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How to use PressAsync method of PuppeteerSharp.ElementHandle class

Best Puppeteer-sharp code snippet using PuppeteerSharp.ElementHandle.PressAsync

ElementHandle.cs

Source:ElementHandle.cs

...198        /// </summary>199        /// <param name="text">A text to type into a focused element</param>200        /// <param name="options">type options</param>201        /// <remarks>202        /// To press a special key, like <c>Control</c> or <c>ArrowDown</c> use <see cref="ElementHandle.PressAsync(string, PressOptions)"/>203        /// </remarks>204        /// <example>205        /// <code>206        /// elementHandle.TypeAsync("#mytextarea", "Hello"); // Types instantly207        /// elementHandle.TypeAsync("#mytextarea", "World", new TypeOptions { Delay = 100 }); // Types slower, like a user208        /// </code>209        /// An example of typing into a text field and then submitting the form:210        /// <code>211        /// var elementHandle = await page.GetElementAsync("input");212        /// await elementHandle.TypeAsync("some text");213        /// await elementHandle.PressAsync("Enter");214        /// </code>215        /// </example>216        /// <returns>Task</returns>217        public async Task TypeAsync(string text, TypeOptions options = null)218        {219            await FocusAsync().ConfigureAwait(false);220            await Page.Keyboard.TypeAsync(text, options).ConfigureAwait(false);221        }222        /// <summary>223        /// Focuses the element, and then uses <see cref="Keyboard.DownAsync(string, DownOptions)"/> and <see cref="Keyboard.UpAsync(string)"/>.224        /// </summary>225        /// <param name="key">Name of key to press, such as <c>ArrowLeft</c>. See <see cref="KeyDefinitions"/> for a list of all key names.</param>226        /// <param name="options">press options</param>227        /// <remarks>228        /// If <c>key</c> is a single character and no modifier keys besides <c>Shift</c> are being held down, a <c>keypress</c>/<c>input</c> event will also be generated. The <see cref="DownOptions.Text"/> option can be specified to force an input event to be generated.229        /// </remarks>230        /// <returns></returns>231        public async Task PressAsync(string key, PressOptions options = null)232        {233            await FocusAsync().ConfigureAwait(false);234            await Page.Keyboard.PressAsync(key, options).ConfigureAwait(false);235        }236        /// <summary>237        /// The method runs <c>element.querySelector</c> within the page. If no element matches the selector, the return value resolve to <c>null</c>.238        /// </summary>239        /// <param name="selector">A selector to query element for</param>240        /// <returns>Task which resolves to <see cref="ElementHandle"/> pointing to the frame element</returns>241        public async Task<ElementHandle> QuerySelectorAsync(string selector)242        {243            var handle = await ExecutionContext.EvaluateFunctionHandleAsync(244                "(element, selector) => element.querySelector(selector)",245                this, selector).ConfigureAwait(false);246            if (handle is ElementHandle element)247            {248                return element;...

VkBrwUserFactory.cs

Source:VkBrwUserFactory.cs

...83                                        if (pagesVisibleElements.Length < pagesTotalCount)84                                        {85                                            PressOptions pressOptions = new PressOptions { Delay = new Random().Next(20, 40)};86                                            await userPage.FocusAsync("input");87                                            await userPage.Keyboard.PressAsync("Tab", pressOptions);88                                            int visiblePagesCounter = pagesVisibleElements.Length;89                                            while (visiblePagesCounter < pagesTotalCount)90                                            {91                                                await userPage.Keyboard.PressAsync("PageDown", pressOptions);92                                                await Task.Delay(new Random().Next(250, 350));93                                                await userPage.Keyboard.PressAsync("PageDown", pressOptions);94                                                await Task.Delay(new Random().Next(250, 350));95                                                await userPage.Keyboard.PressAsync("PageDown", pressOptions);96                                                await Task.Delay(new Random().Next(250, 350));97                                                await userPage.Keyboard.PressAsync("PageDown", pressOptions);98                                                await Task.Delay(new Random().Next(250, 350));99                                                ElementHandle[] newPagesVisibleElements = await userPage.QuerySelectorAllAsync("div.fans_idol_row.inl_bl");100                                                if (newPagesVisibleElements.Length == visiblePagesCounter)101                                                {102                                                    break;103                                                }104                                                visiblePagesCounter = newPagesVisibleElements.Length;105                                            }106                                        }107                                        ElementHandle[] nwPagesElements = await userPage.QuerySelectorAllAsync("div.fans_idol_info");108                                        foreach (var element in nwPagesElements)109                                        {110                                            VkBrwCommunity community = await GetCommunityAsync(element, userContext);111                                            if (community != null)...

