Search the directories : Search : Directory Services C# Examples

    
using  System;
using  System.DirectoryServices;

public  class  MainClass  {
    static  void  Main(string[]  args)  {
        try
        {
            DirectoryEntry  oRoot  =  new  DirectoryEntry("LDAP://RootDSE");
            string  searchOU  =  (string)oRoot.Properties["defaultnamingcontext"].Value;
            DirectoryEntry  de  =  new  DirectoryEntry("LDAP://CN=Users,"  +  searchOU);  
            Console.WriteLine(oRoot.Name);
            oRoot.Close();
                
            DirectorySearcher  search  =  new  DirectorySearcher(de);
            search.Filter  =  "(CN=Administrator)";
            search.PropertiesToLoad.Add("distinguishedName");
            SearchResultCollection  results  =  search.FindAll();
            
            string  strRet="Not  Found";
            foreach(SearchResult  result  in  results)
            {
                DirectoryEntry  data  =  result.GetDirectoryEntry();
                strRet  =  (string)data.Properties["distinguishedName"].Value;
                Console.WriteLine(strRet);
                data.Close();
            }
            de.Close();
            results.Dispose();
        }catch(Exception  e){
            Console.WriteLine(  e.Message);
        }
    }
}