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Hi,

i have an application where its searching all domain users from AD, can some one let me know how can i search in multiple domains?
Posted

Great. You can fetch the list of multiple Active Directory (which u belongs) using the below code:

VB
On Error Resume Next
Const E_ADS_PROPERTY_NOT_FOUND  = &h8000500D

Set objUser = GetObject _
    ("LDAP://cn=MyerKen,ou=Management,dc=NA,dc=fabrikam,dc=com")

intPrimaryGroupID = objUser.Get("primaryGroupID")
arrMemberOf = objUser.GetEx("memberOf")

If Err.Number = E_ADS_PROPERTY_NOT_FOUND Then
    WScript.Echo "The memberOf attribute is not set."
Else
    WScript.Echo "Member of: "
    For Each Group in arrMemberOf
        WScript.Echo Group
    Next
End If
   
C#
public static DataTable SearchADUsers(string userName)
{
    //Create new datatable
    using (DataTable dtUsers = new DataTable())
    {
        dtUsers.Locale = CultureInfo.InvariantCulture;
        dtUsers.Columns.Add("key");
        dtUsers.Columns.Add("value");

        foreach (string domainToBeSearched in ConfigurationDetails.DomainTobeChecked.Split(','))
        {
            ValidateADUser(domainToBeSearched, userName, dtUsers);
        }
        return dtUsers;
    }
}



C#
private static void ValidateADUser(string domainToBeSearched, string userName, DataTable dtUsers)
        {
            try
            {
                using (DirectoryEntry domain = new DirectoryEntry("LDAP://" + domainToBeSearched))
                {
                    using (DirectorySearcher searcher = new DirectorySearcher())
                    {
                        //Set root for searching
                        searcher.SearchRoot = domain;
                        //Set filters for searching user
                        searcher.Filter = FormFilter("user", userName + "*");
                        searcher.SearchScope = SearchScope.Subtree;
                        searcher.PageSize = 10;
                        //Get all registered user on basis of passed filter
                        using (SearchResultCollection adResult = searcher.FindAll())
                        {
                            DataRow dtrUsers = null;
                            foreach (SearchResult result in adResult)
                            {
                                if (dtUsers.Select("key='" + result.Properties["samaccountname"][0].ToString() + "'").Length <= 0)
                                {
                                    //Add user to datatable
                                    dtrUsers = dtUsers.NewRow();
                                    dtrUsers[0] = result.Properties["samaccountname"][0].ToString();
                                    dtrUsers[1] = result.Properties["DisplayName"][0];
                                    dtUsers.Rows.Add(dtrUsers);
                                }

                            }
                        }
                    }
                }
            }

            catch (Exception ex)
            {
                LogUtil.WriteLog(LogLevel.ERROR, ex.ToString());
            }
        }



Specify the domain names in config file

<add key="DomainTobeChecked" value="abc.com, lmn.com,xyz.net">
   

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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