How to use Seek method of Microsoft.Playwright.Core.WritableStream class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.WritableStream.Seek

WritableStream.cs

Source:WritableStream.cs

...50        {51            _stream = stream;52        }53        public override bool CanRead => throw new NotImplementedException();54        public override bool CanSeek => throw new NotImplementedException();55        public override bool CanWrite => true;56        public override long Length => throw new NotImplementedException();57        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }58        public override void Flush() => throw new NotImplementedException();59        public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();60        public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) =>61            throw new NotImplementedException();62        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);63        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();64        public override void SetLength(long value) => throw new NotImplementedException();65        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();66        public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)67        {68            await this._stream.WriteAsync(Convert.ToBase64String(buffer)).ConfigureAwait(false);69        }70    }71}...

Seek

Using AI Code Generation

1using System;2using System.IO;3using System.Threading.Tasks;4using Microsoft.Playwright;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var stream = await response.BodyAsync();15            var fileStream = new FileStream("test.txt", FileMode.Create);16            await stream.SeekAsync(0);17            await stream.CopyToAsync(fileStream);18        }19    }20}

Seek

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await page.ClickAsync("text=Download");12            var download = await page.WaitForEventAsync(PageEvent.Download);13            await download.SaveAsAsync(@"C:\Users\Downloads\file.txt");14        }15    }16}17using Microsoft.Playwright;18using System;19using System.Threading.Tasks;20{21    {22        static async Task Main(string[] args)23        {24            await using var playwright = await Playwright.CreateAsync();25            await using var browser = await playwright.Chromium.LaunchAsync();26            var page = await browser.NewPageAsync();27            await page.ClickAsync("text=Download");28            var download = await page.WaitForEventAsync(PageEvent.Download);29            await download.SaveAsAsync(@"C:\Users\Downloads\file.txt");30            await download.CloseAsync();31        }32    }33}34using Microsoft.Playwright;35using System;36using System.Threading.Tasks;37{38    {39        static async Task Main(string[] args)40        {41            await using var playwright = await Playwright.CreateAsync();42            await using var browser = await playwright.Chromium.LaunchAsync();43            var page = await browser.NewPageAsync();44            await page.ClickAsync("text=Download");45            var download = await page.WaitForEventAsync(PageEvent.Download);46            await download.SaveAsAsync(@"C:\Users\Downloads\file.txt");47            await download.CloseAsync();48            await download.DisposeAsync();49        }50    }51}52using Microsoft.Playwright;53using System;54using System.Threading.Tasks;55{

Seek

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });11            var page = await browser.NewPageAsync();12            var input = await page.QuerySelectorAsync("input[title='Search']");13            await input.TypeAsync("Hello World");14            var stream = new WritableStream();15            await input.FocusAsync();16            await page.Keyboard.DownAsync("Shift");17            await input.PressAsync("ArrowLeft");

Seek

Using AI Code Generation

1{2    {3        static async Task Main(string[] args)4        {5            using var playwright = await Playwright.CreateAsync();6            var browser = await playwright.Chromium.LaunchAsync(headless: false);7            var page = await browser.NewPageAsync();8            await page.SwitchToFrameAsync("iframeResult");9            await page.SetInputFilesAsync("input[type='file']", "C:\\Users\\user\\Desktop\\test.txt");10            await page.ClickAsync("input[type='submit']");11            await page.WaitForSelectorAsync("h2");12            var text = await page.TextContentAsync("h2");13            Console.WriteLine(text);14            await browser.CloseAsync();15        }16    }17}

Seek

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.IO;4using System.Text;5using System.Threading.Tasks;6{7    {8        static async Task Main(string[] args)9        {10            var path = Path.Combine(Directory.GetCurrentDirectory(), "test.txt");11            var file = File.Open(path, FileMode.OpenOrCreate);12            var writer = new StreamWriter(file);13            await writer.WriteLineAsync("Test");14            await writer.FlushAsync();15            file.Seek(0, SeekOrigin.Begin);16            var reader = new StreamReader(file);17            var text = await reader.ReadToEndAsync();18            Console.WriteLine(text);19            await file.CloseAsync();20        }21    }22}

Seek

Using AI Code Generation

1var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();2var page = await browser.NewPageAsync();3var stream = await page.OpenAsync();4await stream.SeekAsync(0, SeekOrigin.Begin);5await stream.CloseAsync();6await browser.CloseAsync();7var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();8var page = await browser.NewPageAsync();9var stream = await page.OpenAsync();10await stream.SetEncodingAsync(Encoding.UTF8);11await stream.CloseAsync();12await browser.CloseAsync();13var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();14var page = await browser.NewPageAsync();15var stream = await page.OpenAsync();16await stream.WriteAsync("Write method");17await stream.CloseAsync();18await browser.CloseAsync();19var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();20var page = await browser.NewPageAsync();21var stream = await page.OpenAsync();22await stream.WriteAsync("WriteAsync method");23await stream.CloseAsync();24await browser.CloseAsync();25var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();26var page = await browser.NewPageAsync();27var stream = await page.OpenAsync();28await stream.WriteLineAsync("WriteLine method");29await stream.CloseAsync();30await browser.CloseAsync();31var browser = await Playwright.CreateAsync().Chromium.LaunchAsync();32var page = await browser.NewPageAsync();33var stream = await page.OpenAsync();34await stream.WriteLineAsync("WriteLineAsync method");35await stream.CloseAsync();

Seek

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var stream = new FileStream("output.txt", FileMode.Create);15            var writableStream = await page.OpenAsync();16            await writableStream.SeekAsync(0);17            await writableStream.WriteAsync("Hello World");18            await writableStream.CloseAsync();19            await browser.CloseAsync();20        }21    }22}23using Microsoft.Playwright;24using System;25using System.IO;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            await using var playwright = await Playwright.CreateAsync();32            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions33            {34            });35            var page = await browser.NewPageAsync();36            var stream = new FileStream("output.txt", FileMode.Create);37            var writableStream = await page.OpenAsync();38            await writableStream.SeekAsync(0);39            await writableStream.WriteAsync("Hello World");40            await writableStream.CloseAsync();41            await browser.CloseAsync();42        }43    }44}45using Microsoft.Playwright;46using System;47using System.IO;48using System.Threading.Tasks;49{50    {51        static async Task Main(string[] args)52        {53            await using var playwright = await Playwright.CreateAsync();54            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions55            {56            });57            var page = await browser.NewPageAsync();

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

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What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
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What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
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