C# HtmlDocument.GetElementbyId方法代码示例

        private void LoadHtmlTemplate()
        {
            this.document = new HtmlDocument();
            this.document.Load( Assembly.GetExecutingAssembly().GetManifestResourceStream(HtmlTemplate) );

            this.table = new HtmlNodeCollection(document.GetElementbyId(LogEventTableId));
        }

        public void GetBrand(WebParserModel md)
        {
            WebRequest wr = WebRequest.Create("http://www.komus.ru/product/"+md.Referense.Substring(5)+"/#features");
            wr.Proxy=null;
            var resp = wr.GetResponse();
            var result = "";
            using(StreamReader sr = new StreamReader(resp.GetResponseStream(),Encoding.UTF8)){
                result = sr.ReadToEnd();
            }

            HtmlDocument html = new HtmlDocument();
            html.LoadHtml(result);

            var outer = html.GetElementbyId("breadcrumb_js");
            var wrapper = outer.NextSibling.NextSibling.NextSibling.NextSibling;
            var bigImg = wrapper.ChildNodes.FindFirst("img").Attributes["src"].Value;
            var cat="";
            md.Title=wrapper.ChildNodes[3].ChildNodes.FindFirst("h1").InnerText.Trim(); // title
            md.ImageUrl = bigImg; // img url
            outer = html.GetElementbyId("tabs--content-item-features");
            var tableLinesCount = outer.ChildNodes.FindFirst("table").Elements("tr").Last().ChildNodes[3].InnerText.Trim();
            if (tableLinesCount == " ")
            {
                cat = outer.ChildNodes.FindFirst("table").Elements("tr").Last().PreviousSibling.PreviousSibling.ChildNodes[3].InnerHtml;
                md.Brand = Regex.Match(cat, @"\w+(?=(</span>))").Value;
            }
            else {
                cat = tableLinesCount;
                md.Brand = cat;
            }

            //ViewBag.outer = bigImg;
        }

        /// <returns>Dictionary mapping player id to transfer value in 100,000's</returns>
        public Dictionary<int,int> GetMyTeamTransferValues()
        {
            var htmlDoc = new HtmlDocument();
            htmlDoc.LoadHtml(_transfersPageHtmlString);
            
            //var body = htmlDoc.GetElementbyId("ismTeamDisplayGraphical");
            //var ismPitch = body.SelectSingleNode("//div[@class='ismPitch']");
            //var players = ismPitch.SelectNodes("//div[@class='ismPlayerContainer']");

            var result = new Dictionary<int, int>();

            for (int i = 0; i < 15; i++)
            {
                string playerIdStr = htmlDoc.GetElementbyId(string.Format("id_pick_formset-{0}-element", i)).GetAttributeValue("value", "");
                int playerId = int.Parse(playerIdStr);

                string salePriceStr = htmlDoc.GetElementbyId(string.Format("id_pick_formset-{0}-selling_price", i)).GetAttributeValue("value", "");
                int salePrice = int.Parse(salePriceStr);

                result.Add(playerId, salePrice);
            }

            /*foreach (var player in players)
            {
                string playerIdStr = player.SelectSingleNode("//a[@class='ismViewProfile']").GetAttributeValue("href",""); // string in form "#<id>"
                int playerId = int.Parse(playerIdStr.TrimStart('#'));

                string salePriceStr = player.SelectSingleNode("//span[@class='ismPitchStat']").InnerText; // string in form "£<sell price>"
                decimal salePrice = decimal.Parse(salePriceStr.TrimStart('£'));

                result.Add(playerId, salePrice);
            }*/

            return result;
        }

        public void DefineTheHtml_File(string filePath)
        {
            using (StreamReader reader = new StreamReader(filePath, Encoding.Default)) //Unicode-, ASCII-, UTF8-,UTF7-,UTF32-,BigEndianUnicode-
            {
                var html = new HtmlDocument();
                var stringHtml = reader.ReadToEnd();
                html.LoadHtml(stringHtml);

                var doc = html.GetElementbyId("initial_list"); //results <- поиск

                if (doc == null) // if true ? html from search list : html from my audio list
                {
                    doc = html.GetElementbyId("results");
                    var arr = doc.ChildNodes.Where(x => x.Name == "div").ToArray();
                    CreateCollectionFromSearch(arr);
                }

                if (doc == null)
                    throw new Exception("Не поддерживаемый html");

                var arrayHtmlNode = doc.ChildNodes.Where(x => x.InnerHtml != "").ToArray();

