How to use QuerySelectorAllAsync method of PuppeteerSharp.Frame class
Best Puppeteer-sharp code snippet using PuppeteerSharp.Frame.QuerySelectorAllAsync
Program.cs
Source:Program.cs 
...198 AnsiConsole.WriteLine("模ææä¸Enteré®ç");199 await page.Keyboard.PressAsync("Enter");200 await page.WaitForNavigationAsync(); //注æ å¦æ导èªåçäºåå å¿
须使ç¨çå¾
导èª201 var Content = await page.GetContentAsync(); //è·å页é¢å
容202 var yuRUbf = await page.QuerySelectorAllAsync("div[class='yuRUbf']"); //è·åclass为yuRUbfæædiv203 AnsiConsole.WriteLine($"è·åå°å:{yuRUbf.Length}æ¡æç´¢æ°æ®\n");204 foreach (var item in yuRUbf)205 {206 var Tittle = await item.QuerySelectorAllAsync(@"a>h3");207 var Url = await item.QuerySelectorAllAsync(@"a");208 var StrTittle = await Tittle[0].GetPropertyAsync("innerText");209 var StrUrl = await Url[0].GetPropertyAsync("href");210 AnsiConsole.WriteLine($"æ é¢:{StrTittle.ToString().Replace("JSHandle:", "")}\nå°å:{StrUrl.ToString().Replace("JSHandle:", "")}\n\n");211 }212 AnsiConsole.WriteLine("çå¾
ä¸ç§");213 await page.WaitForTimeoutAsync(3000);214 AnsiConsole.WriteLine("ç»æ");215 };216 };217 return true;218 }219 /// <summary>220 /// å½å¼å¤è¯¾ç¨ç®åçè§é¢çæç« 221 /// </summary>222 /// <returns></returns>223 public static async void Ouchn()224 {225 var CourseList = new Dictionary<string, Page>();226 var Task = new List<Task>();227 var Pages = await browser.PagesAsync(); //è·åå½åææpage228 Console.WriteLine($"请æç
§æç¨æ¥,è¦å
³éææçEdgeçé¢");229 Console.WriteLine($"课ç¨ç»æ请è¾å
¥exitéåºè¯¾ç¨,å¨è¯¾ç¨æªå®ææ¶ä¹å¯ä»¥è¾å
¥exitéåº");230 Console.WriteLine($"课ç¨ç»æ请è¾å
¥exitéåºè¯¾ç¨,å¨è¯¾ç¨æªå®ææ¶ä¹å¯ä»¥è¾å
¥exitéåº");231 Console.WriteLine($"课ç¨ç»æ请è¾å
¥exitéåºè¯¾ç¨,å¨è¯¾ç¨æªå®ææ¶ä¹å¯ä»¥è¾å
¥exitéåº");232 Thread.Sleep(1000 * 5);233 Console.WriteLine($"è·åå°å½åæµè§å¨é¡µé¢æ:{Pages.Length}个");234 if (Pages.Length > 0)235 {236 Console.WriteLine("å¼å§å¹é
ææé¾æ¥æ¯å¦ä¸ºå½å¼è¯¾ç¨é¡µé¢...");237 for (int i = 0; i < Pages.Length; i++)238 {239 var Page = Pages[i];240 var Url = Page.Url.ToString();241 var Name = await Page.GetTitleAsync();242 if (Regex.IsMatch(Url, @"http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?id=[0-9]*"))243 {244 Console.WriteLine($"å¹é
æå:({Name}){Url}");245 CourseList.Add(Name, Page);246 }247 }248 if (CourseList.Count > 0)249 {250 Console.WriteLine($"å¹é
å°ç¬¦åå½å¼è¯¾ç¨é¡µé¢æ»æ°:{CourseList.Count}个");251 }252 else253 {254 Console.WriteLine($"没æå¹é
å°ç¬¦åå½å¼è¯¾ç¨é¡µé¢,请è¾å
¥ä»»æé®éåº...");255 Console.ReadLine();256 }257 }258 else259 {260 Console.WriteLine($"å½åè·åå°é¡µé¢ä¸º0,请è¾å
¥ä»»æé®éåº...");261 Console.ReadLine();262 }263 Console.WriteLine($"\nå¼å§å建线ç¨...");264 foreach (var item in CourseList)265 {266 var Tas = new System.Threading.Tasks.Task(async () =>267 {268 var Links = await item.Value.QuerySelectorAllAsync("a[class='aalink']"); //è·å第ä¸ä¸ªé¡µé¢çææaæ ç¾class为aalinkç269 Console.WriteLine($"[课ç¨:{item.Key}]è·åå°{Links.Length}个é¾æ¥");270 async Task<bool> OpenLink(ElementHandle[] handles)271 {272 try273 {274 var r = new Random();275 for (int i = 0; i < Links.Length; i++)276 {277 var URL = await Links[i].GetPropertyAsync("href");278 if (URL.ToString().Replace("JSHandle:", "").Contains(""))279 {280 }281 var Page = await browser.NewPageAsync();282 await Page.GoToAsync(URL.ToString().Replace("JSHandle:", ""), new NavigationOptions() { });...
