如何在C#的LDAP中进行身份验证？

using System.DirectoryServices;

string ldapPath = "LDAP://ldap.example.com"; // LDAP服务器地址
string username = "username"; // 用户名
string password = "password"; // 密码

DirectoryEntry entry = new DirectoryEntry(ldapPath, username, password);

DirectorySearcher searcher = new DirectorySearcher(entry);
searcher.Filter = $"(&(objectClass=user)(sAMAccountName={username}))";

SearchResult result = searcher.FindOne();

if (result != null)
{
    // 身份验证成功
}
else
{
    // 身份验证失败
}

if (result != null)
{
    DirectoryEntry userEntry = result.GetDirectoryEntry();
    string displayName = userEntry.Properties["displayName"].Value.ToString();
    // 其他属性信息的获取
}