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How to use AddStyleTagAsync method of PuppeteerSharp.Frame class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Frame.AddStyleTagAsync

Page.cs

Source:Page.cs

...387        /// Adds a <c><![CDATA[<link rel="stylesheet">]]></c> tag into the page with the desired url or a <c><![CDATA[<link rel="stylesheet">]]></c> tag with the content388        /// </summary>389        /// <param name="options">add style tag options</param>390        /// <remarks>391        /// Shortcut for <c>page.MainFrame.AddStyleTagAsync(options)</c>392        /// </remarks>393        /// <returns>Task which resolves to the added tag when the stylesheet's onload fires or when the CSS content was injected into frame</returns>394        /// <seealso cref="Frame.AddStyleTag(AddTagOptions)"/>395        public Task<ElementHandle> AddStyleTagAsync(AddTagOptions options) => MainFrame.AddStyleTagAsync(options);396        /// <summary>397        /// Adds a <c><![CDATA[<link rel="stylesheet">]]></c> tag into the page with the desired url or a <c><![CDATA[<link rel="stylesheet">]]></c> tag with the content398        /// </summary>399        /// <param name="url">stylesheel url</param>400        /// <remarks>401        /// Shortcut for <c>page.MainFrame.AddStyleTagAsync(new AddTagOptions { Url = url })</c>402        /// </remarks>403        /// <returns>Task which resolves to the added tag when the stylesheet's onload fires or when the CSS content was injected into frame</returns>404        public Task<ElementHandle> AddStyleTagAsync(string url) => AddStyleTagAsync(new AddTagOptions { Url = url });405        /// <summary>406        /// Adds a function called <c>name</c> on the page's <c>window</c> object.407        /// When called, the function executes <paramref name="puppeteerFunction"/> in C# and returns a <see cref="Task"/> which resolves when <paramref name="puppeteerFunction"/> completes.408        /// </summary>409        /// <param name="name">Name of the function on the window object</param>410        /// <param name="puppeteerFunction">Callback function which will be called in Puppeteer's context.</param>411        /// <remarks>412        /// If the <paramref name="puppeteerFunction"/> returns a <see cref="Task"/>, it will be awaited.413        /// Functions installed via <see cref="ExposeFunctionAsync(string, Action)"/> survive navigations414        /// </remarks>415        /// <returns>Task</returns>416        public Task ExposeFunctionAsync(string name, Action puppeteerFunction)417            => ExposeFunctionAsync(name, (Delegate)puppeteerFunction);418        /// <summary>...