                CreateCollectionSongsMyAudio(arrayHtmlNode);
            }
        }

        public override async Task ExecuteAsync(Update update, Dictionary<string, string> parsedMessage)
        {
            var response = await GetHtml();
            string responseString;
            using (var tr = new StreamReader(response))
            {
                responseString = tr.ReadToEnd();
            }

            var startIndex = responseString.IndexOf("+=") + 2;
            var endIndex = responseString.IndexOf(";\ndocument");
            var tempStr = responseString.Substring(startIndex, endIndex - startIndex);
            var partsList = tempStr.Split('+').Select(x => x.Trim()).ToList();
            tempStr = "";
            // remove ' symbols
            partsList.ForEach(x => tempStr += x.Substring(1, x.Length - 2));

            HtmlDocument document = new HtmlDocument();
            document.LoadHtml(tempStr);
            var quote = document.GetElementbyId(QuoteTagId);
            var rating = document.GetElementbyId(RatingTagId);
            
            var result = rating.InnerText + Environment.NewLine + quote.InnerHtml.Replace(QuoteLineBreak, Environment.NewLine);
            
            await Bot.SendTextMessageAsync(update.Message.Chat.Id, HttpUtility.HtmlDecode(result), false, false, update.Message.MessageId);
        }

        public IEnumerable<IStockBonus> GetStockBonus(string stockCode)
        {
            string url = string.Format(@"http://vip.stock.finance.sina.com.cn/corp/go.php/vISSUE_ShareBonus/stockid/{0}.phtml", stockCode);

            string pageHtml = PageReader.GetPageSource(url);
            if (string.IsNullOrEmpty(pageHtml))
                return null;

            var htmlDocument = new HtmlDocument();
            htmlDocument.LoadHtml(pageHtml);

            HtmlNode titleNode = htmlDocument.DocumentNode.SelectSingleNode("//title");
            //string name = titleNode.InnerText.Substring(0, titleNode.InnerText.IndexOf("("));

            HtmlNode nodeSharebonus_1 = htmlDocument.GetElementbyId("sharebonus_1");
            HtmlNode nodeSharebonus_2 = htmlDocument.GetElementbyId("sharebonus_2");

            List<IStockBonus> lstStockBonus = new List<IStockBonus>();

            var lstNodes1 = nodeSharebonus_1.SelectNodes("tbody/tr");
            foreach (var item in lstNodes1)
            {
                var nodes = item.SelectNodes("td");
                string urlDetails = string.Format(@"http://vip.stock.finance.sina.com.cn/{0}", item.SelectSingleNode("td/a").Attributes["href"].Value);
                var stockBonus = new StockBonus()
                {
                    //Code = stockCode,
                    //ShortName = name,
                    DateOfDeclaration = DateTime.Parse(nodes[0].InnerText),// 公告日期
                    Type = BounsType.ProfitSharing,// 分红类型
                    ExdividendDate = DateTime.Parse(nodes[5].InnerText),// 除权除息日
                    RegisterDate = DateTime.Parse(nodes[6].InnerText), // 股权登记日
                };

                StockBonusDetailsParser(urlDetails, ref stockBonus);
                lstStockBonus.Add(stockBonus);
            }

            var lstNodes2 = nodeSharebonus_2.SelectNodes("tbody/tr");
            foreach (var item in lstNodes2)
            {
                var nodes = item.SelectNodes("td");
                string urlDetails = string.Format(@"http://vip.stock.finance.sina.com.cn/{0}", item.SelectSingleNode("td/a").Attributes["href"].Value);
                var stockBonus = new StockBonus()
                {
                    //Code = stockCode,
                    //ShortName = name,
                    DateOfDeclaration = DateTime.Parse(nodes[0].InnerText),// 公告日期
                    Type = BounsType.StockOption,// 配股类型
                    ExdividendDate = DateTime.Parse(nodes[4].InnerText),// 除权除息日
                    RegisterDate = DateTime.Parse(nodes[5].InnerText), // 股权登记日
                };

                StockBonusDetailsParser(urlDetails, ref stockBonus);
                lstStockBonus.Add(stockBonus);
            }

            return lstStockBonus;
        }

        private void DoSingleContent(string url)
        {
            //  url = "http://xidong.net/File001/File_8766.html";
            string content = fh.GetWebContents(url, Encoding.UTF8);
            HtmlDocument doc = new HtmlDocument();
            doc.LoadHtml(content);
            HtmlNode root = doc.DocumentNode;
            string title = doc.GetElementbyId("xdintrobg").SelectSingleNode("h1").InnerText;
            Console.WriteLine(title);
            string contMain = Helper.String.StringHelper.SubStr(content, "<script type=\"text/javascript\" src=\"http://src.xidong.net/js/select.js\"></script>",
                "<div id=\"ggad-content-bottom\">"
                );
            contMain = contMain.Replace("<!-- google_ad_section_start -->", "");
            contMain = contMain.Replace("<!-- google_ad_section_end -->", "");
            Regex reg = new Regex("(?i)(?s)<script.*?</script>");
            contMain = reg.Replace(contMain, "");
             Console.WriteLine(contMain);

