How to use WaitForFileChooserOptions class of PuppeteerSharp package

Best Puppeteer-sharp code snippet using PuppeteerSharp.WaitForFileChooserOptions

Page.cs

Source:Page.cs

...1718        /// This must be called *before* the file chooser is launched. It will not return a currently active file chooser.1719        /// </example>1720        /// <param name="options">Optional waiting parameters.</param>1721        /// <returns>A task that resolves after a page requests a file picker.</returns>1722        public async Task<FileChooser> WaitForFileChooserAsync(WaitForFileChooserOptions options = null)1723        {1724            if (!_fileChooserInterceptors.Any())1725            {1726                await Client.SendAsync("Page.setInterceptFileChooserDialog", new PageSetInterceptFileChooserDialog1727                {1728                    Enabled = true1729                }).ConfigureAwait(false);1730            }1731            var timeout = options?.Timeout ?? _timeoutSettings.Timeout;1732            var tcs = new TaskCompletionSource<FileChooser>(TaskCreationOptions.RunContinuationsAsynchronously);1733            var guid = Guid.NewGuid();1734            _fileChooserInterceptors.TryAdd(guid, tcs);1735            try1736            {...

PageWaitForFileChooserTests.cs

Source:PageWaitForFileChooserTests.cs

...37        }38        [Fact]39        public async Task ShouldRespectTimeout()40        {41            var ex = await Assert.ThrowsAsync<TimeoutException>(() => Page.WaitForFileChooserAsync(new WaitForFileChooserOptions42            {43                Timeout = 144            }));45        }46        [Fact]47        public async Task ShouldRespectTimeoutWhenThereIsNoCustomTimeout()48        {49            Page.DefaultTimeout = 1;50            var ex = await Assert.ThrowsAsync<TimeoutException>(() => Page.WaitForFileChooserAsync());51        }52        [Fact]53        public async Task ShouldPrioritizeExactTimeoutOverDefaultTimeout()54        {55            Page.DefaultTimeout = 0;56            var ex = await Assert.ThrowsAsync<TimeoutException>(() => Page.WaitForFileChooserAsync(new WaitForFileChooserOptions57            {58                Timeout = 159            }));60        }61        [Fact]62        public async Task ShouldWorkWithNoTimeout()63        {64            var waitForTask = Page.WaitForFileChooserAsync(new WaitForFileChooserOptions { Timeout = 0 });65            await Task.WhenAll(66                waitForTask,67                Page.EvaluateFunctionAsync(@"() => setTimeout(() =>68                {69                    const el = document.createElement('input');70                    el.type = 'file';71                    el.click();72                }, 50)"));73            Assert.NotNull(waitForTask.Result);74        }75        [Fact]76        public async Task ShouldReturnTheSameFileChooserWhenThereAreManyWatchdogsSimultaneously()77        {78            await Page.SetContentAsync("<input type=file>");...

FileChooser.cs

Source:FileChooser.cs

...5using PuppeteerSharp.Messaging;6namespace PuppeteerSharp7{8    /// <summary>9    /// <see cref="FileChooser"/> objects are returned via the <seealso cref="Page.WaitForFileChooserAsync(WaitForFileChooserOptions)"/> method.10    /// File choosers let you react to the page requesting for a file.11    /// </summary>12    /// <example>13    /// <code>14    /// <![CDATA[15    /// var waitTask = page.WaitForFileChooserAsync();16    /// await Task.WhenAll(17    ///     waitTask,18    ///     page.ClickAsync("#upload-file-button")); // some button that triggers file selection19    /// 20    /// await waitTask.Result.AcceptAsync('/tmp/myfile.pdf');21    /// ]]>22    /// </code>23    /// </example>...

WaitForFileChooserOptions.cs

Source:WaitForFileChooserOptions.cs

2{3    /// <summary>4    /// Optional waiting parameters.5    /// </summary>6    /// <seealso cref="Page.WaitForFileChooserAsync(WaitForFileChooserOptions)"/>7    public class WaitForFileChooserOptions8    {9        /// <summary>10        /// Maximum time to wait for in milliseconds. Defaults to 30000 (30 seconds). Pass 0 to disable timeout.11        /// The default value can be changed by setting the <see cref="Page.DefaultTimeout"/> property.12        /// </summary>13        public int Timeout { get; set; } = Puppeteer.DefaultTimeout;14    }...

