private int GetUrlError(string curl) { int num = 200; if(this.method==1) { HttpWebRequest request=(HttpWebRequest) WebRequest.Create(new Uri(curl)); ServicePointManager.Expect100Continue=false; try { ((HttpWebResponse)request.GetResponse()).Close(); } catch(WebException exception) { if(exception.Status != WebExceptionStatus.ProtocolError) { return num; } if(exception.Message.IndexOf( "500 ")>0) { return 500; } if(exception.Message.IndexOf( "401 ")>0) { return 401; } if(exception.Message.IndexOf("404")>0) { num=404; } } return num; } }