Hello Huzz,
I haven't seen this particular problem before. I need to know exactly what
the user has to do to clear it.
You mentioned that you have to restart the client machine and you've
mentioned logging off and logging on. Does restarting the browser (only)
have any effect?
Do your users tend to connect to your site and stay there for a long period
of time with intermittent activity?
Does this happen when the user first connects to the site, or does it happen
when the user has been using the site for a while?
Does it make a difference in the behavior if the browser is left open to a
spot for 20 or more minutes? (e.g. does this only happen, or never happen,
or more frequently happen, when the session expires at some point during the
time when the user is on your site)?
Can you tell me anything about the people who experience this problem? Are
they using laptops or wireless networks? Is there something unique about
their accounts?
--
--- Nick Malik [Microsoft]
MCSD, CFPS, Certified Scrummaster
http://blogs.msdn.com/nickmalik
Disclaimer: Opinions expressed in this forum are my own, and not
representative of my employer.
I do not answer questions on behalf of my employer. I'm just a
programmer helping programmers.
--
"huzz" <huzz@discussions.microsoft.com> wrote in message
news:DCC87C82-4877-4B2A-885D-951FB4CA3099@microsoft.com...[color=blue]
> I've to more methods using the DirectorySearcher, here is the class
>
> using System;
> using System.DirectoryServices;
> using System.Configuration;
> using System.Collections;
> using System.Web.UI;
> using System.Drawing;
> using System.Data;
> using System.IO;
> using System.Web;
> using intranet.Classes;
> namespace intranet
> {
> /// <summary>
> /// Summary description for ldap.
> /// </summary>
> public class ActiveDirectory
> {
> public ActiveDirectory()
> {
> //
> // TODO: Add constructor logic here
> //
>
> }
> /// <summary>
> /// This methods checks if a user exist in the Active Directory.
> /// </summary>
> /// <param name="UserName">Username</param>
> /// <returns>bool</returns>
> public bool UserExist(string UserName)
> {
>
> DirectoryEntry de = new
> DirectoryEntry(ConfigurationSettings.AppSettings["ADPath"]);
> de.AuthenticationType = AuthenticationTypes.Secure;
> try
> {
> DirectorySearcher ds = new DirectorySearcher(de);
> //ds.Filter = ("ObjectCategory=user");
> ds.Filter = ("samaccountname="+ UserName + "");
>
> SearchResult result = ds.FindOne();
> if(result == null)
> {
> return false;
> }
> }
> catch(Exception ex)
> {
> throw new Exception("Error autenticating user." + ex.Message);
> }
> return true;
> }
>
>
> /// <summary>
> /// Method to validate if a user exists in the AD.
> /// </summary>
> /// <param name="UserName"></param>
> /// <returns></returns>
> /*
> public bool UserExists(string UserName)
> {
> DirectoryEntry de = ADHelper.GetDirectoryEntry();
> DirectorySearcher deSearch = new DirectorySearcher();
> deSearch.SearchRoot =de;
> deSearch.Filter = "(&(objectClass=user) (cn=" + UserName +"))";
> SearchResultCollection results = deSearch.FindAll();
> if(results.Count == 0)
> {
> return false;
> }
> else
> {
> return true;
> }
> }
> */
>
> /// <summary>
> /// Gets User details from AD like user firstname, lastname, email
> etc.