            string links = "";
            Dictionary<string, string> linkList = new Dictionary<string, string>();
            HtmlNode node = doc.GetElementbyId("emulelink");
            for (int i = 1; i <= 50; i++)
            {
                node = doc.GetElementbyId("emulelink");
                node = node.SelectSingleNode("table[1]/tr[" + i + "]");
                if (node != null)
                {
                    if (node.InnerText.IndexOf("用迅雷、eMule等软件下载") > -1) continue;
                    HtmlNode hn1 = node.SelectSingleNode("td[1]/a[1]");
                    if (hn1 != null)
                    {
                        string rs = "";
                        string href = hn1.Attributes["href"].Value;
                        string text = hn1.InnerText;
                        string size = "0";
                        rs += text + "$$";
                        HtmlNode hn2 = node.SelectSingleNode("td[2]");
                        if (hn2 != null)
                        {
                            size = hn2.InnerText;
                        }
                        rs += size + "$$";
                        rs += href;

                        Console.WriteLine(rs);
                    }
                }
            }

            //  Console.WriteLine(content);
        }

        public Image Parse(HtmlDocument d, string url)
        {
            doc = d;
            HtmlNode podright = doc.GetElementbyId("pod_right");

            foreach (HtmlNode childNode in podright.ChildNodes)
            {
                if (childNode.GetAttributeValue("class", string.Empty) == "publication_time")
                {
                    string dateText = childNode.InnerText;
                    DateTime date = DateTime.Parse(dateText);
                    image.Date = date.Date;
                }
            }

            HtmlNode head = doc.GetElementbyId("page_head");

            foreach (HtmlNode childNode in head.ChildNodes)
            {
                if (childNode.Name == "h1")
                {
                    string title = childNode.InnerText;
                    image.Title = title;
                }
            }

            GetDownloadLink();

            HtmlNode primary =
                doc.DocumentNode.Descendants().First(
                    x => x.GetAttributeValue("class", string.Empty) == "primary_photo" && x.Name == "div");

            HtmlNode prevLink = primary.ChildNodes.First(x => x.Name == "a");

            string prevLinkRef = prevLink.GetAttributeValue("href", string.Empty);

            image.PreviousDayUrl = "http://photography.nationalgeographic.com" + prevLinkRef;

            HtmlNode potdImage = prevLink.ChildNodes.First(x => x.Name == "img");

            image.Description = potdImage.GetAttributeValue("alt", string.Empty);

            image.Url = potdImage.GetAttributeValue("src", string.Empty);

            GetPhotographer();

            return image;
        }

        public IDictionary<string, string> Parse(string html)
        {
            var doc = new HtmlDocument
            {
                OptionUseIdAttribute = true,
                OptionFixNestedTags = true
            };

            doc.LoadHtml(html);

            var fundamentals = new Dictionary<string, string>();

            foreach (var row in doc.GetElementbyId("currentValuationTable").Element("tbody").Elements("tr"))
            {
                if (row.Element("th") == null)
                    continue;

                var fundamental = HtmlEntity.DeEntitize(row.Element("th").InnerText);
                var value = HtmlEntity.DeEntitize(row.Elements("td").First().InnerText);

                Log.DebugFormat("Found: {0} = {1}", fundamental, value);
                fundamentals.Add(fundamental, value);
            }

            return fundamentals;
        }

        public OtoMotoResultPage(string rawResponse)
        {
            // TODO: Complete member initialization
            this.rawResponse = rawResponse;
            HtmlDocument htmlDoc = new HtmlDocument();
            htmlDoc.LoadHtml(rawResponse);
            htmlDoc.OptionFixNestedTags = true;
            HtmlNode node = htmlDoc.GetElementbyId("mainRightOM");
            Console.WriteLine(node.InnerHtml);
            if (htmlDoc.ParseErrors != null)
            {
                // Handle any parse errors as required
                Console.WriteLine("Errors ;(");
            }
            else
            {
                Console.WriteLine("No errors, hurray!");
            }

            HtmlNode n = node.SelectSingleNode("div[@id='programList']");

            BuildCarList();
            //BuildLinkList();
            //BuildNextLink();
            //BuildPreviousLink();
        }

        public static IEnumerable<KillStatistic> Parse(string htmlPage)
        {
            HtmlDocument page = new HtmlDocument();
            page.LoadHtml(htmlPage);

            var tables = page.GetElementbyId("killstatistics").Descendants("table");

            if (tables.Count() < 2) throw new ArgumentException("Page format not correct");

            var statsTable = tables.Last();
            var tableRows = statsTable.Descendants("tr").Skip(2);

