C#

SearchResultCollection sResults = null;

                try
                {
                    //modify this line to include your domain name
                    string path = "LDAP://microsistemas.com";
                    //init a directory entry
                    DirectoryEntry dEntry = new DirectoryEntry(path);

                    //init a directory searcher
                    DirectorySearcher dSearcher = new DirectorySearcher(dEntry);

                    //This line applies a filter to the search specifying a username to search for
                    //modify this line to specify a user name. if you want to search for all
                    //users who start with k - set SearchString to "k"
                    dSearcher.Filter = "(&(objectClass=user))";

                    //perform search on active directory
                    sResults = dSearcher.FindAll();

                    //loop through results of search
                    foreach (SearchResult searchResult in sResults)
                    {
                        if (searchResult.Properties["CN"][0].ToString() == "Administrator")
                        {
                            ////loop through the ad properties
                            //foreach (string propertyKey in
                            //searchResult.Properties["st"])
                            //{

                            //pull the collection of objects with this key name
                            ResultPropertyValueCollection valueCollection =
                            searchResult.Properties["manager"];

                            foreach (Object propertyValue in valueCollection)
                            {

                                //loop through the values that have a specific name
                                //an example of a property that would have multiple
                                //collections for the same name would be memberof
                                //Console.WriteLine("Property Name: " + valueCollection..ToString());
                                Console.WriteLine("Property Value: " + (string)propertyValue.ToString());

                                //["sAMAccountName"][0].ToString();
                            }
                            //}
                            Console.WriteLine(" ");
                        }
                    }
                }
                catch (InvalidOperationException iOe)
                {
                    //
                }
                catch (NotSupportedException nSe)
                {
                    //
                }
                finally
                {

                    // dispose of objects used
                    if (sResults != null)
                        sResults.Dispose();

                }
                Console.ReadLine();
            }

this.lblPos.Text = "1234";
if (this.lblPos.Text == "1234")
{
      this.lblPos.Text = "100";                   
      this.lblPos.Update();
      this.lblPos.Refresh();
}