Frame.cs

Source:Frame.cs

...323        /// Adds a <c><![CDATA[<link rel="stylesheet">]]></c> tag into the page with the desired url or a <c><![CDATA[<link rel="stylesheet">]]></c> tag with the content324        /// </summary>325        /// <param name="options">add style tag options</param>326        /// <returns>Task which resolves to the added tag when the stylesheet's onload fires or when the CSS content was injected into frame</returns>327        /// <seealso cref="Page.AddStyleTagAsync(AddTagOptions)"/>328        /// <seealso cref="Page.AddStyleTagAsync(string)"/>329        [Obsolete("Use AddStyleTagAsync instead")]330        public Task<ElementHandle> AddStyleTag(AddTagOptions options) => MainWorld.AddStyleTagAsync(options);331        /// <summary>332        /// Adds a <c><![CDATA[<script>]]></c> tag into the page with the desired url or content333        /// </summary>334        /// <param name="options">add script tag options</param>335        /// <returns>Task which resolves to the added tag when the script's onload fires or when the script content was injected into frame</returns>336        /// <seealso cref="Page.AddScriptTagAsync(AddTagOptions)"/>337        /// <seealso cref="Page.AddScriptTagAsync(string)"/>338        [Obsolete("Use AddScriptTagAsync instead")]339        public Task<ElementHandle> AddScriptTag(AddTagOptions options) => MainWorld.AddScriptTagAsync(options);340        /// <summary>341        /// Adds a <c><![CDATA[<link rel="stylesheet">]]></c> tag into the page with the desired url or a <c><![CDATA[<link rel="stylesheet">]]></c> tag with the content342        /// </summary>343        /// <param name="options">add style tag options</param>344        /// <returns>Task which resolves to the added tag when the stylesheet's onload fires or when the CSS content was injected into frame</returns>345        /// <seealso cref="Page.AddStyleTagAsync(AddTagOptions)"/>346        /// <seealso cref="Page.AddStyleTagAsync(string)"/>347        public Task<ElementHandle> AddStyleTagAsync(AddTagOptions options) => MainWorld.AddStyleTagAsync(options);348        /// <summary>349        /// Adds a <c><![CDATA[<script>]]></c> tag into the page with the desired url or content350        /// </summary>351        /// <param name="options">add script tag options</param>352        /// <returns>Task which resolves to the added tag when the script's onload fires or when the script content was injected into frame</returns>353        /// <seealso cref="Page.AddScriptTagAsync(AddTagOptions)"/>354        /// <seealso cref="Page.AddScriptTagAsync(string)"/>355        public Task<ElementHandle> AddScriptTagAsync(AddTagOptions options) => MainWorld.AddScriptTagAsync(options);356        /// <summary>357        /// Gets the full HTML contents of the page, including the doctype.358        /// </summary>359        /// <returns>Task which resolves to the HTML content.</returns>360        /// <seealso cref="Page.GetContentAsync"/>361        public Task<string> GetContentAsync() => SecondaryWorld.GetContentAsync();...

DOMWorld.cs

Source:DOMWorld.cs

...169                return await AddScriptTagPrivate(addScriptContent, options.Content, options.Type).ConfigureAwait(false);170            }171            throw new ArgumentException("Provide options with a `Url`, `Path` or `Content` property");172        }173        internal async Task<ElementHandle> AddStyleTagAsync(AddTagOptions options)174        {175            const string addStyleUrl = @"async function addStyleUrl(url) {176              const link = document.createElement('link');177              link.rel = 'stylesheet';178              link.href = url;179              const promise = new Promise((res, rej) => {180                link.onload = res;181                link.onerror = rej;182              });183              document.head.appendChild(link);184              await promise;185              return link;186            }";187            const string addStyleContent = @"async function addStyleContent(content) {...

AddTagOptions.cs

Source:AddTagOptions.cs

1ï»¿namespace PuppeteerSharp2{3    /// <summary>4    /// Options used by <see cref="Page.AddScriptTagAsync(AddTagOptions)"/> &amp; <see cref="Page.AddStyleTagAsync(AddTagOptions)"/>5    /// </summary>6    public class AddTagOptions7    {8        /// <summary>9        /// Url of a script to be added10        /// </summary>11        public string Url { get; set; }12        /// <summary>13        /// Path to the JavaScript file to be injected into frame. If its a relative path, then it is resolved relative to <see cref="System.IO.Directory.GetCurrentDirectory"/>14        /// </summary>15        public string Path { get; set; }16        /// <summary>17        /// Raw JavaScript content to be injected into frame18        /// </summary>...

AddStyleTagAsync

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            {11                var page = await browser.NewPageAsync();12            }13        }14    }15}16using System;17using System.Threading.Tasks;18using PuppeteerSharp;19{20    {21        static async Task Main(string[] args)22        {23            var options = new LaunchOptions { Headless = false };24            using (var browser = await Puppeteer.LaunchAsync(options))25            {26                var page = await browser.NewPageAsync();27                await page.AddStyleTagAsync(new AddTagOptions { Content = "body { background-color: red; }" });28            }29        }30    }31}32using System;33using System.Threading.Tasks;34using PuppeteerSharp;35{36    {37        static async Task Main(string[] args)38        {39            var options = new LaunchOptions { Headless = false };40            using (var browser = await Puppeteer.LaunchAsync(options))41            {42                var page = await browser.NewPageAsync();43                await page.AddStyleTagAsync(new AddTagOptions { Path = "C:\\Users\\UserName\\Desktop\\style.css" });44            }45        }46    }47}48using System;49using System.Threading.Tasks;50using PuppeteerSharp;51{52    {53        static async Task Main(string[] args)54        {55            var options = new LaunchOptions { Headless = false };56            using (var browser = await Puppeteer.L

