInformation.IsProtected)
                    connSection.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider");

                else
                    connSection.SectionInformation.UnprotectSection();
            }

            Console.Read();
        }
    }

我收到错误消息:“此操作不适用于运行时”。我也尝试授予我的 app.config 权限，但没有成功。

有什么问题？

Answer 1

您可以尝试以下方法:

 static void Main()
 {


     // Get the current configuration file.
     System.Configuration.Configuration config =
             ConfigurationManager.OpenExeConfiguration(
             ConfigurationUserLevel.None);

     ConnectionStringsSection connSection = config.GetSection("connectionStrings") as
                                             ConnectionStringsSection;

     if (connSection != null)
     {
         if (!connSection.SectionInformation.IsProtected)
             connSection.SectionInformation.ProtectSection(null);

         else
             connSection.SectionInformation.UnprotectSection();
     }

     connSection.SectionInformation.ForceSave = true;

     config.Save(ConfigurationSaveMode.Full);

     Console.ReadKey();
 }