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How to use Dispose method of PuppeteerSharp.Page class
Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.Dispose
WebScraper.cs
Source:WebScraper.cs 
...133 private async Task<Bitmap> SnapshotBitmapAsync()134 {135 var data = await m_page.ScreenshotStreamAsync();136 var image = new Bitmap(data);137 data.Dispose();138 return image;139 }140 /// <summary>141 /// Simulates key presses on page.142 /// </summary>143 /// <param name="text">Text to send to page.</param>144 public void SendKeys(string text)145 {146 SendKeysAsync(text).Wait();147 }148 private async Task SendKeysAsync(string text)149 {150 await m_page.Keyboard.TypeAsync(text);151 }152 /// <summary>153 /// Simulates moving the mouse on the page.154 ///155 /// Note: this does not move the system mouse.156 /// </summary>157 /// <param name="x">X coordinates to move mouse to.</param>158 /// <param name="y">Y coordinates to move mouse to.</param>159 public void MoveMouse(decimal x, decimal y)160 {161 MoveMouseAsync(x, y).Wait();162 }163 private async Task MoveMouseAsync(decimal x, decimal y)164 {165 await m_page.Mouse.MoveAsync(x, y);166 m_MouseX = x;167 m_MouseY = y;168 }169 /// <summary>170 /// Simulates a mouse click on page.171 /// </summary>172 /// <param name="button">Mouse button to simulate.</param>173 public void MouseClick(MouseButton button)174 {175 MouseClickAsync(button).Wait();176 }177 private async Task MouseClickAsync(MouseButton button)178 {179 await m_page.Mouse.ClickAsync(m_MouseX, m_MouseY, new ClickOptions{ Button = button == MouseButton.Left ? PuppeteerSharp.Input.MouseButton.Left : PuppeteerSharp.Input.MouseButton.Right });180 }181 /// <summary>182 /// Simulates a mouse up event on page.183 /// </summary>184 /// <param name="button">Mouse button to simulate.</param>185 public void MouseUp(MouseButton button)186 {187 MouseUpAsync(button).Wait();188 189 }190 private async Task MouseUpAsync(MouseButton button)191 {192 await m_page.Mouse.UpAsync(new ClickOptions { Button = button == MouseButton.Left ? PuppeteerSharp.Input.MouseButton.Left : PuppeteerSharp.Input.MouseButton.Right });193 }194 /// <summary>195 /// Simulates a mouse down event on page.196 /// </summary>197 /// <param name="button">Mouse button to simulate.</param>198 public void MouseDown(MouseButton button)199 {200 MouseDownAsync(button).Wait();201 }202 private async Task MouseDownAsync(MouseButton button)203 {204 await m_page.Mouse.DownAsync(new ClickOptions { Button = button == MouseButton.Left ? PuppeteerSharp.Input.MouseButton.Left : PuppeteerSharp.Input.MouseButton.Right });205 }206 /// <summary>207 /// Simulates a touch tap on a page.208 /// </summary>209 /// <param name="target">Javascript selector for element to tap on.</param>210 public void TapScreen(string target)211 {212 TapScreenAsync(target).Wait();213 }214 private async Task TapScreenAsync(string target)215 {216 await m_page.TapAsync(target);217 }218 /// <summary>219 /// Generates a pdf of the page.220 /// </summary>221 /// <returns>Stream containing the pdf data.</returns>222 public Stream CreatePdf()223 {224 var data = CreatePdfAsync();225 data.Wait();226 return data.Result;227 }228 private async Task<Stream> CreatePdfAsync()229 {230 return await m_page.PdfStreamAsync();231 }232 /// <summary>233 /// Waits for expression to be to be true.234 /// </summary>235 /// <param name="expression">Expression to wait on.</param>236 public void WaitOnScript(string expression)237 {238 WaitOnScriptAsync(expression).Wait();239 }240 private async Task WaitOnScriptAsync(string expression)241 {242 await m_page.WaitForExpressionAsync(expression);243 }244 /// <summary>245 /// Selects element on page to have focus.246 /// </summary>247 /// <param name="target">Javascript selector to make have focus.</param>248 public void Focus(string target)249 {250 FocusAsync(target).Wait();251 }252 private async Task FocusAsync(string target)253 {254 await m_page.FocusAsync(target);255 }256 /// <summary>257 /// Clicks on target element on page.258 /// </summary>259 /// <param name="target">Javascript selector of element to click on.</param>260 public void Click(string target)261 {262 ClickAsync(target).Wait();263 }264 private async Task ClickAsync(string target)265 {266 await m_page.ClickAsync(target);267 }268 /// <summary>269 /// Html content of page. Useful for scraping the html directly.270 /// </summary>271 public string Content272 {273 get274 {275 var data = m_page.GetContentAsync();276 data.Wait();277 return data.Result;278 }279 set280 {281 var data = m_page.SetContentAsync(value);282 data.Wait();283 }284 }285 /// <inheritdoc />286 /// <summary>287 /// Dispose method.288 /// This will close out chromium session.289 /// </summary>290 public void Dispose()291 {292 m_browser?.Dispose();293 m_page?.Dispose();294 }295 }296}...