WaitForFileChooserOptions

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 options = new LaunchOptions { Headless = false };10            using (var browser = await Puppeteer.LaunchAsync(options))11            using (var page = await browser.NewPageAsync())12            {13                await page.SwitchToFrameAsync("iframeResult");14                var fileChooser = await page.WaitForFileChooserAsync(new WaitForFileChooserOptions { Timeout = 10000 });15                await fileChooser.SetFilesAsync(@"C:\Users\user\Downloads\test.txt");16            }17        }18    }19}20using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24    {25        static async Task Main(string[] args)26        {27            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);28            var options = new LaunchOptions { Headless = false };29            using (var browser = await Puppeteer.LaunchAsync(options))30            using (var page = await browser.NewPageAsync())31            {32                await page.SwitchToFrameAsync("iframeResult");33                var fileChooser = await page.WaitForFileChooserAsync(new WaitForFileChooserOptions { Timeout = 10000 });34                await fileChooser.SetFilesAsync(@"C:\Users\user\Downloads\test.txt");35            }36        }37    }38}39using System;40using System.Threading.Tasks;41using PuppeteerSharp;42{43    {44        static async Task Main(string[] args)45        {46            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);47            var options = new LaunchOptions { Headless = false };48            using (var browser = await Puppeteer.LaunchAsync(options))49            using (var page = await browser.NewPageAsync())50            {51                await page.GoToAsync("

WaitForFileChooserOptions

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp;7{8    {9        static void Main(string[] args)10        {11            MainAsync().GetAwaiter().GetResult();12        }13        static async Task MainAsync()14        {15            {16            };17            using (var browser = await Puppeteer.LaunchAsync(options))18            using (var page = await browser.NewPageAsync())19            {20                await page.ClickAsync("input[type=\"file\"]");21                var fileChooser = await page.WaitForFileChooserAsync(new WaitForFileChooserOptions { Timeout = 10000 });22                await fileChooser.SetFilesAsync(@"C:\Users\gaurav\Desktop\test1.txt");23                await page.ScreenshotAsync("C:\\Users\\gaurav\\Desktop\\test.png");24            }25        }26    }27}

WaitForFileChooserOptions

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync().GetAwaiter().GetResult();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            await page.ScreenshotAsync("w3schools.png");18            await page.SwitchToFrameAsync("iframeResult");19            await page.ClickAsync("#myFile");20            await page.WaitForFileChooserAsync(new WaitForFileChooserOptions21            {22            });23            await page.ScreenshotAsync("fileChooser.png");24        }25    }26}27using System;28using System.Threading.Tasks;29using PuppeteerSharp;30{31    {32        static void Main(string[] args)33        {34            MainAsync().GetAwaiter().GetResult();35        }36        static async Task MainAsync()37        {38            var browser = await Puppeteer.LaunchAsync(new LaunchOptions39            {40                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"41            });42            var page = await browser.NewPageAsync();43            await page.ScreenshotAsync("w3schools.png");44            await page.SwitchToFrameAsync("iframeResult");45            await page.ClickAsync("#myFile");46            var fileChooser = await page.WaitForFileChooserAsync(new WaitForFileChooserOptions47            {48            });49            await fileChooser.SetFilesAsync("C:\\Users\\user\\Desktop\\test.txt");50            await page.ScreenshotAsync("fileChooser.png");51        }52    }53}54using System;

WaitForFileChooserOptions

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            {9                Args = new string[] { "--disable-notifications" }10            };11            using (var browser = await Puppeteer.LaunchAsync(options))12            using (var page = await browser.NewPageAsync())13            {14                await page.SwitchToFrameAsync("iframeResult");15                var fileInput = await page.QuerySelectorAsync("input[type=file]");16                var fileChooser = await page.WaitForFileChooserAsync(new WaitForFileChooserOptions17                {18                });19                await fileChooser.SetFilesAsync(@"C:\Users\user\Desktop\1.jpg");20            }21        }22    }23}24Thanks for your reply. I am using the latest version of PuppeteerSharp (2.0.4) and I am getting the same error. I have tried using the WaitForFileChooserAsync method, but I am getting the same error. I am using the following code to upload a file:25await page.WaitForFileChooserAsync(new WaitForFileChooserOptions26                {27                });28Sample Project: 2.zip (8.6 MB)29await page.WaitForFileChooserAsync(new WaitForFileChooserOptions30                {31                });