> /// </summary>
> /// <param name="UserName">username</param>
> /// <returns>array</returns>
> public string[] getUserDetails(string UserName)
> {
>
> DirectoryEntry de = new
> DirectoryEntry(ConfigurationSettings.AppSettings["ADPath"]);
> de.AuthenticationType = AuthenticationTypes.Secure;
> string[] UserInfo = new string[3];
>
> DirectorySearcher ds = new DirectorySearcher(de);
> // ds.Filter = ("OU="+ GroupName + "");
> ds.Filter = ("ObjectCategory=user");
> ds.Filter = ("samaccountname="+ UserName + "");
> SearchResult result = ds.FindOne();
>
> try
> {
> if(result ==null)
> {
>
> UserInfo[0] = "Unknown";
> UserInfo[1] = "Unknown";
> return UserInfo;
> }
> }
> catch(Exception ex)
> {
> throw new Exception("Error obtaining your details." + ex.Message);
>
> }
> UserInfo[0] =
> result.GetDirectoryEntry().Properties["displayname"].Value.ToString();
> UserInfo[1] =
> result.GetDirectoryEntry().Properties["mail"].Value.ToString();
> return UserInfo;
>
> }
> /// <summary>
> /// This method checks if the logged on user is a member of a given
> group in Active Directory.
> /// Used to restrict access to certain area of the intranet.
> /// </summary>
> /// <param name="GroupName">Group name in AD</param>
> /// <returns>bool</returns>
> public bool IsMemberOf(string GroupName)
> {
>
> Security NTSecurity = new Security();
> string UserName = NTSecurity.getLogonUser();
>
> DirectoryEntry de = new
> DirectoryEntry(ConfigurationSettings.AppSettings["ADPath"]);
> //DirectoryEntry de = new
> DirectoryEntry("LDAP://OU="+GroupName+",DC=amersham,DC=ac,DC=uk",Configur ationSettings.AppSettings["ADUser"],ConfigurationSettings.AppSettings["ADPass"]);
> de.AuthenticationType = AuthenticationTypes.Secure;
> try
> {
> DirectorySearcher ds = new
> DirectorySearcher(de,"sAMAccountName="+UserName);
> //ds.Filter = ("OU="+ GroupName + "");
> //ds.Filter = ("samaccountname="+ UserName + "");
> SearchResult result = ds.FindOne();
> if(result !=null)
> {
> return true;
> }
> }
> catch(Exception ex)
> {
> throw new Exception("Access denied." + ex.Message);
> }
>
> return false;
> }
>
> }
>
> }
>
>
>
>
>
>
>
> "Nick Malik [Microsoft]" wrote:
>[color=green]
>> Is this the only one using DirectorySearcher?
>>
>> --
>> --- Nick Malik [Microsoft]
>> MCSD, CFPS, Certified Scrummaster
>>
http://blogs.msdn.com/nickmalik
>>
>> Disclaimer: Opinions expressed in this forum are my own, and not
>> representative of my employer.
>> I do not answer questions on behalf of my employer. I'm just a
>> programmer helping programmers.
>> --
>> "huzz" <huzz@discussions.microsoft.com> wrote in message
>> news:FB62773D-55EC-4B22-A76C-A9376A28223F@microsoft.com...[color=darkred]
>> > Am using "Integrated Windows Authentication", it works fine but
>> > sometime
>> > the
>> > user requires to log off and log back in to avoid the error message.
>> >
>> > I've few other method that calls the AD, only this one causing problem.
>> >
>> > "Nick Malik [Microsoft]" wrote:
>> >
>> >> The active directory is a protected resource. Therefore, the only
>> >> people
>> >> who have the right to see it are people who are in it. This means you
>> >> won't
>> >> get an empty return set from your query... you'll get an error on Bind
>> >> (which you did) because an account that doesn't have access has no
>> >> right
>> >> to
>> >> bind.
>> >>
>> >> What authentication mechanism is your app using? Do you allow
>> >> anonymous
>> >> users?
>> >>
>> >> --
>> >> --- Nick Malik [Microsoft]
>> >> MCSD, CFPS, Certified Scrummaster
>> >>
http://blogs.msdn.com/nickmalik
>> >>
>> >> Disclaimer: Opinions expressed in this forum are my own, and not
>> >> representative of my employer.
>> >> I do not answer questions on behalf of my employer. I'm just a
>> >> programmer helping programmers.
>> >> --
>> >> "huzz" <huzz@discussions.microsoft.com> wrote in message
>> >> news:E309FB85-0BB3-46C7-9879-0BC86D1B2EAB@microsoft.com...
