Create LDAP connection with Active Directory

Custom Code while creating a LDAP connection with Active Directory and get the Information of all the users.

DirectoryEntry de = new DirectoryEntry();

//DC = DomainController here AD Domain is sharepoint.2010.com,

de.Path = "LDAP://10.1.1.1/DC=sharepoint,DC=2010,DC=com";

de.AuthenticationType = AuthenticationTypes.Secure;

searcher = new DirectorySearcher(de);

//searcher.Filter  filters all the information according to the filter query. Below filter gets all users

searcher.Filter = "(&(objectCategory=Person)(objectClass=User))";

searcher.SearchScope = SearchScope.Subtree;

searcher.PageSize = 1000;