SaveWebPage.xaml.cs
Source:SaveWebPage.xaml.cs
...75 }7677 //å¨æåè®°å¾å
³éæµè§å¨åéæ¾èµæº78 browser.Disconnect();79 browser.Dispose();80 }81 catch(Exception ex)82 {83 EMessageBox.Show(ex.Message);84 }85 }8687 private async void btn_SaveAsPDF_Click(object sender, RoutedEventArgs e)88 {89 //æå¼ç½é¡µçæä½è·ä¸é¢æ¯ä¸æ ·ç90 try91 {92 await new PuppeteerSharp.BrowserFetcher().DownloadAsync(PuppeteerSharp.BrowserFetcher.DefaultRevision);93 var browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new PuppeteerSharp.LaunchOptions94 {95 Headless = true96 });97 var page = await browser.NewPageAsync(); //æå¼ä¸ä¸ªæ°æ ç¾98 await page.GoToAsync(this.tbox_Url.Text); //访é®é¡µé¢99100 //设置PDFé项101 PuppeteerSharp.PdfOptions pdfOptions = new PuppeteerSharp.PdfOptions();102 pdfOptions.DisplayHeaderFooter = false; //æ¯å¦æ¾ç¤ºé¡µç页è103 pdfOptions.FooterTemplate = ""; //页èææ¬104105 var width = await page.EvaluateFunctionAsync<int>("function getWidth(){return document.body.scrollWidth}");106 var height = await page.EvaluateFunctionAsync<int>("function getHeight(){return document.body.scrollHeight}");107108 pdfOptions.Width = $"{width}px";109 pdfOptions.Height = $"{height}px";110111 pdfOptions.HeaderTemplate = ""; //页çææ¬112 pdfOptions.Landscape = false; //çº¸å¼ æ¹å false-åç´ true-æ°´å¹³113 pdfOptions.MarginOptions = new PuppeteerSharp.Media.MarginOptions() { Bottom = "0px", Left = "0px", Right = "0px", Top = "0px" }; //çº¸å¼ è¾¹è·ï¼éè¦è®¾ç½®å¸¦åä½çå¼ï¼é»è®¤å¼æ¯None114 pdfOptions.Scale = 1m; //PDF缩æ¾ï¼ä»0-1115 pdfOptions.PrintBackground = true;116117 var fileName = Environment.CurrentDirectory + $"\\download\\{await page.GetTitleAsync()}.pdf";118119 if (System.IO.File.Exists(fileName))120 {121 fileName = fileName.Replace(".pdf", $"{DateTime.Now.ToString("ffff")}.pdf");122 }123124 //ä¿åPDF125 await page.PdfAsync(fileName, pdfOptions);126 EMessageBox.Show($"{fileName}ä¿åæå");127128 //å¨æåè®°å¾å
³éæµè§å¨åéæ¾èµæº129 browser.Disconnect();130 browser.Dispose();131 }132 catch(Exception ex)133 {134 EMessageBox.Show(ex.Message);135 }136 }137 }138}
...
Form1.cs
Source:Form1.cs
...79 //dispose browser80 if (browser != null)81 {82 await browser.CloseAsync();83 browser.Dispose();84 }85 }86 }87}...
