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How to use Cancel method of PuppeteerSharp.FileChooser class

Best Puppeteer-sharp code snippet using PuppeteerSharp.FileChooser.Cancel

ScheduleController.cs

Source:ScheduleController.cs

...376                            await page.EvaluateExpressionAsync(ClickButton("Save Info"));377                            System.Threading.Thread.Sleep(500);378                            await PageNavigation(page);379                            System.Threading.Thread.Sleep(5000);380                            await page.EvaluateExpressionAsync(ClickButton("Cancel"));381                            System.Threading.Thread.Sleep(2000);382                            if (schedule.Type.ToLower() == "story")383                            {384                                var html2 = await page.GetContentAsync();385                                if (html2.Contains("Welcome to Instagram"))386                                {387                                    page.EvaluateExpressionAsync(@"document.querySelector(""header button"").click()");388                                    var fileChooser = await page.WaitForFileChooserAsync();389                                    await fileChooser.AcceptAsync(new string[] { HostingEnvironment.MapPath(schedule.ImagePath) });390                                    await PageNavigation(page);391                                }392                                else393                                {394                                    try...

HomeController.cs

Source:HomeController.cs

...79                    await page.EvaluateExpressionAsync(ClickButton("Log In", true));80                    System.Threading.Thread.Sleep(5000);81                    await page.EvaluateExpressionAsync(ClickButton("Save Info"));82                    System.Threading.Thread.Sleep(5000);83                    await page.EvaluateExpressionAsync(ClickButton("Cancel"));84                    System.Threading.Thread.Sleep(5000);85                    //Dont add await for this86                    page.EvaluateExpressionAsync(87                        @"document.querySelector(""div[data-testid=new-post-button]"").click()");88                    var fileChooser = await page.WaitForFileChooserAsync();89                    await fileChooser.AcceptAsync(new string[] { "C:\\Users\\Zawar\\Desktop\\New folder (4)\\cover6.jpg" });90                    System.Threading.Thread.Sleep(5000);91                    await page.EvaluateExpressionAsync(ClickButton("Next"));92                    System.Threading.Thread.Sleep(5000);93                    for (int i = 0; i < 4; i++)94                    {95                        await page.Keyboard.DownAsync(key: "Tab");96                        System.Threading.Thread.Sleep(500);97                    }98                    await page.Keyboard.TypeAsync("Automated caption", new TypeOptions { Delay = 200 });99                    await page.EvaluateExpressionAsync(ClickButton("Share"));100                    System.Threading.Thread.Sleep(1600000);101                }102                catch (Exception ex)103                {104                }105            }106        }107    }108}109//                    string loginBtnScript2 = @"110//var btnList = document.getElementsByTagName(""button""); 111//for (var i = 0; i < btnList.length; i++)112//{113//    console.log(""loop working"");114//    if (btnList[i].innerText == ""Log In"")115//    {116//        btnList[i].disabled = false;117//        btnList[i].click();118//    }119//}120//                    ";121//                    string loginBtnScript3 = @"122//var btnList = document.getElementsByTagName(""button""); 123//for (var i = 0; i < btnList.length; i++)124//{125//    console.log(""loop working"");126//    if (btnList[i].innerText == ""Save Info"")127//    {128//        btnList[i].disabled = false;129//        btnList[i].click();130//    }131//}132//                    ";133//                    string loginBtnScript4 = @"134//var btnList = document.getElementsByTagName(""button""); 135//for (var i = 0; i < btnList.length; i++)136//{137//    console.log(""loop working"");138//    if (btnList[i].innerText == ""Cancel"")139//    {140//        btnList[i].disabled = false;141//        btnList[i].click();142//    }143//}144//                    ";145//                    string loginBtnScript5 = @"146//var btnList = document.getElementsByTagName(""button""); 147//for (var i = 0; i < btnList.length; i++)148//{149//    console.log(""loop working"");150//    if (btnList[i].innerText == ""Next"")151//    {152//        btnList[i].disabled = false;...

FileChooser.cs

Source:FileChooser.cs

...62        /// <summary>63        /// Closes the file chooser without selecting any files.64        /// </summary>65        /// <returns>A task that resolves after the cancel message is processed by the browser</returns>66        public Task CancelAsync()67        {68            if (_handled)69            {70                throw new PuppeteerException("Cannot accept FileChooser which is already handled!");71            }72            _handled = true;73            return _client.SendAsync("Page.handleFileChooser", new PageHandleFileChooserRequest74            {75                Action = FileChooserAction.Cancel76            });77        }78    }79}...

