Question : System.InvalidOperationExc<wbr />eption: The value for the property PageSize cannot be set

I have a routine that searches ldap..its always worked fine...until today I canceled out of teh routine during a dev debug test... it was working fine and I closed the app in the middle of the routine.. tried to run it again it again and now I keep getting this error.

System.InvalidOperationException: The value for the property PageSize cannot be set.
   at System.DirectoryServices.DirectorySearcher.DoSetSearchPrefs(IDirectorySearch adsSearch, AdsSearchPreferenceInfo[] prefs)
   at System.DirectoryServices.DirectorySearcher.SetSearchPreferences(IDirectorySearch adsSearch, Boolean findMoreThanOne)
   at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
   at System.DirectoryServices.DirectorySearcher.FindAll()


This is my code fr the search


                DirectoryEntry entry = omnifrmwk.InternalClasses.LDAPMethods.getLDAPDirectoryEntry();


                DirectorySearcher search = new DirectorySearcher(entry);
                search.PropertiesToLoad.Add("uid");
                search.PropertiesToLoad.Add("company");
                           //search.PropertiesToLoad.Add("costcenterdescription");
                search.PropertiesToLoad.Add("mail");
   
                search.Filter = "(&(objectCategory=person)(objectClass=user)(!(userAccountControl:1.2.840.113556.1.4.803:=2)))";
                search.PageSize = 1000;
                foreach (SearchResult result in search.FindAll())
                {
                    DirectoryEntry de = result.GetDirectoryEntry();

                    string uid = de.Properties["uid"].Value.ToString();

Answer : System.InvalidOperationExc<wbr />eption: The value for the property PageSize cannot be set

Wow... there is nothing wrong with what you've posted.

I can only imagine that perhaps the LDAP session has remained open...  I'd check the Task Manager for any stray processes or COM connections to your LDAP server