DOMWorld.cs
Source:DOMWorld.cs
...93 var document = await GetDocument().ConfigureAwait(false);94 var value = await document.QuerySelectorAsync(selector).ConfigureAwait(false);95 return value;96 }97 internal async Task<ElementHandle[]> QuerySelectorAllAsync(string selector)98 {99 var document = await GetDocument().ConfigureAwait(false);100 var value = await document.QuerySelectorAllAsync(selector).ConfigureAwait(false);101 return value;102 }103 internal async Task<ElementHandle[]> XPathAsync(string expression)104 {105 var document = await GetDocument().ConfigureAwait(false);106 var value = await document.XPathAsync(expression).ConfigureAwait(false);107 return value;108 }109 internal Task<string> GetContentAsync() => EvaluateFunctionAsync<string>(@"() => {110 let retVal = '';111 if (document.doctype)112 retVal = new XMLSerializer().serializeToString(document.doctype);113 if (document.documentElement)114 retVal += document.documentElement.outerHTML;...
Methods.cs
Source:Methods.cs
...29 string text, int timeBetweenKeystrokes = 0)30 {31 data.Logger.LogHeader();32 var frame = GetFrame(data);33 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];34 await elem.TypeAsync(text, new PuppeteerSharp.Input.TypeOptions { Delay = timeBetweenKeystrokes });35 data.Logger.Log($"Typed {text}", LogColors.DarkSalmon);36 }37 [Block("Types text in an input field with human-like random delays", name = "Type Human")]38 public static async Task PuppeteerTypeElementHuman(BotData data, FindElementBy findBy, string identifier, int index,39 string text)40 {41 data.Logger.LogHeader();42 var frame = GetFrame(data);43 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];44 foreach (var c in text)45 {46 await elem.TypeAsync(c.ToString());47 await Task.Delay(data.Random.Next(100, 300)); // Wait between 100 and 300 ms (average human type speed is 60 WPM ~ 360 CPM)48 }49 data.Logger.Log($"Typed {text}", LogColors.DarkSalmon);50 }51 [Block("Clicks an element", name = "Click")]52 public static async Task PuppeteerClick(BotData data, FindElementBy findBy, string identifier, int index,53 PuppeteerSharp.Input.MouseButton mouseButton = PuppeteerSharp.Input.MouseButton.Left, int clickCount = 1,54 int timeBetweenClicks = 0)55 {56 data.Logger.LogHeader();57 var frame = GetFrame(data);58 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];59 await elem.ClickAsync(new PuppeteerSharp.Input.ClickOptions { Button = mouseButton, ClickCount = clickCount, Delay = timeBetweenClicks });60 data.Logger.Log($"Clicked {clickCount} time(s) with {mouseButton} button", LogColors.DarkSalmon);61 }62 [Block("Submits a form", name = "Submit")]63 public static async Task PuppeteerSubmit(BotData data, FindElementBy findBy, string identifier, int index)64 {65 data.Logger.LogHeader();66 var elemScript = GetElementScript(findBy, identifier, index);67 var frame = GetFrame(data);68 var script = elemScript + ".submit();";69 await frame.EvaluateExpressionAsync(script);70 data.Logger.Log($"Submitted the form by executing {script}", LogColors.DarkSalmon);71 }72 [Block("Selects a value in a select element", name = "Select")]73 public static async Task PuppeteerSelect(BotData data, FindElementBy findBy, string identifier, int index, string value)74 {75 data.Logger.LogHeader();76 var frame = GetFrame(data);77 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];78 await elem.SelectAsync(value);79 data.Logger.Log($"Selected value {value}", LogColors.DarkSalmon);80 }81 [Block("Gets the value of an attribute of an element", name = "Get Attribute Value")]82 public static async Task<string> PuppeteerGetAttributeValue(BotData data, FindElementBy findBy, string identifier, int index,83 string attributeName = "innerText")84 {85 data.Logger.LogHeader();86 var elemScript = GetElementScript(findBy, identifier, index);87 var frame = GetFrame(data);88 var script = $"{elemScript}.