Get EXE config data dynamically

ExeConfigDynamic.cs

private static string exePath = System.Reflection.Assembly.GetExecutingAssembly().Location.ToString();

if (!string.IsNullOrEmpty(servicePath))
{
   Configuration config = ConfigurationManager.OpenExeConfiguration(exePath);
   //here fetching the data from AppSettings with key name "UserName"

   string userName = config.AppSettings.Settings["UserName"].Value.ToString();
}