PuppeteerExtensions.cs

Source:PuppeteerExtensions.cs

...195            while (true)196            {197                await page.FocusAsync(selector);198                await page.Keyboard.DownAsync("Control");199                await page.Keyboard.PressAsync("A");200                await page.Keyboard.UpAsync("Control");201                await page.Keyboard.PressAsync("Backspace");202                await page.Keyboard.TypeAsync(text, options);203                element = await page.QuerySelectorAsync(selector);204                if (element != null)205                {206                    var value = await page.GetValueAsync(selector);207                    if (value != text)208                        continue;209                }210                return;211            }212        }213        /// <summary>214        /// Waits for a selector to hide215        /// </summary>...

Program.cs

Source:Program.cs

...37            await TypeFieldValue(page, userNameSelector, faceBookEmail, delay);38            //password39            var passwordSelector = "#pass";40            await TypeFieldValue(page, passwordSelector, faceBookPassword, delay);41            await page.Keyboard.PressAsync("Tab");42            await page.Keyboard.PressAsync("Enter");43            //var SearchInputSelector = "label.rq0escxv.a8c37x1j.a5nuqjux.l9j0dhe7.k4urcfbm input";44            //await page.WaitForSelectorAsync(SearchInputSelector);45            //await TypeFieldValueSearch(page, SearchInputSelector, "JavaScript, React, and Node.js", delay);46            //await page.ClickAsync("div.oajrlxb2.gs1a9yip");47            //await page.GoToAsync("https://www.facebook.com/search/top/?q=JavaScript%2C%20React%2C%20and%20Node.js");48            Thread.Sleep(1000);49            await page.GoToAsync("https://www.facebook.com/groups/javascript.react.node/");50            Thread.Sleep(10000);51            Func<Task> scroll = null;52            scroll = new Func<Task>(async () =>53            {54                await page.Keyboard.DownAsync("ArrowDown");55            });56            for (int i = 0; i < 20; i++)57            {58                Thread.Sleep(300);59                Console.WriteLine("scroll");60                await scroll();61            }62            var jscode = @"() => {63                                  const selectors = Array.from(document.querySelectorAll(`div.du4w35lb.k4urcfbm.l9j0dhe7.sjgh65i0`));                                                                                64                                  return selectors.map( t=> {return {content: t.innerHTML}});65                                  }";66            var results = await page.EvaluateFunctionAsync<Content[]>(jscode);67            List<Data> authorNamesAndText = new List<Data>();68            foreach (var result in results)69            {70                Data data = new Data();71                await page.SetContentAsync(result.content);72                Thread.Sleep(500);73                string content = "", content2 = "";74                var elementHandle = await page.QuerySelectorAsync("span.d2edcug0.hpfvmrgz.qv66sw1b.c1et5uql.lr9zc1uh.a8c37x1j.keod5gw0.nxhoafnm.aigsh9s9.d3f4x2em.fe6kdd0r.mau55g9w.c8b282yb.iv3no6db.jq4qci2q.a3bd9o3v.knj5qynh.m9osqain.hzawbc8m");75                if (elementHandle != null)76                {77                    try78                    {79                        content = await elementHandle.QuerySelectorAsync("span").EvaluateFunctionAsync<string>("node => node.innerText");80                    }81                    catch (Exception e1)82                    {83                        Console.WriteLine("error in getting content: " + e1.Message);84                    }85                }86                if (content != "")87                {88                    Thread.Sleep(500);89                    try90                    {91                        content2 = await page.QuerySelectorAsync("div.kvgmc6g5.cxmmr5t8.oygrvhab.hcukyx3x.c1et5uql.ii04i59q").EvaluateFunctionAsync<string>("node => node.innerText");92                    }93                    catch (Exception e2)94                    {95                        Console.WriteLine("error in getting content: " + e2.Message);96                    }97                    data.author = content;98                    data.posttext = content2;99                    authorNamesAndText.Add(data);100                }101            }102            //print author and post list103            foreach (Data ap in authorNamesAndText)104            {105                Console.WriteLine("Author: " + ap.author);106                Console.WriteLine("Post: " + ap.posttext);107            }108            await browser.CloseAsync();109        }110        private static void Page_Response(object sender, ResponseCreatedEventArgs e)111        {112            Console.WriteLine(e.Response.Status);113        }114        private static void Page_Request(object sender, RequestEventArgs e)115        {116            Console.WriteLine(e.Request.ResourceType.ToString());117            Console.WriteLine(e.Request.Url);118        }119        private static async Task TypeFieldValue(Page page, string fieldSelector, string value, int delay = 0)120        {121            await page.FocusAsync(fieldSelector);122            await page.TypeAsync(fieldSelector, value, new TypeOptions { Delay = delay });123            await page.Keyboard.PressAsync("Tab");124        }125        private static async Task TypeFieldValueSearch(Page page, string fieldSelector, string value, int delay = 0)126        {127            await page.FocusAsync(fieldSelector);128            await page.TypeAsync(fieldSelector, value, new TypeOptions { Delay = delay });129        }130    }131    public class Data132    {133        public string author { get; set; }134        public string posttext { get; set; }135    }136    public class Content137    {...