{attributeName};";89 var value = await frame.EvaluateExpressionAsync<string>(script);90 data.Logger.Log($"Got value {value} of attribute {attributeName} by executing {script}", LogColors.DarkSalmon);91 return value;92 }93 [Block("Gets the values of an attribute of multiple elements", name = "Get Attribute Value All")]94 public static async Task<List<string>> PuppeteerGetAttributeValueAll(BotData data, FindElementBy findBy, string identifier,95 string attributeName = "innerText")96 {97 data.Logger.LogHeader();98 var elemScript = GetElementsScript(findBy, identifier);99 var frame = GetFrame(data);100 var script = $"Array.prototype.slice.call({elemScript}).map((item) => item.{attributeName})";101 var values = await frame.EvaluateExpressionAsync<string[]>(script);102 data.Logger.Log($"Got {values.Length} values for attribute {attributeName} by executing {script}", LogColors.DarkSalmon);103 return values.ToList();104 }105 [Block("Checks if an element is currently being displayed on the page", name = "Is Displayed")]106 public static async Task<bool> PuppeteerIsDisplayed(BotData data, FindElementBy findBy, string identifier, int index)107 {108 data.Logger.LogHeader();109 var elemScript = GetElementScript(findBy, identifier, index);110 var frame = GetFrame(data);111 var script = $"window.getComputedStyle({elemScript}).display !== 'none';";112 var displayed = await frame.EvaluateExpressionAsync<bool>(script);113 data.Logger.Log($"Found out the element is{(displayed ? "" : " not")} displayed by executing {script}", LogColors.DarkSalmon);114 return displayed;115 }116 [Block("Uploads a file to the selected element", name = "Upload File")]117 public static async Task PuppeteerUploadFile(BotData data, FindElementBy findBy, string identifier, int index, string filePath)118 {119 data.Logger.LogHeader();120 var frame = GetFrame(data);121 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];122 await elem.UploadFileAsync(filePath);123 data.Logger.Log($"Uploaded {filePath} to the element", LogColors.DarkSalmon);124 }125 [Block("Gets the X coordinate of the element in pixels", name = "Get Position X")]126 public static async Task<int> PuppeteerGetPositionX(BotData data, FindElementBy findBy, string identifier, int index)127 {128 data.Logger.LogHeader();129 var frame = GetFrame(data);130 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];131 var x = (int)(await elem.BoundingBoxAsync()).X;132 data.Logger.Log($"The X coordinate of the element is {x}", LogColors.DarkSalmon);133 return x;134 }135 [Block("Gets the Y coordinate of the element in pixels", name = "Get Position Y")]136 public static async Task<int> PuppeteerGetPositionY(BotData data, FindElementBy findBy, string identifier, int index)137 {138 data.Logger.LogHeader();139 var frame = GetFrame(data);140 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];141 var y = (int)(await elem.BoundingBoxAsync()).Y;142 data.Logger.Log($"The Y coordinate of the element is {y}", LogColors.DarkSalmon);143 return y;144 }145 [Block("Gets the width of the element in pixels", name = "Get Width")]146 public static