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Retrieving Active Directory time fields with .net c#

I an working on an Intranet where I need to produce reports from Active Directory. I have no problem accessing and retrieving the AD data I need but have a problem converting lastLogon to a real date/time. Apparently this is stored as a high part and a low part so needs HighPart and LowPart methods to break the number into two 32-bit components. I am going round in circles trying to find out how to do this in c#. Does anyone there have code that works ?

Bob Learned

I know that you need it for C#, but I found this for VBScript:

Recipe 6.27: Determining a User's Last Logon Time
http://www.ondotnet.com/pub/a/dotnet/excerpt/ADcookbook_chap1/?page=2

' This code prints the last logon timestamp for a user.
' ------ SCRIPT CONFIGURATION ------
strUserDN = "<UserDN>" ' e.g. cn=user,ou=department,dc=server,dc=com
' ------ END CONFIGURATION ---------

set objUser = GetObject("LDAP://" & strUserDN)
set objLogon = objUser.Get("lastLogonTimestamp")
intLogonTime = objLogon.HighPart * (2^32) + objLogon.LowPart
intLogonTime = intLogonTime / (60 * 10000000)
intLogonTime = intLogonTime / 1440
WScript.Echo "Approx last logon timestamp: " & intLogonTime + #1/1/1601#

jegregory

ASKER

Thanks, I'd found that one but I can't tranlate it into c# ! The problem is I can't find a c# class that will do a high part, low part split.

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Bob Learned

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jegregory

ASKER

When I compile this I get 'The type or namespace ActiveDS could not be found'. I think this is because ActiveDS is not part of the .net framework, but part of ADSI. So how do I link in the ADSI bit - is there a dll I need ?

I am building this as part of an Intranet, so using web forms not Windows forms and accessing Active directory remotely from within the browser.

(I am using Dreamweaver for editing and the command line compiler - not Visual Studio)

Bob Learned

I have this in my .csproj file in the References section:

<Reference
Name = "ActiveDs"
Guid = "{97D25DB0-0363-11CF-ABC4-02608C9E7553}"
VersionMajor = "1"
VersionMinor = "0"
Lcid = "0"
WrapperTool = "tlbimp"

Bob Learned

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