HunterSearch.cs

Source:HunterSearch.cs

...31                    {32                        await page.GoToAsync($"https://hunter.ddosecrets.com/search", navigationOptions);33                        //await page.WaitForNavigationAsync(navigationOptions);34                        await page.TypeAsync("#search-box", query, new TypeOptions { Delay = 50 });35                        await page.Keyboard.PressAsync($"{nameof(Key.Enter)}");36                        //await page.WaitForTimeoutAsync(5000);37                        var contentSelector = "a.EntityLink";38                        await page.WaitForSelectorAsync(contentSelector);39                        var elementHandles = await page.QuerySelectorAllAsync(contentSelector);40                        var elementCount = elementHandles.Length;41                        await page.ClickAsync("main.ContentPane");42                        var elementCountPrev = 0;43                        while (elementCount > elementCountPrev)44                        {45                            elementCountPrev = elementCount;46                            await page.Keyboard.DownAsync($"{nameof(Key.Control)}");47                            await page.Keyboard.PressAsync($"{nameof(Key.End)}");48                            await page.Keyboard.UpAsync($"{nameof(Key.Control)}");49                            await page.WaitForTimeoutAsync(1500);50                            elementHandles = await page.QuerySelectorAllAsync(contentSelector);51                            elementCount = elementHandles.Length;52                        }53                        Report($"query:{query} - found {elementCount} links");54                        var downloadLinks = new List<string>(elementCount);55                        foreach (var item in elementHandles)56                        {57                            var text = (await (await item.GetPropertyAsync("href")).JsonValueAsync()).ToString();58                            downloadLinks.Add(text);59                        }60                        navigationOptions = new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.DOMContentLoaded } };61                        foreach (var link in downloadLinks)...