async Task<int> PuppeteerGetWidth(BotData data, FindElementBy findBy, string identifier, int index)147 {148 data.Logger.LogHeader();149 var frame = GetFrame(data);150 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];151 var width = (int)(await elem.BoundingBoxAsync()).Width;152 data.Logger.Log($"The width of the element is {width}", LogColors.DarkSalmon);153 return width;154 }155 [Block("Gets the height of the element in pixels", name = "Get Height")]156 public static async Task<int> PuppeteerGetHeight(BotData data, FindElementBy findBy, string identifier, int index)157 {158 data.Logger.LogHeader();159 var frame = GetFrame(data);160 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];161 var height = (int)(await elem.BoundingBoxAsync()).Height;162 data.Logger.Log($"The height of the element is {height}", LogColors.DarkSalmon);163 return height;164 }165 [Block("Takes a screenshot of the element and saves it to an output file", name = "Screenshot Element")]166 public static async Task PuppeteerScreenshotElement(BotData data, FindElementBy findBy, string identifier, int index,167 string fileName, bool fullPage = false, bool omitBackground = false)168 {169 data.Logger.LogHeader();170 if (data.Providers.Security.RestrictBlocksToCWD)171 FileUtils.ThrowIfNotInCWD(fileName);172 var frame = GetFrame(data);173 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];174 await elem.ScreenshotAsync(fileName, new PuppeteerSharp.ScreenshotOptions { FullPage = fullPage, OmitBackground = omitBackground });175 data.Logger.Log($"Took a screenshot of the element and saved it to {fileName}", LogColors.DarkSalmon);176 }177 [Block("Takes a screenshot of the element and converts it to a base64 string", name = "Screenshot Element Base64")]178 public static async Task<string> PuppeteerScreenshotBase64(BotData data, FindElementBy findBy, string identifier, int index,179 bool fullPage = false, bool omitBackground = false)180 {181 data.Logger.LogHeader();182 var frame = GetFrame(data);183 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];184 var base64 = await elem.ScreenshotBase64Async(new PuppeteerSharp.ScreenshotOptions { FullPage = fullPage, OmitBackground = omitBackground });185 data.Logger.Log($"Took a screenshot of the element as base64", LogColors.DarkSalmon);186 return base64;187 }188 [Block("Switches to a different iframe", name = "Switch to Frame")]189 public static async Task PuppeteerSwitchToFrame(BotData data, FindElementBy findBy, string identifier, int index)190 {191 data.Logger.LogHeader();192 var frame = GetFrame(data);193 var elem = (await frame.QuerySelectorAllAsync(BuildSelector(findBy, identifier)))[index];194 data.Objects["puppeteerFrame"] = await elem.ContentFrameAsync();195 data.Logger.Log($"Switched to iframe", LogColors.DarkSalmon);196 }197 [Block("Waits for an element to appear on the page", name = "Wait for Element")]198 public static async Task PuppeteerWaitForElement(BotData data, FindElementBy findBy, string identifier, bool hidden = false, bool visible = true,199 int timeout = 30000)200 {201 data.Logger.LogHeader();202 var frame = GetFrame(data);203 await frame.WaitForSelectorAsync(BuildSelector(findBy, identifier),204 new PuppeteerSharp.WaitForSelectorOptions { Hidden = hidden, Visible = visible, Timeout = timeout });205 data.Logger.Log($"Waited for element with {findBy} {identifier}", LogColors.DarkSalmon);206 }207 private static string GetElementsScript(FindElementBy findBy, string identifier)...
