Я попробовал это, и это сработало
public ArrayList GetAllGroupNames(string ipAddress, string ouPath)
{
DirectorySearcher deSearch = new DirectorySearcher();
deSearch.SearchRoot = GetRootDirectoryEntry(ipAddress, ouPath);
deSearch.Filter = "(&(objectClass=group))";
SearchResultCollection results = deSearch.FindAll();
if (results.Count > 0)
{
ArrayList groupNames = new ArrayList();
foreach (SearchResult group in results)
{
var entry = new DirectoryEntry(group.Path, UserName, Password);
string shortName = entry.Name.Substring(3, entry.Name.Length - 3);
groupNames.Add(shortName);
}
return groupNames;
}
else
{
return new ArrayList();
}
}
private DirectoryEntry GetRootDirectoryEntry(string ipAddress, string domainPath, string username, string password)
{
var ldapPath = "LDAP://" + ipAddress + "/" + domainPath;
return new DirectoryEntry(ldapPath, username, password, AuthenticationTypes.Secure);
}