How can I configure my C# project without recompiling? [duplicate]

You have 2 approaches you can use depending on your usage preference, the first suggestion is in case you are using your program and you don't set the values too often

1. You can use app.config file and add relevant values and call them via your code as variables.

2. You can write to a xml file or json file a small configuration file abd edit it easily and it is also good for clients using your app to change configuration easily via configuration file.

To do this try use xml serialisation and deserialisation object, I'll add code sample if required.

Edit to use external configuration you need the next classes: 1. Configuration data object

[Serializable]
public class Configuration : ICloneable
{
    public Configuration()
    {
        a = "a";
        b= "b"
    }

    public string a { get; set; }
    public string b { get; set; }

    public object Clone()
    {
        return new Configuration
        {
            a = a,
            b= b
        };
    }
}

2. File write and read class

   public class ConfigurationHandler
   {
    // full path should end with ../file.xml
    public string DefaultPath = "yourPath";
   
   public ConfigurationHandler(string path = "")
   {
       if (!File.Exists(DefaultPath))
       {
           Directory.CreateDirectory(Path.GetDirectoryName(DefaultPath));
           FileStream file = File.Create(DefaultPath);
           file.Close();
   
           Configuration = new Configuration();
           SaveConfigurations(DefaultPath);
       }
   }
   
   public void SaveConfigurations(string configPath = "")
   {
       if (string.IsNullOrEmpty(configPath))
           configPath = DefaultPath;
       var serializer = new XmlSerializer(typeof(Configuration));
       using (TextWriter writer = new StreamWriter(configPath))
       {
           serializer.Serialize(writer, Configuration);
       }
   }
   
   
   public Configuration LoadConfigurations(string configPath = "")
   {
       if (string.IsNullOrEmpty(configPath))
           configPath = DefaultPath;
       using (Stream reader = new FileStream(configPath, FileMode.Open))
       {
           // Call the Deserialize method to restore the object's state.
           XmlSerializer serializer = new XmlSerializer(typeof(Configuration));
           Configuration = (Configuration)serializer.Deserialize(reader);
       }
       return Configuration;
   }
   

   }

3. to get the configuration instance you can use it from your program:

   static void Main(string[] args) {

   var config = new ConfigurationHandler().LoadConfigurations();
   //....
   

   }