ClickerBot.cs
Source:ClickerBot.cs
...102 {103 var timeout = 1000;104 await frame.WaitForTimeoutAsync(timeout);105 await UpdateWrongQuizAnswers(frame);106 var highImportanceButtons = await frame.QuerySelectorAllAsync(".question-example-overlay:not([hidden='hidden']) .example-buttons .button:not(.is-disabled)");107 foreach (var buttonHandle in highImportanceButtons)108 {109 var boundingBox = await buttonHandle.BoundingBoxAsync();110 var isVisible = boundingBox != null && boundingBox.Width > 0 && boundingBox.Height > 0;111 if (!isVisible)112 continue;113 var buttonText = await frame.GetInnerText(buttonHandle);114 var isCandidate = new[] { "schlieÃen" }.Any(x => buttonText.ToLower().Contains(x));115 if (isCandidate)116 return buttonHandle;117 }118 var decisionTextHandle = await frame.QuerySelectorAllAsync(".decision-wrapper .text-column");119 if (decisionTextHandle.Any())120 {121 var decisionText = await frame.EvaluateFunctionAsync<string>("el => el.innerText", decisionTextHandle.First());122 var decisionHash = decisionText.GetHashCode();123 var choices = await frame.QuerySelectorAllAsync(".content-region .decision-choices li.choice button:not(.is-disabled)");124 Question decision = null;125 if (_decisions.Questions.All(x => x.Hash != decisionHash))126 {127 decision = new Question { Hash = decisionHash };128 foreach (var elementHandle in choices)129 {130 var choiceText = await frame.GetInnerText(elementHandle);131 decision.Answers.Add(new Answer { Result = null, Text = choiceText });132 }133 _decisions.Questions.Add(decision);134 }135 else136 decision = _decisions.Questions.Single(x => x.Hash == decisionHash);137 var bestAnswer = decision.GetBestAnswer();138 if (bestAnswer != null)139 {140 foreach (var elementHandle in choices)141 {142 var boundingBox = await elementHandle.BoundingBoxAsync();143 var isVisible = boundingBox != null && boundingBox.Width > 0 && boundingBox.Height > 0;144 if (!isVisible)145 continue;146 var choiceText = await frame.EvaluateFunctionAsync<string>("e => e.innerText", elementHandle);147 if (choiceText == bestAnswer)148 return elementHandle;149 }150 }151 }152 var quizChoices = await frame.QuerySelectorAllAsync(".content-region .question-choices li.choice button:not(.is-disabled)");153 if (quizChoices.Any())154 {155 var contentHash = await GetQuizHash(frame);156 var bestAnswer = _quiz.Questions.Single(x => x.Hash == contentHash).GetBestAnswer();157 if (bestAnswer != null)158 {159 foreach (var elementHandle in quizChoices)160 {161 var boundingBox = await elementHandle.BoundingBoxAsync();162 var isVisible = boundingBox != null && boundingBox.Width > 0 && boundingBox.Height > 0;163 if (!isVisible)164 continue;165 var choiceText = await frame.GetInnerText(elementHandle);166 if (choiceText == bestAnswer)167 return elementHandle;168 }169 }170 }171 var regularButtons = await frame.QuerySelectorAllAsync(".content-region button.action:not(.is-disabled)");172 var exampleButtons = await frame.QuerySelectorAllAsync(".example-button-container .button:not(.is-disabled)");173 var buttonHandles = regularButtons.Concat(exampleButtons).Concat(highImportanceButtons);174 foreach (var buttonHandle in buttonHandles)175 {176 var boundingBox = await buttonHandle.BoundingBoxAsync();177 var isVisible = boundingBox != null && boundingBox.Width > 0 && boundingBox.Height > 0;178 if (!isVisible)179 continue;180 var buttonText = await frame.GetInnerText(buttonHandle);181 var isCandidate = new[] { "beginnen", "weiter", "mehr", "anzeigen", "schlieÃen", "wiederholen" }.Any(x => buttonText.ToLower().Contains(x));182 if (isCandidate)183 return buttonHandle;184 }185 var currentCalloutHandles = await frame.QuerySelectorAllAsync(".callout-trigger.is-current");186 if (!currentCalloutHandles.Any())187 {188 var calloutHandles = await frame.QuerySelectorAllAsync(".callout-trigger.is-unlocked:not(.is-current)");189 