FileChooserCancelTests.cs

Source:FileChooserCancelTests.cs

...5using Xunit.Abstractions;6namespace PuppeteerSharp.Tests.InputTests7{8    [Collection(TestConstants.TestFixtureCollectionName)]9    public class FileChooserCancelTests : PuppeteerPageBaseTest10    {11        public FileChooserCancelTests(ITestOutputHelper output) : base(output)12        {13        }14        [Fact]15        public async Task ShouldCancelDialog()16        {17            // Consider file chooser canceled if we can summon another one.18            // There's no reliable way in WebPlatform to see that FileChooser was19            // canceled.20            await Page.SetContentAsync("<input type=file>");21            var waitForTask = Page.WaitForFileChooserAsync();22            await Task.WhenAll(23                waitForTask,24                Page.ClickAsync("input"));25            var fileChooser = waitForTask.Result;26            await fileChooser.CancelAsync();27            await Task.WhenAll(28                Page.WaitForFileChooserAsync(),29                Page.ClickAsync("input"));30        }31        [Fact]32        public async Task ShouldFailWhenCancelingFileChooserTwice()33        {34            await Page.SetContentAsync("<input type=file>");35            var waitForTask = Page.WaitForFileChooserAsync();36            await Task.WhenAll(37                waitForTask,38                Page.ClickAsync("input"));39            var fileChooser = waitForTask.Result;40            await fileChooser.CancelAsync();41            var ex = await Assert.ThrowsAsync<PuppeteerException>(() => fileChooser.CancelAsync());42            Assert.Equal("Cannot accept FileChooser which is already handled!", ex.Message);43        }44    }45}

Cancel

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });2var page = await browser.NewPageAsync();3await page.SetRequestInterceptionAsync(true);4page.Request += async (sender, e) =>5{6    if (e.Request.ResourceType == ResourceType.Media)7    {8        var fileChooser = await page.WaitForFileChooserAsync();9        await fileChooser.CancelAsync();10    }11    await e.Request.ContinueAsync();12};13var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });14var page = await browser.NewPageAsync();15await page.SetRequestInterceptionAsync(true);16page.Request += async (sender, e) =>17{18    if (e.Request.ResourceType == ResourceType.Media)19    {20        var fileChooser = await page.WaitForFileChooserAsync();21        await fileChooser.AcceptAsync(new string[] { "C:/Users/username/Desktop/puppeteer.png" });22    }23    await e.Request.ContinueAsync();24};25var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });26var page = await browser.NewPageAsync();27await page.SetRequestInterceptionAsync(true);28page.Request += async (sender, e) =>29{30    if (e.Request.ResourceType == ResourceType.Media)31    {32        var fileChooser = await page.WaitForFileChooserAsync();33        await fileChooser.AcceptAsync(new string[] { "C:/Users/username/Desktop/puppeteer.png", "C:/Users/username/Desktop/puppeteer1.png" });34    }35    await e.Request.ContinueAsync();36};37var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });38var page = await browser.NewPageAsync();39await page.SetRequestInterceptionAsync(true);

Cancel

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using (var browser = await Puppeteer.LaunchAsync(options))10            using (var page = await browser.NewPageAsync())11            {12                await page.SetRequestInterceptionAsync(true);13                page.Request += async (sender, e) =>14                {15                    if (e.Request.ResourceType == ResourceType.Media)16                    {17                        await e.Request.AbortAsync();18                    }19                    {20                        await e.Request.ContinueAsync();21                    }22                };23                await page.ClickAsync("input[name='q']");24                await page.Keyboard.TypeAsync("PuppeteerSharp");25                await page.Keyboard.PressAsync("Enter");26                var fileChooser = await page.WaitForFileChooserAsync();27                await fileChooser.CancelAsync();28            }29        }30    }31}

Cancel

Using AI Code Generation

1using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))2{3    var page = await browser.NewPageAsync();4    var frame = page.Frames.FirstOrDefault(f => f.Name == "iframeResult");5    var fileInput = await frame.QuerySelectorAsync("input[type=file]");6    await fileInput.UploadFileAsync("C:\\Users\\Downloads\\1.jpg");7    await Task.Delay(5000);8    var fileChooser = await page.WaitForFileChooserAsync();9    await fileChooser.CancelAsync();10    await Task.Delay(5000);11}12using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))13{14    var page = await browser.NewPageAsync();15    var frame = page.Frames.FirstOrDefault(f => f.Name == "iframeResult");16    var fileInput = await frame.QuerySelectorAsync("input[type=file]");17    await fileInput.UploadFileAsync("C:\\Users\\Downloads\\1.jpg");18    await Task.Delay(5000);19    var fileChooser = await page.WaitForFileChooserAsync();20    await fileChooser.AcceptAsync(new string[] { "C:\\Users\\Downloads\\2.jpg" });21    await Task.Delay(5000);22}23using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))24{25    var page = await browser.NewPageAsync();26    var frame = page.Frames.FirstOrDefault(f => f.Name == "iframeResult");27    var fileInput = await frame.QuerySelectorAsync("input[type=file]");28    await fileInput.UploadFileAsync("C:\\Users\\Downloads\\1.jpg");29    await Task.Delay(5000);30    var fileChooser = await page.WaitForFileChooserAsync();31    await fileChooser.AcceptAsync(new string[] { "C:\\Users\\Downloads\\2.jpg", "C:\\

Cancel

Using AI Code Generation

1var page = await browser.NewPageAsync();2await page.SetRequestInterceptionAsync(true);3page.Request += async (sender, e) =>4{5    if (e.Request.ResourceType == ResourceType.Image)6    {7        await e.Request.AbortAsync();8    }9    {10        await e.Request.ContinueAsync();11    }12};13await page.ClickAsync("input[type='file']");14await page.WaitForFileChooserAsync();15await page.ClickAsync("body");

Cancel

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            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            var fileChooser = await page.WaitForFileChooserAsync();12            await fileChooser.CancelAsync();13            await page.ScreenshotAsync("1.png");14            await browser.CloseAsync();15        }16    }17}

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