PuppeteerSharpRepoSpecs.cs

Source:PuppeteerSharpRepoSpecs.cs

...26                page.QuerySelectorAsync("h1").ShouldHaveContent("Where the world builds software");27                ElementHandle input = page.QuerySelectorAsync("input.header-search-input").Await();28                if (input.IsHidden()) page.ClickAsync(".octicon-three-bars").Await();29                page.TypeAsync("input.header-search-input", "Puppeteer Sharp").Await();30                page.Keyboard.PressAsync("Enter").Await();31                page.WaitForNavigationAsync().Await();32                ElementHandle[] repositories = page.QuerySelectorAllAsync(".repo-list-item").Await();33                repositories.Length.ShouldBeGreaterThan(0);34                var repository = repositories.First();35                repository.ShouldHaveContent("hardkoded/puppeteer-sharp");36                ElementHandle text = repository.QuerySelectorAsync("p").Await();37                text.ShouldHaveContent("Headless Chrome .NET API");38                ElementHandle link = repository.QuerySelectorAsync("a").Await();39                link.ClickAsync().Await();40                page.WaitForNavigationAsync().Await();41                page.QuerySelectorAsync("article > h1").ShouldHaveContent("Puppeteer Sharp");42                page.Url.ShouldEqual("https://github.com/hardkoded/puppeteer-sharp");43            };44        }...

PageObjects.cs

Source:PageObjects.cs

...19        {20            var input = await SearchInput;21            if (await input.IsHiddenAsync()) await Page.ClickAsync(".octicon-three-bars");22            await input.TypeAsync(text);23            await input.PressAsync(Key.Enter);24            return await Page.WaitForNavigationAsync<GitHubSearchPage>();25        }26    }27    public class GitHubSearchPage : PageObject28    {29        [Selector(".repo-list-item")]30        public virtual Task<GitHubRepoListItem[]> RepoListItems { get; }31    }32    public class GitHubRepoListItem : ElementObject33    {34        [Selector("a")]35        public virtual Task<ElementHandle> Link { get; }36        [Selector("p")]37        public virtual Task<ElementHandle> Text { get; }...

PressOptions.cs

Source:PressOptions.cs

2{3    /// <summary>4    /// options to use when pressing a key.5    /// </summary>6    /// <seealso cref="Keyboard.PressAsync(string, PressOptions)"/>7    /// <seealso cref="ElementHandle.PressAsync(string, PressOptions)"/>8    public class PressOptions : DownOptions9    {10        /// <summary>11        /// Time to wait between <c>keydown</c> and <c>keyup</c> in milliseconds. Defaults to 0.12        /// </summary>13        public int? Delay { get; set; }14    }...

PressAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))10            using (var page = await browser.NewPageAsync())11            {12                var searchInput = await page.QuerySelectorAsync("input[name=q]");13                await searchInput.FocusAsync();14                await searchInput.PressAsync("a");15                await searchInput.PressAsync("b");16                await searchInput.PressAsync("c");17                await searchInput.PressAsync("Enter");18                await page.WaitForNavigationAsync();19                Console.WriteLine(page.Url);20            }21        }22    }23}

PressAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            Run().Wait();9        }10        static async Task Run()11        {12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14            });15            var page = await browser.NewPageAsync();16            var searchBox = await page.QuerySelectorAsync("input[name='q']");17            await searchBox.PressAsync("PuppeteerSharp");18            await searchBox.PressAsync("Enter");19            await page.WaitForNavigationAsync();20            await browser.CloseAsync();21        }22    }23}

PressAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var searchBox = await page.QuerySelectorAsync("input[name='q']");3await searchBox.TypeAsync("puppeteer-sharp");4var button = await page.QuerySelectorAsync("input[name='btnK']");5await button.PressAsync("Enter");6await page.WaitForNavigationAsync();7var page = await browser.NewPageAsync();8await page.Keyboard.PressAsync("puppeteer-sharp");9await page.Keyboard.PressAsync("Enter");10await page.WaitForNavigationAsync();11protected void Button1_Click(object sender, EventArgs e)12{13    var page = await browser.NewPageAsync();14    await page.Keyboard.PressAsync("puppeteer-sharp");15    await page.Keyboard.PressAsync("Enter");16    await page.WaitForNavigationAsync();17}18protected void Button1_Click(object sender, EventArgs e)19{20    var page = await browser.NewPageAsync();21    await page.Keyboard.PressAsync("puppeteer-sharp");22    await page.Keyboard.PressAsync("Enter");23    await page.WaitForNavigationAsync();24}

PressAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var searchBox = await page.QuerySelectorAsync("input[name=q]");3await searchBox.TypeAsync("Puppeteer");4await searchBox.PressAsync("Enter");5var page = await browser.NewPageAsync();6await page.TypeAsync("input[name=q]", "Puppeteer");7await page.PressAsync("input[name=q]", "Enter");8var page = await browser.NewPageAsync();9var searchBox = await page.QuerySelectorAsync("input[name=q]");10await searchBox.TypeAsync("Puppeteer");11await searchBox.PressAsync("Enter");12var page = await browser.NewPageAsync();13await page.TypeAsync("input[name=q]", "Puppeteer");14await page.PressAsync("input[name=q]", "Enter");15var page = await browser.NewPageAsync();16var searchBox = await page.QuerySelectorAsync("input[name=q]");17await searchBox.TypeAsync("Puppeteer");18await searchBox.PressAsync("Enter");19var page = await browser.NewPageAsync();20await page.TypeAsync("input[name=q]", "Puppeteer");21await page.PressAsync("input[name=q]", "Enter");22var page = await browser.NewPageAsync();23var searchBox = await page.QuerySelectorAsync("input[name=q]");24await searchBox.TypeAsync("Puppeteer");25await searchBox.PressAsync("Enter");26var page = await browser.NewPageAsync();27await page.GoToAsync("https

PressAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var input = await page.QuerySelectorAsync("input[name=q]");3await input.TypeAsync("puppeteer-sharp");4await input.PressAsync("Enter");5await page.WaitForNavigationAsync();6await page.ScreenshotAsync("google.png");7var page = await browser.NewPageAsync();8var input = await page.QuerySelectorAsync("input[name=q]");9await input.TypeAsync("puppeteer-sharp");10await page.Keyboard.PressAsync("Enter");11await page.WaitForNavigationAsync();12await page.ScreenshotAsync("google.png");

PressAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync().Wait();9        }10        static async Task MainAsync()11        {12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"15            });16            var page = await browser.NewPageAsync();17            var searchButton = await page.QuerySelectorAsync("input[name='btnK']");18            await searchButton.PressAsync("Enter");19            await Task.Delay(5000);20            await browser.CloseAsync();21        }22    }23}24PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)25PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)26PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)27PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)28PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)29PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)30PuppeteerSharp.ElementHandle.PressAsync Method (String, PressOptions)

PressAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var search = await page.QuerySelectorAsync("input[name='q']");3await search.ClickAsync();4await search.PressAsync("Enter");5await page.ScreenshotAsync("search.png");6var page = await browser.NewPageAsync();7var search = await page.QuerySelectorAsync("input[name='q']");8await search.ClickAsync();9await page.PressAsync("Enter");10await page.ScreenshotAsync("search.png");11var page = await browser.NewPageAsync();12var search = await page.QuerySelectorAsync("input[name='q']");13await search.ClickAsync();14await page.MainFrame.PressAsync("Enter");15await page.ScreenshotAsync("search.png");16var page = await browser.NewPageAsync();17var search = await page.QuerySelectorAsync("input[name='q']");18await search.ClickAsync();19await page.PressAsync("Enter");20await page.ScreenshotAsync("search.png");21var page = await browser.NewPageAsync();22var search = await page.QuerySelectorAsync("input[name='q']");23await search.ClickAsync();24await page.MainFrame.PressAsync("Enter");25await page.ScreenshotAsync("search.png");26var page = await browser.NewPageAsync();27var search = await page.QuerySelectorAsync("input[name='q']");28await search.ClickAsync();29await page.MainFrame.PressAsync("Enter");

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