SparkClient/Model/Helper/ConfigurationHelper.cs

using System.Configuration;

namespace SparkClient.Model.Helper;

public class ConfigurationHelper
{
    static System.Configuration.Configuration config = System.Configuration.ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
    
    public static string ReadConfigValue(string key)
    {
        
        string name = config.AppSettings.Settings[key].Value;

        return name;
    }

    public static void SetConfigValue(string key, string value)
    {
        config.AppSettings.Settings[key].Value = value;
        config.Save(ConfigurationSaveMode.Modified);
        System.Configuration.ConfigurationManager.RefreshSection("appSettings");
    }
}