if (calloutHandles.Any())190 return calloutHandles.First();191 }192 else193 {194 var next = await frame.QuerySelectorAllAsync(".callout-navigation.next a");195 if (next.Any())196 {197 var boundingBox = await next.First().BoundingBoxAsync();198 var isVisible = boundingBox != null && boundingBox.Width > 0 && boundingBox.Height > 0;199 if (isVisible)200 return next.First();201 }202 }203 var bannerHandles = await frame.QuerySelectorAllAsync(".banner-wrapper.is-unlocked");204 if (bannerHandles.Any())205 return bannerHandles.First();206 var explorerHandles = await frame.QuerySelectorAllAsync(".explorer-trigger.is-unlocked:not(.is-completed)");207 if (explorerHandles.Any())208 return explorerHandles.First();209 var flashCardHandles = await frame.QuerySelectorAllAsync(".content-region article.flash-card:not(.flash-card-flipped) .flash-card-side");210 if (flashCardHandles.Any())211 return flashCardHandles.First();212 return null;213 }214 private async Task<int> GetQuizHash(Frame frame)215 {216 var heading = await frame.TryGetTextContent(".content-heading") ?? "";217 var content = await frame.TryGetTextContent(".content_card") ?? "";218 return (heading + content).GetHashCode();219 }220 private async Task UpdateWrongQuizAnswers(Frame frame)221 {222 var quizChoices = await frame.QuerySelectorAllAsync(".content-region .question-choices li.choice button");223 if (quizChoices.Length > 0)224 {225 var contentHash = await GetQuizHash(frame);226 if (_quiz.Questions.All(x => x.Hash != contentHash))227 {228 var question = new Question() { Hash = contentHash };229 foreach (var elementHandle in quizChoices)230 {231 var choiceText = await frame.GetInnerText(elementHandle);232 question.Answers.Add(new Answer { Result = null, Text = choiceText });233 }234 235 _quiz.Questions.Add(question);236 //seems to be a new quiz, abort for now....
Form1.cs
Source:Form1.cs
...216 //public async Task<ElementHandle[]> GetAllElement_ByCssSelector(string selector)217 //{218 // ElementHandle[] eles;219 // if (usingFrame)220 // eles = await frame.QuerySelectorAllAsync(selector);221 // else222 // eles = await page.QuerySelectorAllAsync(selector);223 // return eles;224 //}225 //public async Task<bool> elementExist_ByCssSelector(string selector)226 //{227 // ElementHandle ele;228 // if (usingFrame)229 // ele = await frame.QuerySelectorAsync(selector);230 // else231 // ele = await page.QuerySelectorAsync(selector);232 // if (ele != null) return true;233 // else return false;234 //}235 //public async Task ExecuteJS_Script(string jsText)236 //{...
BlazorTest.cs
Source:BlazorTest.cs
...247248 await page.GoToAsync("https://github.com/kblok/puppeteer-sharp");249250 var element = await page.QuerySelectorAsync("h1 > strong > a");251 var elements = await page.QuerySelectorAllAsync("a");252253 Assert.NotNull(element);254 Assert.NotEmpty(elements);255256 var missingElement = await page.QuerySelectorAsync("a#missing-link");257 var missingElements = await page.QuerySelectorAllAsync("a.missing-link");258259 Assert.Null(missingElement);260 Assert.Empty(missingElements);261262 var innerHtml = await element.GetPropertyAsync("innerHTML").Result.JsonValueAsync<string>();263 var outerHtml = await element.GetPropertyAsync("outerHTML").Result.JsonValueAsync<string>();264 var url = await element.GetPropertyAsync("href").Result.JsonValueAsync<string>();265266 Assert.Equal("puppeteer-sharp", innerHtml);267 Assert.Equal("<a data-pjax=\"#js-repo-pjax-container\" href=\"/kblok/puppeteer-sharp\">puppeteer-sharp</a>", outerHtml);268 Assert.Equal("https://github.com/kblok/puppeteer-sharp", url);269270 var innerText = await page.QuerySelectorAsync("h1 > strong > a").EvaluateFunctionAsync<string>("node => node.innerText");271 var outerText = await page.QuerySelectorAsync("h1 > strong > a").EvaluateFunctionAsync<string>("node => node.outerText");
...