PuppeteerBrowser.cs
Source:PuppeteerBrowser.cs
...70 {71 logger.Info($"{this.Name}: Recreating PuppeteerBrowser");72 lock (browserLock)73 {74 this.page.Dispose();75 this.browser.CloseAsync().Wait();76 }77 System.Threading.Thread.Sleep(500);78 Init();79 }80 #region IDisposable Support81 private bool disposedValue = false; // To detect redundant calls82 protected virtual void Dispose(bool disposing)83 {84 logger.Info($"{this.Name}: Disposing PuppeteerBrowser Instance");85 if (!disposedValue)86 {87 if (disposing)88 {89 // TODO: dispose managed state (managed objects).90 }91 logger.Debug($"{this.Name}: Closing PuppeteerBrowser");92 this.browser.CloseAsync().Wait();93 logger.Debug($"{this.Name}: Closed PuppeteerBrowser");94 // TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.95 // TODO: set large fields to null.96 disposedValue = true;97 }98 }99 // TODO: override a finalizer only if Dispose(bool disposing) above has code to free unmanaged resources.100 ~PuppeteerBrowser()101 {102 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.103 Dispose(false);104 }105 // This code added to correctly implement the disposable pattern.106 public void Dispose()107 {108 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.109 Dispose(true);110 // TODO: uncomment the following line if the finalizer is overridden above.111 GC.SuppressFinalize(this);112 }113 #endregion114 }115}...
Crawler.cs
Source:Crawler.cs
...66 if (response?.Ok ?? false)67 doc.LoadHtml(await page.GetContentAsync());68 else69 {70 this.Dispose();71 Exceptions.BadOrNoResponseException badResponseException;72 if (response == null)73 badResponseException = new("There is no response from server. Please check your connection.");74 else 75 badResponseException = new(response.StatusText);76 throw badResponseException;77 }78 await ResolvePlaces(token);79 }80 private Task ResolvePlaces(CancellationToken token)81 {82 while(true && !token.IsCancellationRequested)83 {84 if (isFirstPage)85 {86 var match = Regex.Match(page.Url, _UrlRegex);87 var lat = match.Groups["lat"].Value;88 var lon = match.Groups["lon"].Value;89 if (double.TryParse(lat, out var tempLat) && double.TryParse(lon, out var tempLon))90 {91 sourceLat = tempLat;92 sourceLon = tempLon;93 }94 isFirstPage = false;95 }96 var names = doc.DocumentNode.SelectNodes("//h3[contains(@class, 'section-result-title')]");97 var results = doc.DocumentNode.SelectNodes("//*[@id='pane']/div/div[1]/div/div/div[4]/div[1]/div[contains(@class, 'section-result')]");98 for (var i = 0; i < results.Count; i++)99 {100 }101 }102 if(token.IsCancellationRequested)103 Dispose();104 return Task.CompletedTask;105 }106#pragma warning disable CA1816 // Dispose methods should call SuppressFinalize107 public void Dispose()108#pragma warning restore CA1816 // Dispose methods should call SuppressFinalize109 {110 browser.Dispose();111 }112}...
Program.cs
Source:Program.cs
...50 }51 finally52 {53 if(browser != null)54 await browser.DisposeAsync();55 if (AppConfig.ol != null)56 {57 AppConfig.ol.Close();58 AppConfig.ol.Dispose();59 }60 }61 }62 }63}...
BrowserService.cs
Source:BrowserService.cs
...25 Console.WriteLine("ERROR: reCAPTCHA");26 }27 public async Task<string> GetHtml()28 => await _currentPage.GetContentAsync();29 public void Dispose() 30 => _browser?.Dispose();31 }32}...
PuppeteerDocumentGenerator.cs
Source:PuppeteerDocumentGenerator.cs
...26 Top = "1.5cm",27 Bottom = "1.5cm"28 },29 });30 browser.Dispose();31 return pdfData;32 }33 }34 }35}...
