Question

Possible Duplicate:
Can I get more than 1000 records from a DirectorySearcher in Asp.Net?
c# Active Directory Services findAll() returns only 1000 entries

I have a problem when trying read all user from AD. Active directory contain over 3000 user, but I can read only 1000. This is my code

public DirectoryEntry directoryEntry = new DirectoryEntry(ldap, userName, password);
public DirectorySearcher directorySearcher = new DirectorySearcher(directoryEntry);

var allUsers = directorySearcher.FindAll();

Answer 1

It is a user settings problem. According to this page you have to set the page size to 1000 to get more than 1000 results:

OmegaMan: Ya its bizarre, one has to set a page size as 1000 to get more records than 1000. This is a trick/issue one doesn’t forget due to the way one has to resolve the problem.