AddStyleTagAsync

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            });15            var page = await browser.NewPageAsync();16            await page.ScreenshotAsync("1.png");17            await browser.CloseAsync();18        }19    }20}

AddStyleTagAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            using (var browser = await Puppeteer.LaunchAsync(options))11            {12                using (var page = await browser.NewPageAsync())13                {14                    await page.ScreenshotAsync("google.png");15                }16            }17        }18    }19}20await page.AddStyleTagAsync(new AddTagOptions { Content = "body { background-color: green; }" });21await page.AddScriptTagAsync(new AddTagOptions { Content = "console.log('hello world');" });22await page.AddStyleTagAsync(new AddTagOptions { Path = "style.css" });23await page.AddScriptTagAsync(new AddTagOptions { Path = "script.js" });24await page.AddStyleTagAsync(new AddTagOptions { Path = "style.css" });25await page.AddScriptTagAsync(new AddTagOptions { Path = "script.js" });

AddStyleTagAsync

Using AI Code Generation

1using PuppeteerSharp;2using System.Threading.Tasks;3{4    {5        public static async Task Main(string[] args)6        {7            var options = new LaunchOptions { Headless = false };8            using (var browser = await Puppeteer.LaunchAsync(options))9            using (var page = await browser.NewPageAsync())10            {11            }12        }13    }14}

AddStyleTagAsync

Using AI Code Generation

1using System.Threading.Tasks;2using PuppeteerSharp;3{4    {5        static async Task Main(string[] args)6        {7            {8            };9            using (var browser = await Puppeteer.LaunchAsync(options))10            {11                using (var page = await browser.NewPageAsync())12                {13                    await page.WaitForTimeoutAsync(10000);14                }15            }16        }17    }18}19public Task<ElementHandle> AddStyleTagAsync(AddTagOptions options = null)20using System.Threading.Tasks;21using PuppeteerSharp;22{23    {24        static async Task Main(string[] args)25        {26            {27            };28            using (var browser = await Puppeteer.LaunchAsync(options))29            {30                using (var page = await browser.NewPageAsync())31                {

AddStyleTagAsync

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                await page.AddStyleTagAsync(new AddTagOptions13                {14                    Content = "body { background-color: red; }"15                });16                Console.ReadLine();17            }18        }19    }20}

AddStyleTagAsync

Using AI Code Generation

1var urls = File.ReadAllLines("urls.txt");2foreach (var url in urls)3{4    var browser = await Puppeteer.LaunchAsync(new LaunchOptions5    {6        Args = new string[] { "--no-sandbox" }7    });8    var page = await browser.NewPageAsync();9    await page.GoToAsync(url);10    var source = await page.GetContentAsync();11    File.WriteAllText(url + ".html", source);12}13Unhandled exception. System.AggregateException: One or more errors occurred. (Unknown error: Cannot find context with specified id)14var button = await page.QuerySelectorAsync("button");15await button.ClickAsync();16var button = await page.QuerySelectorAsync("button");17await button.EvaluateFunctionAsync("button => button.click()");18var button = await page.QuerySelectorAsync("button");19await page.EvaluateFunctionAsync("button => button.click()", button);20var button = await page.QuerySelectorAsync("button");21await page.EvaluateExpressionAsync("button.click()", button);22var button = await page.QuerySelectorAsync("button");23await page.EvaluateExpressionAsync("button.click()");24var button = await page.QuerySelectorAsync("button");25await page.EvaluateExpressionAsync("button.click");

AddStyleTagAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var launcher = new Launcher();9            var revisionInfo = await launcher.GetLatestRevisionInfoAsync();10            var browserFetcher = new BrowserFetcher();

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