            IList<KillStatistic> extractedStatistics = new List<KillStatistic>();
            foreach(var row in tableRows)
            {
                var columns = row.Descendants("td");

                KillStatistic stat = new KillStatistic { Monster = columns.First().InnerText.Replace("&#160;", ""), Date = DateTime.Now.AddDays(-1) };
                stat.KilledPlayers = Convert.ToInt32(columns.ElementAt(1).InnerText.Replace("&#160;", ""));
                stat.KilledByPlayers = Convert.ToInt32(columns.ElementAt(2).InnerText.Replace("&#160;", ""));

                extractedStatistics.Add(stat);
            }

            return extractedStatistics;
        }

        public IEnumerable<Fixture> GetFixtures()
        {
            HtmlDocument doc = new HtmlDocument();
            doc.LoadHtml(ReadHtml());

            var calHolder = doc.GetElementbyId("CalendarHolder");

            var rows = calHolder.ChildNodes;

            foreach (var row in rows)
            {
                foreach (var column in row.ChildNodes)
                {
                    string currentHtml = column.InnerHtml;

                    while (currentHtml.Contains("a href"))
                                        {
                        yield return GetFixture(currentHtml);
                        int href = currentHtml.IndexOf("a href");
                        currentHtml = currentHtml.Substring(href + 1);
                    }
                }
            }

            yield break;
        }

        private void WriteContent(HtmlDocument doc)
        {
            HtmlNode bodyContent = doc.GetElementbyId("bodyContent");

            var heading = doc.CreateElement("h1");
            heading.InnerHtml = "Heading";
            bodyContent.AppendChild(heading);

            HtmlNode table = bodyContent.CreateElement("table");
            table.CreateAttributeWithValue("class", "table table-striped table-bordered");
            var tableHead = table.CreateElement("thead");
            var headerRow = tableHead.CreateElement("tr");
            headerRow.CreateElementWithHtml("td", "First");
            headerRow.CreateElementWithHtml("td", "Second");
            headerRow.CreateElementWithHtml("td", "Third");
            headerRow.CreateElementWithHtml("td", "Fourth");
            headerRow.CreateElementWithHtml("td", "Fifth");

            HtmlNode tableBody = table.CreateElement("tbody");
            const string text = "Fi fa fo fum fi fa fo fum fi fa fo fum fi fa fo fum";
            for (int i = 0; i < 10; i++)
            {
                HtmlNode bodyRow = tableBody.CreateElement("tr");
                bodyRow.CreateElementWithHtml("td", i + " first " + text);
                bodyRow.CreateElementWithHtml("td", i + " second " + text);
                bodyRow.CreateElementWithHtml("td", i + " third " + text);
                bodyRow.CreateElementWithHtml("td", i + " fourth " + text);
                bodyRow.CreateElementWithHtml("td", i + " fifth " + text);
            }
        }

        private void CasAuthenticate(Site site, ref CookieCollection cookies, ref HtmlDocument document)
        {
            // read the parameters we need to know
            var form = document.GetElementbyId("fm1");
            var hidden = document.DocumentNode.Descendants("input").Where(a => a.Attributes["type"].Value == "hidden");

            var parameters = new StringBuilder();

            foreach (var p in hidden)
            {
                parameters.Append(string.Format("{0}={1}&", p.Attributes["name"].Value, p.Attributes["value"].Value));
            }

            var action = form.Attributes["action"];
            var username = ConfigurationSettings.AppSettings["username"];
            var password = ConfigurationSettings.AppSettings["password"];

            parameters.Append(string.Format("{0}={1}&", "username", username));
            parameters.Append(string.Format("{0}={1}", "password", password));

            // location to redirect back to the application
            var redirectLocation = string.Empty;
            MakeWebCallWithParameters("https://cas.ucdavis.edu:8443" + action.Value, parameters.ToString(), ref cookies, out redirectLocation);

            // get the ticket
            var ticketUrl = string.Format("https://cas.ucdavis.edu:8443/cas/login?service={0}", redirectLocation);
            var location = string.Empty;
            ErrorTypes errorType;
            MakeWebCall(ticketUrl, false, ref cookies, ref document, out location, out errorType);

            // get the aspx auth id
            var nothing = string.Empty;
            MakeWebCall(location, false, ref cookies, ref document, out nothing, out errorType);
        }

 private static HtmlNode GetEmptyForm()
 {
     var htmlDoc = new HtmlDocument();
     htmlDoc.LoadHtml("<form id='f' action='/'></form>");
     var node = htmlDoc.GetElementbyId("f");
     return node;
 }