Getting error when sort based on DistinguishedName

Question

I am connecting to LDAP and i am getting only classobject of type user, and i want only to get the Distinguished Name, when i dont do any sorting, (I comment the line of sorting) the results are coming just fine, the number of users are 13. and i can print them all, but they are not brought in Ascending order, so i did the sort based on the distinguishedName, when i add these lines to the code, it give me an empty collection of searchResults.

I DONT KNOW WHY, why when i do sorting, the data goes, and when i stop the sorting the data is there. whats wrong with the sorting???

DirectoryEntry entry = new DirectoryEntry(_path, username, 
DirectorySearcher mySearcher = new DirectorySearcher(entry);
mySearcher.Filter = ("(objectClass=user)");
SortOption option = new SortOption("distinguishedName", System.DirectoryServices.SortDirection.Ascending);
mySearcher.Sort = option;
DataSet ds = new DataSet();
DataTable dtUsers = new DataTable("Users");
dtUsers.Columns.Add("distinguishedName");
SearchResultCollection ss = mySearcher.FindAll();
SearchResult a = ss[0];

Crilledk · Answer 1 · 2012-05-09T08:00:54.327

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Do the sort in DataView something like this:

DataTable dtUsers = new DataTable("Users");
dtUsers.Columns.Add("distinguishedName");
DataView view = dtUsers.DefaultView;
view.Sort = "distinguishedName";

edited May 09 '12 at 08:00

answered May 02 '12 at 07:28

Crilledk

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LDAP attribute names are not case-sensitive. – user207421 May 02 '12 at 22:19
EJP- thats right. I was just wondering if the property was on the "DirectoryEntry" or on LDAP. – Crilledk May 09 '12 at 07:59
I don't understand the question. All the attributes for every Directory Entry are in LDAP. – user207421 May 09 '12 at 10:33

score 0 · Answer 2 · answered Jun 27 '12 at 20:32

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FWIW, my recommend would typically be to not sort server side. The client can easily sort and keep the sort load off of the DC. There are a few cases where you really need the server to sort, but if you can avoid it, I would. Your admins will thank you.

answered Jun 27 '12 at 20:32

Eric Fleischman

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Getting error when sort based on DistinguishedName

2 Answers2