>> >> > Nick thanks for your response.. the error message is shown below. Am
>> >> > trying
>> >> > to get Email Address, Displayname from the active directory passing
>> >> > username
>> >> > as the parameter.. do you think my method is wrong?? please help..
>> >> > many
>> >> > thanks again
>> >> >
>> >> > [COMException (0x80072020): An operations error occurred]
>> >> > System.DirectoryServices.DirectoryEntry.Bind(Boole an throwIfFail)
>> >> > +705
>> >> > System.DirectoryServices.DirectoryEntry.Bind() +10
>> >> > System.DirectoryServices.DirectoryEntry.get_AdsObj ect() +10
>> >> > System.DirectoryServices.DirectorySearcher.FindAll (Boolean
>> >> > findMoreThanOne) +199
>> >> > System.DirectoryServices.DirectorySearcher.FindOne () +31
>> >> > frs.ActiveDirectory.getUserDetails(String UserName) in
>> >> > c:\inetpub\wwwroot\buildingservices\frs\classes\ac tivedirectory.cs:57
>> >> > frs.request.Page_Load(Object sender, EventArgs e) in
>> >> > c:\inetpub\wwwroot\buildingservices\frs\request.as px.cs:50
>> >> > System.Web.UI.Control.OnLoad(EventArgs e) +67
>> >> > System.Web.UI.Control.LoadRecursive() +35
>> >> > System.Web.UI.Page.ProcessRequestMain() +750
>> >> >
>> >> >
>> >> >
>> >> > "Nick Malik [Microsoft]" wrote:
>> >> >
>> >> >> COM exception is the type of error, not the error itself. Please
>> >> >> post
>> >> >> the
>> >> >> error itself...
>> >> >> And put a Try-Catch around your code!
>> >> >>
>> >> >> It's probably an error with the parameters.
>> >> >>
>> >> >> --
>> >> >> --- Nick Malik [Microsoft]
>> >> >> MCSD, CFPS, Certified Scrummaster
>> >> >>
http://blogs.msdn.com/nickmalik
>> >> >>
>> >> >> Disclaimer: Opinions expressed in this forum are my own, and not
>> >> >> representative of my employer.
>> >> >> I do not answer questions on behalf of my employer. I'm just a
>> >> >> programmer helping programmers.
>> >> >> --
>> >> >> "huzz" <huzz@discussions.microsoft.com> wrote in message
>> >> >> news:C9A4D021-CD8C-4D33-9C4A-AC3E836C1D70@microsoft.com...
>> >> >> >I have web application that quaries the Active Directory to get
>> >> >> >user
>> >> >> > details.. everything works fine but someday I'll get
>> >> >> > System.Runtime.InteropServices.COMExection and if I restart the
>> >> >> > client
>> >> >> > machine then it works again.
>> >> >> >
>> >> >> > here is one of the method where am calling the AD
>> >> >> >
>> >> >> > public bool UserExist(string UserName)
>> >> >> > {
>> >> >> >
>> >> >> > DirectoryEntry de = new
>> >> >> > DirectoryEntry(ConfigurationSettings.AppSettings["ADPath"]);
>> >> >> > DirectorySearcher ds = new DirectorySearcher(de);
>> >> >> > ds.Filter = ("ObjectCategory=user");
>> >> >> > ds.Filter = ("samaccountname="+ UserName + "");
>> >> >> > SearchResult result = ds.FindOne();
>> >> >> > bool UserExist;
>> >> >> > if(result != null)
>> >> >> > {
>> >> >> > UserExist = true;
>> >> >> > }
>> >> >> > else
>> >> >> > {
>> >> >> > UserExist = false;
>> >> >> > }
>> >> >> > return UserExist;
>> >> >> > }
>> >> >> >
>> >> >> > Please help
>> >> >>
>> >> >>
>> >> >>
>> >>
>> >>
>> >>[/color]
>>
>>
>>[/color][/color]
