如何将webbrowser控件的Cookie倒入CookieContainer供WebRequest使用

如何将webbrowser控件的Cookie倒入CookieContainer供WebRequest使用？
在webbrowser控件读出来的Cookies是字符串。
CookieContainer可以SetCookie来写入，但不知道要怎么写才能让WebRequest使用。。。 --------------------编程问答-------------------- 怎么没人回答啊？ --------------------编程问答-------------------- 先建一个 "CookieContainer "   把WebBrowser中的Cookie保存在里面 
                
      //在WebBrowser中登录　cookie保存在　WebBrowser.Document.Cookie中 
                        
                        CookieContainer   myCookieContainer   =   new   CookieContainer(); 


                        //String   的Cookie　要转成　Cookie型的　并放入CookieContainer中 
                        string   cookieStr   =   webBrowser1.Document.Cookie; 
                        string[]   cookstr   =   cookieStr.Split( '; '); 
                        foreach   (string   str   in   cookstr) 
                        { 
                                string[]   cookieNameValue   =   str.Split( '= '); 
                                Cookie   ck   =   new   Cookie(cookieNameValue[0].Trim().ToString(),   cookieNameValue[1].Trim().ToString()); 
                                ck.Domain   =   "www.abc.com ";//必须写对 
                                myCookieContainer.Add(ck); 
                        } 


                        HttpWebRequest   hreq   =   (HttpWebRequest)HttpWebRequest.Create( "http://www.abc.com/search.asp "); 
                        hreq.Method   =   "POST "; 
                        hreq.ContentType   =   "application/x-www-form-urlencoded "; 
                      
                        //自己创建的CookieContainer 
                        hreq.CookieContainer   =   myCookieContainer; 
                      
                        string   postdata   =   "id=2005&action=search&name= "; 
                        byte[]   byte1   =   Encoding.ASCII.GetBytes(postdata); 
                        hreq.ContentLength   =   byte1.Length; 
                        
                        Stream   poststream   =   hreq.GetRequestStream(); 
                        poststream.Write(byte1,   0,   byte1.Length); 
                        poststream.Close(); 
                
                        HttpWebResponse   hres   =   (HttpWebResponse)hreq.GetResponse(); --------------------编程问答-------------------- vb.net有没有实例啊！

补充：.NET技术 ,  VB.NET