Dispose
Using AI Code Generation
1using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))2{3 var page = await browser.NewPageAsync();4 await page.ScreenshotAsync("google.png");5}6var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });7var page = await browser.NewPageAsync();8await page.ScreenshotAsync("google.png");9await browser.CloseAsync();10using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))11{12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync("google.png");14}15var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });16var page = await browser.NewPageAsync();17await page.ScreenshotAsync("google.png");18await browser.CloseAsync();
Dispose
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 static async Task Main(string[] args)6 {7 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);8 using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))9 using (var page = await browser.NewPageAsync())10 {11 Console.WriteLine("Page title: {0}", await page.GetTitleAsync());12 }13 }14}
Dispose
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 static async Task Main(string[] args)6 {7 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });9 var page = await browser.NewPageAsync();10 Console.WriteLine("Page loaded successfully");11 await page.WaitForSelectorAsync("input[name='q']");12 await page.TypeAsync("input[name='q']", "Hello World!");13 await page.ClickAsync("input[value='Google Search']");14 await page.WaitForNavigationAsync();15 Console.WriteLine("Page loaded successfully");16 await page.CloseAsync();17 await browser.CloseAsync();18 }19}20using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24 static async Task Main(string[] args)25 {26 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);27 using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))28 {29 var page = await browser.NewPageAsync();30 Console.WriteLine("Page loaded successfully");31 await page.WaitForSelectorAsync("input[name='q']");32 await page.TypeAsync("input[name='q']", "Hello World!");33 await page.ClickAsync("input[value='Google Search']");34 await page.WaitForNavigationAsync();35 Console.WriteLine("Page loaded successfully");36 }37 }38}39using System;40using System.Threading.Tasks;41using PuppeteerSharp;42{43 static async Task Main(string[] args)44 {45 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);46 using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))47 {48 using (var page = await browser.NewPageAsync())49 {50 Console.WriteLine("Page loaded successfully");51 await page.WaitForSelectorAsync("input[name='q']");52 await page.TypeAsync("input[name
Dispose
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 Args = new string[] { "--no-sandbox" }11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync("google.png");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 var browser = await Puppeteer.LaunchAsync(new LaunchOptions26 {27 Args = new string[] { "--no-sandbox" }28 });29 var page = await browser.NewPageAsync();30 await page.ScreenshotAsync("google.png");31 await browser.DisposeAsync();32 }33 }34}35using System;36using System.Threading.Tasks;37using PuppeteerSharp;38{39 {40 static async Task Main(string[] args)41 {42 var browser = await Puppeteer.LaunchAsync(new LaunchOptions43 {44 Args = new string[] { "--no-sandbox" }45 });46 var page = await browser.NewPageAsync();47 await page.ScreenshotAsync("google.png");48 browser.Dispose();49 }50 }51}
Dispose
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 page.Dispose();13 await browser.CloseAsync();14 }15 }16}17page.CloseAsync();18await browser.CloseAsync();19page.Dispose();20await browser.CloseAsync();
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Most used method in Page
- FrameManagerGetFrames
- workersValuesToArray
- PopupGetInvocationList
- clientDisconnected
- SetGeolocationAsync
- SetDragInterceptionAsync
- MetricsAsync
- TapAsync
- QuerySelectorAsync
- QuerySelectorAllAsync
- QuerySelectorAllHandleAsync
- XPathAsync
- EvaluateExpressionHandleAsync
- EvaluateFunctionHandleAsync
- EvaluateOnNewDocumentAsync
- EvaluateFunctionOnNewDocumentAsync
- EvaluateExpressionOnNewDocumentAsync
- QueryObjectsAsync
- SetRequestInterceptionAsync
- SetOfflineModeAsync
- EmulateNetworkConditionsAsync
- GetCookiesAsync
- SetCookieAsync
- DeleteCookieAsync
- AddScriptTagAsync
- AddStyleTagAsync
- ExposeFunctionAsync
- TResult
- GetContentAsync
- SetContentAsync
- GoToAsync
- PdfAsync
- PdfStreamAsync
- PdfDataAsync
- SetJavaScriptEnabledAsync
- SetBypassCSPAsync
- EmulateMediaAsync
- EmulateMediaTypeAsync
- EmulateMediaFeaturesAsync
- SetViewportAsync
- EmulateAsync
- ScreenshotAsync
- ScreenshotStreamAsync
- ScreenshotBase64Async
- ScreenshotDataAsync
- GetTitleAsync
- CloseAsync
- SetCacheEnabledAsync
- ClickAsync
- HoverAsync
- FocusAsync
- TypeAsync
- EvaluateExpressionAsync
- EvaluateFunctionAsync
- SetUserAgentAsync
- SetExtraHttpHeadersAsync
- AuthenticateAsync
- ReloadAsync
- SelectAsync
- WaitForTimeoutAsync
- WaitForFunctionAsync
- WaitForExpressionAsync
- WaitForSelectorAsync
- WaitForXPathAsync
- WaitForNavigationAsync
- WaitForNetworkIdleAsync
- Evaluate
- requestEventListener
- responseEventListener
- Cleanup
- WaitForRequestAsync
- WaitForResponseAsync
- WaitForFileChooserAsync
- GoBackAsync
- GoForwardAsync
- SetBurstModeOffAsync
- BringToFrontAsync
- EmulateVisionDeficiencyAsync
- EmulateTimezoneAsync
- EmulateIdleStateAsync
- EmulateCPUThrottlingAsync
- OnPopup
- InitializeAsync
- GoAsync
- ClientMessageReceived
- OnDetachedFromTarget
- OnTargetCrashed
- EmitMetrics
- HandleException
- OnDialog
- Dispose
- DisposeAsync
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