using appsettings:ldapdomain get list of ldap attributes for employeeid in csharp

main.cs
using System.DirectoryServices;
using Microsoft.Extensions.Configuration;

namespace MyApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            // Load appsettings.json
            IConfigurationRoot config = new ConfigurationBuilder()
                .AddJsonFile("appsettings.json", true, true)
                .Build();

            string ldapDomain = config["appsettings:ldapdomain"];
            string employeeId = "12345"; // Replace with the actual EmployeeID

            // Set up the LDAP connection
            DirectoryEntry entry = new DirectoryEntry("LDAP://" + ldapDomain);

            // Search for the employee with the specified EmployeeID
            DirectorySearcher searcher = new DirectorySearcher(entry);
            searcher.Filter = "(&(objectCategory=person)(objectClass=user)(employeeID=" + employeeId + "))";

            SearchResult result = searcher.FindOne();

            if (result != null)
            {
                // Get the list of LDAP attributes for the employee
                PropertyCollection properties = result.Properties;

                foreach (string propertyName in properties.PropertyNames)
                {
                    Console.WriteLine("{0} : {1}", propertyName, string.Join(",", properties[propertyName].Cast<string>()));
                }
            }
            else
            {
                Console.WriteLine("Employee not found.");
            }

            // Release resources
            searcher.Dispose();
            entry.Dispose();
        }
    }
}
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