Examples.cs
Source:Examples.cs
...118 public async Task query()119 {120 await _page.GoToAsync("https://github.com/hardkoded/puppeteer-sharp");121 var element = await _page.QuerySelectorAsync("div#readme");122 var elements = await _page.QuerySelectorAllAsync("div");123 Assert.NotNull(element);124 Assert.NotEmpty(elements);125 var missingElement = await _page.QuerySelectorAsync("div#missing");126 var missingElements = await _page.QuerySelectorAllAsync("div.missing");127 Assert.Null(missingElement);128 Assert.Empty(missingElements);129 var elementInElement = await element.QuerySelectorAsync("h1");130 var elementsInElement = await element.QuerySelectorAllAsync("h1");131 Assert.NotNull(elementInElement);132 Assert.NotEmpty(elementsInElement);133 }134 [Fact]135 public async Task evaluate()136 {137 await _page.GoToAsync("https://github.com/hardkoded/puppeteer-sharp");138 var element = await _page.QuerySelectorAsync("h1 > strong > a");139 var outerHtml = await element.EvaluateFunctionAsync<string>("e => e.outerHTML");140 var innerText = await element.EvaluateFunctionAsync<string>("e => e.innerText");141 var url = await element.EvaluateFunctionAsync<string>("e => e.getAttribute('href')");142 var hasContent = await element.EvaluateFunctionAsync<bool>("(e, value) => e.textContent.includes(value)", "puppeteer-sharp");143 Assert.Equal("<a data-pjax=\"#js-repo-pjax-container\" href=\"/hardkoded/puppeteer-sharp\">puppeteer-sharp</a>", outerHtml);144 Assert.Equal("puppeteer-sharp", innerText);...
Scrape.cs
Source:Scrape.cs
...59 await page.GoToAsync(url, timeout: 0);60 string rawTrace = await page.Tracing.StopAsync();61 string content = await page.GetContentAsync();62 //Image63 var imageElements = await page.QuerySelectorAllAsync("img");64 if (imageElements != null)65 {66 imageCount = imageElements.Count();67 imageProperties = await new ImageHelper().GetImageData(imageElements);68 }69 await browser.CloseAsync();70 //Trace71 traces = new TraceHelper().GetTraceData(rawTrace);72 Uri requestUri = new Uri(url);73 string host = requestUri.Host;74 HtmlDocument doc = new HtmlDocument();75 doc.LoadHtml(content);76 var iFrameNodes = doc.DocumentNode.SelectNodes("//iframe");77 var linkNodes = doc.DocumentNode.SelectNodes("//a");...
QuerySelectorAllAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 {9 };10 var browser = await Puppeteer.LaunchAsync(options);11 var page = await browser.NewPageAsync();12 var elements = await page.QuerySelectorAllAsync("input[type=text]");13 Console.WriteLine("Number of elements found: " + elements.Length);14 await browser.CloseAsync();15 }16 }17}18using System;19using System.Threading.Tasks;20using PuppeteerSharp;21{22 {23 static async Task Main(string[] args)24 {25 {26 };27 var browser = await Puppeteer.LaunchAsync(options);28 var page = await browser.NewPageAsync();29 var element = await page.QuerySelectorAsync("input[type=text]");30 Console.WriteLine("Element found: " + element);31 await browser.CloseAsync();32 }33 }34}35using System;36using System.Threading.Tasks;37using PuppeteerSharp;38{39 {40 static async Task Main(string[] args)41 {42 {43 };44 var browser = await Puppeteer.LaunchAsync(options);45 var page = await browser.NewPageAsync();46 var element = await page.QuerySelectorAsync("input[type=text]");47 Console.WriteLine("Element found: " + element);48 await browser.CloseAsync();49 }50 }51}52using System;53using System.Threading.Tasks;54using PuppeteerSharp;55{56 {57 static async Task Main(string[] args)58 {59 {60 };
QuerySelectorAllAsync
Using AI Code Generation