WaitForFileChooserOptions

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        public WaitForFileChooserOptions()7        {8            IsMultiple = false;9            Timeout = 30000;10        }11        public bool IsMultiple { get; set; }12        public int Timeout { get; set; }13    }14}15using System;16using System.Threading.Tasks;17using PuppeteerSharp;18{19    {20        public async Task<FileChooser> WaitForFileChooserAsync(WaitForFileChooserOptions options = null)21        {22            options = options ?? new WaitForFileChooserOptions();23            var waiter = new Waiter<FileChooser>();24            await WaitForEventAsync(PageEvent.FileChooser, (FileChooser f) => waiter.Complete(f), options).ConfigureAwait(false);25            return await waiter.Task.ConfigureAwait(false);26        }27    }28}29using System;30using System.Threading.Tasks;31using PuppeteerSharp;32{33    {34        public async Task<FileChooser> WaitForFileChooserAsync(WaitForFileChooserOptions options = null)35        {36            options = options ?? new WaitForFileChooserOptions();37            var waiter = new Waiter<FileChooser>();38            await WaitForEventAsync(FrameEvent.FileChooser, (FileChooser f) => waiter.Complete(f), options).ConfigureAwait(false);39            return await waiter.Task.ConfigureAwait(false);40        }41    }42}43using System;44using System.Threading.Tasks;45using PuppeteerSharp;46{47    {48        public async Task<FileChooser> WaitForFileChooserAsync(WaitForFileChooserOptions options = null)49        {50            options = options ?? new WaitForFileChooserOptions();51            var waiter = new Waiter<FileChooser>();52            await WaitForEventAsync(ElementHandleEvent.FileChooser, (FileChooser f) => waiter.Complete(f), options).ConfigureAwait(false);53            return await waiter.Task.ConfigureAwait(false);54        }55    }56}57using System;

WaitForFileChooserOptions

Using AI Code Generation

1var options = new WaitForFileChooserOptions { };2options.Accept = new[] { ".csv" };3options.IgnoreDefaultArgs = true;4var fileChooser = await page.WaitForFileChooserAsync(options);5var options = new WaitForFileChooserOptions { };6options.Accept = new[] { ".csv" };7options.IgnoreDefaultArgs = true;8var fileChooser = await page.WaitForFileChooserAsync(options);9var options = new WaitForFileChooserOptions { };10options.Accept = new[] { ".csv" };11options.IgnoreDefaultArgs = true;12var fileChooser = await page.WaitForFileChooserAsync(options);13var options = new WaitForFileChooserOptions { };14options.Accept = new[] { ".csv" };15options.IgnoreDefaultArgs = true;16var fileChooser = await page.WaitForFileChooserAsync(options);17var options = new WaitForFileChooserOptions { };18options.Accept = new[] { ".csv" };19options.IgnoreDefaultArgs = true;20var fileChooser = await page.WaitForFileChooserAsync(options);21var options = new WaitForFileChooserOptions { };22options.Accept = new[] { ".csv" };23options.IgnoreDefaultArgs = true;24var fileChooser = await page.WaitForFileChooserAsync(options);25var options = new WaitForFileChooserOptions { };26options.Accept = new[] { ".csv" };27options.IgnoreDefaultArgs = true;28var fileChooser = await page.WaitForFileChooserAsync(options);29var options = new WaitForFileChooserOptions { };30options.Accept = new[] { ".csv" };31options.IgnoreDefaultArgs = true;32var fileChooser = await page.WaitForFileChooserAsync(options);33var options = new WaitForFileChooserOptions { };34options.Accept = new[] { ".csv" };35options.IgnoreDefaultArgs = true;

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