Active Directory retrieving User Name

Question

User13622593 posted

I am trying to get the user name from active directory.  I used the code given but seem to get an error :Unknown error (0x80005000) on line
 using (SearchResultCollection src = ds.FindAll())

protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            string adPath = "ldap://oscar:389/OU=Atlanta,DC=datadist,DC=com";
            //use current login as search key
            string sFilter = String.Format(
                "(&(objectCategory=person)(sAMAccountName={0}))",
                HttpContext.Current.User.Identity.Name.Split(new char[] { '\\' })[1]
                 );
           
            //this is optional, but more efficient
            string[] attribs = new string[] { "cn", "sn", "givenName" };
            DirectoryEntry de = new DirectoryEntry(
                adPath,
                null,
                null,
                AuthenticationTypes.Secure
                );

            using (de)
            {
                DirectorySearcher ds = new DirectorySearcher(
                    de,
                    sFilter,
                    attribs, //set this to null to retrieve all attribs
                    SearchScope.Subtree
                    );

                SearchResult sr = null;

                using (SearchResultCollection src = ds.FindAll())
                {
                    if (src.Count > 0)
                        sr = src[0];
                }

                if (sr == null)
                {
                    Label1.Text = "User not found...";
                    return;
                }

                StringBuilder sb = new StringBuilder();

                //dump everything we have
                foreach (string key in sr.Properties.PropertyNames)
                {
                    if (sr.Properties.Contains(key))
                    {
                        foreach (object o in sr.Properties[key])
                        {
                            //output every item
                            sb.AppendFormat("{0} : {1}<br>", key, o);
                        }
                    }
                }

                Label1.Text = "Hello " + sb.ToString();
            }
        }

    }

Answer 1

User13622593 posted

I was able to figure this out after looking at several posts.

 In my session start of my global.asax file I have this

string operator_id, str_ldap;

operator_id = String.Format(HttpContext.Current.User.Identity.Name.Split(new char[] { '\\' })[1]);

Session.Add("SessionVariableName", operator_id);

str_ldap = "LDAP://OSCAR";

Session.Add("SessionLDAP", str_ldap);

 

in the master page Page_Load event I have the following code: 

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

string str_userName = (string)Session["SessionVariableName"];

string str_ldap = (string)Session["SessionLDAP"];

DirectoryEntry m_obDirEntry = new DirectoryEntry(str_ldap);

DirectorySearcher search = new DirectorySearcher(m_obDirEntry);

search.Filter = String.Format("(SAMAccountName={0})", str_userName);

search.PropertiesToLoad.Add("cn");

SearchResultCollection results;

results = search.FindAll();

foreach (System.DirectoryServices.SearchResult resEnt in results)

{

System.DirectoryServices.DirectoryEntry de = resEnt.GetDirectoryEntry();

Label1.Text = "Hello " + (string)de.Properties["cn"][0];

}

}

}