1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });2var page = await browser.NewPageAsync();3var elements = await page.QuerySelectorAllAsync("a");4foreach (var element in elements)5{6 Console.WriteLine(await element.GetAttributeAsync("href"));7}8await browser.CloseAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });10var page = await browser.NewPageAsync();11var element = await page.QuerySelectorAsync("a");12Console.WriteLine(await element.GetAttributeAsync("href"));13await browser.CloseAsync();14var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });15var page = await browser.NewPageAsync();16var elements = await page.QuerySelectorAllAsync("a");17foreach (var element in elements)18{19 Console.WriteLine(await element.GetAttributeAsync("href"));20}21await browser.CloseAsync();22var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });23var page = await browser.NewPageAsync();24var element = await page.QuerySelectorAsync("a");25Console.WriteLine(await element.GetAttributeAsync("href"));26await browser.CloseAsync();27var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });28var page = await browser.NewPageAsync();29var element = await page.QuerySelectorAsync("a");30var elements = await element.QuerySelectorAllAsync("a");31foreach (var el in elements)32{33 Console.WriteLine(await el.GetAttributeAsync("href"));34}35await browser.CloseAsync();36var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
QuerySelectorAllAsync
Using AI Code Generation
1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3});4var page = await browser.NewPageAsync();5var element = await page.QuerySelectorAsync("input");6await element.TypeAsync("Hello World");7await page.Keyboard.PressAsync("Enter");8await page.WaitForNavigationAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11});12var page = await browser.NewPageAsync();13var element = await page.QuerySelectorAsync("input");14await element.TypeAsync("Hello World");15await page.Keyboard.PressAsync("Enter");16await page.WaitForNavigationAsync();17var browser = await Puppeteer.LaunchAsync(new LaunchOptions18{19});20var page = await browser.NewPageAsync();21var element = await page.QuerySelectorAsync("input");22await element.TypeAsync("Hello World");23await page.Keyboard.PressAsync("Enter");24await page.WaitForNavigationAsync();25var browser = await Puppeteer.LaunchAsync(new LaunchOptions26{27});28var page = await browser.NewPageAsync();29var element = await page.QuerySelectorAsync("input");30await element.TypeAsync("Hello World");31await page.Keyboard.PressAsync("Enter");32await page.WaitForNavigationAsync();33var browser = await Puppeteer.LaunchAsync(new LaunchOptions34{35});36var page = await browser.NewPageAsync();37var element = await page.QuerySelectorAsync("input");38await element.TypeAsync("Hello World");39await page.Keyboard.PressAsync("Enter");40await page.WaitForNavigationAsync();
QuerySelectorAllAsync
Using AI Code Generation
1var frame = await page.QuerySelectorAsync("iframe");2var elements = await frame.QuerySelectorAllAsync("a");3foreach (var element in elements)4{5 Console.WriteLine(element.GetAttribute("href"));6}7var elements = await page.QuerySelectorAllAsync("a");8foreach (var element in elements)9{10 Console.WriteLine(element.GetAttribute("href"));11}12var elements = await page.QuerySelectorAsync("a");13foreach (var element in elements)14{15 Console.WriteLine(element.GetAttribute("href"));16}
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Most used method in Frame
- GoToAsync
- WaitForNavigationAsync
- EvaluateExpressionAsync
- EvaluateFunctionAsync
- EvaluateExpressionHandleAsync
- EvaluateFunctionHandleAsync
- GetExecutionContextAsync
- WaitForSelectorAsync
- WaitForXPathAsync
- WaitForTimeoutAsync
- WaitForFunctionAsync
- WaitForExpressionAsync
- SelectAsync
- QuerySelectorAsync
- QuerySelectorAllAsync
- XPathAsync
- AddStyleTag
- AddScriptTag
- AddStyleTagAsync
- AddScriptTagAsync
- GetContentAsync
- SetContentAsync
- GetTitleAsync
- ClickAsync
- HoverAsync
- FocusAsync
- TypeAsync
- AddChildFrame
- RemoveChildFrame
- OnLoadingStopped
- OnLifecycleEvent
- Navigated
- NavigatedWithinDocument
- Detach
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