LDAP query Filter error

Question

User-294535585 posted

I am hoping that someone can help me.  I am doing a search to return all accounts in AD that have never been logged into and were created before a specified date but I keep getting the error "search filter is invalid."  Here is my code.

 

string ADPath = "LDAP://DC=ad,DC=Domain,DC=com";

DirectoryEntry AD = new DirectoryEntry(ADPath, "Username", "Pwd");

DirectorySearcher ADFind = new DirectorySearcher(AD);

ADFind.Filter = ADFind.Filter = "(&(objectCategory=user)(!lastLogonTimestamp=*) (whenCreated>=20070301000000.0Z)))";

SearchResultCollection results = ADFind.FindAll();

 

Answer 1

User-294535585 posted

I don't know why my copy paste did this but it isn't

 

ADFind.Filter = ADFind.Filter =

"(&(objectCategory=user)(!lastLogonTimestamp=*) (whenCreated>=20070301000000.0Z)))";

it really is

 

ADFind.Filter = "(&(objectCategory=user)(!lastLogonTimestamp=*) (whenCreated>=20070301000000.0Z)))";