Best Puppeteer-sharp code snippet using PuppeteerSharp.PuppeteerHandleExtensions
Page.cs
Source: Page.cs
...441 /// <seealso cref="Frame.QuerySelectorAllAsync(string)"/>442 public Task<ElementHandle[]> QuerySelectorAllAsync(string selector)443 => MainFrame.QuerySelectorAllAsync(selector);444 /// <summary>445 /// A utility function to be used with <see cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>446 /// </summary>447 /// <param name="selector">A selector to query page for</param>448 /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>449 public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)450 => EvaluateFunctionHandleAsync("selector => Array.from(document.querySelectorAll(selector))", selector);451 /// <summary>452 /// Evaluates the XPath expression453 /// </summary>454 /// <param name="expression">Expression to evaluate <see href="https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate"/></param>455 /// <returns>Task which resolves to an array of <see cref="ElementHandle"/></returns>456 /// <remarks>457 /// Shortcut for <c>page.MainFrame.XPathAsync(expression)</c>458 /// </remarks>459 /// <seealso cref="Frame.XPathAsync(string)"/>...
ElementHandle.cs
Source: ElementHandle.cs
...331 await arrayHandle.DisposeAsync().ConfigureAwait(false);332 return properties.Values.OfType<ElementHandle>().ToArray();333 }334 /// <summary>335 /// A utility function to be used with <see cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>336 /// </summary>337 /// <param name="selector">A selector to query element for</param>338 /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>339 public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)340 => ExecutionContext.EvaluateFunctionHandleAsync(341 "(element, selector) => Array.from(element.querySelectorAll(selector))", this, selector);342 /// <summary>343 /// Evaluates the XPath expression relative to the elementHandle. If there's no such element, the method will resolve to <c>null</c>.344 /// </summary>345 /// <param name="expression">Expression to evaluate <see href="https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate"/></param>346 /// <returns>Task which resolves to an array of <see cref="ElementHandle"/></returns>347 public async Task<ElementHandle[]> XPathAsync(string expression)348 {349 var arrayHandle = await ExecutionContext.EvaluateFunctionHandleAsync(...
PuppeteerHandleExtensions.cs
Source: PuppeteerHandleExtensions.cs
...4{5 /// <summary>6 /// <see cref="JSHandle"/> and <see cref="ElementHandle"/> Extensions.7 /// </summary>8 public static class PuppeteerHandleExtensions9 {10 /// <summary>11 /// Runs <paramref name="pageFunction"/> within the frame and passes it the outcome of <paramref name="elementHandleTask"/> as the first argument12 /// </summary>13 /// <param name="elementHandleTask">A task that returns an <see cref="ElementHandle"/> that will be used as the first argument in <paramref name="pageFunction"/></param>14 /// <param name="pageFunction">Function to be evaluated in browser context</param>15 /// <param name="args">Arguments to pass to <c>pageFunction</c></param>16 /// <returns>Task</returns>17 /// <exception cref="SelectorException">If <paramref name="elementHandleTask"/> resolves to <c>null</c></exception>18 public static Task EvaluateFunctionAsync(this Task<ElementHandle> elementHandleTask, string pageFunction, params object[] args)19 => elementHandleTask.EvaluateFunctionAsync<object>(pageFunction, args);20 /// <summary>21 /// Runs <paramref name="pageFunction"/> within the frame and passes it the outcome of <paramref name="elementHandleTask"/> as the first argument22 /// </summary>...
SelectorException.cs
Source: SelectorException.cs
...4{5 /// <summary>6 /// Exception thrown when an element selector returns null.7 /// </summary>8 /// <seealso cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(System.Threading.Tasks.Task{ElementHandle}, string, object[])"/>9 /// <seealso cref="Frame.SelectAsync(string, string[])"/>10 /// <seealso cref="Page.ClickAsync(string, Input.ClickOptions)"/>11 /// <seealso cref="Page.TapAsync(string)"/>12 /// <seealso cref="Page.HoverAsync(string)"/>13 /// <seealso cref="Page.FocusAsync(string)"/>14 /// <seealso cref="Page.SelectAsync(string, string[])"/>15 [Serializable]16 public class SelectorException : PuppeteerException17 {18 /// <summary>19 /// Initializes a new instance of the <see cref="SelectorException"/> class.20 /// </summary>21 public SelectorException()22 {...
PuppeteerHandleExtensions
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 await page.ScreenshotAsync("google.png");12 await browser.CloseAsync();13 }14 }15}16using System;17using System.Threading.Tasks;18using PuppeteerSharp;19{20 {21 static async Task Main(string[] args)22 {23 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);24 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });25 var page = await browser.NewPageAsync();26 await page.ScreenshotAsync("google.png");27 await browser.CloseAsync();28 }29 }30}31using System;32using System.Threading.Tasks;33using PuppeteerSharp;34{35 {36 static async Task Main(string[] args)37 {38 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);39 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });40 var page = await browser.NewPageAsync();41 await page.ScreenshotAsync("google.png");42 await browser.CloseAsync();43 }44 }45}46using System;47using System.Threading.Tasks;48using PuppeteerSharp;49{50 {51 static async Task Main(string[] args)52 {53 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);54 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });55 var page = await browser.NewPageAsync();
PuppeteerHandleExtensions
Using AI Code Generation
1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync("google.png");14 await browser.CloseAsync();15 }16 }17}18I am trying to use the PuppeteerSharp package in my C# project. I am using .Net Core 2.2. I am using the following code to launch the browser and take a screenshot of google.com. I am getting the following error: Error CS0246: The type or namespace name 'PuppeteerSharp' could not be found (are you missing a using directive or an assembly reference?)I have installed the package using the following command:Install-Package PuppeteerSharp -Version 1.18.0I have also tried installing the package using the NuGet Package Manager in Visual Studio 2017. I am getting the same error. What am I doing wrong?I am using Windows 10. I am using the following code to launch the browser and take a screenshot of google.com:
PuppeteerHandleExtensions
Using AI Code Generation
1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp;5{6 {7 static async Task Main(string[] args)8 {9 var browser = await Puppeteer.LaunchAsync(new LaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync(Path.Combine(Directory.GetCurrentDirectory(), "google.png"));14 await browser.CloseAsync();15 }16 }17}
PuppeteerHandleExtensions
Using AI Code Generation
1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4using PuppeteerSharp.Helpers;5{6 {7 public static async Task<string> GetInnerTextAsync(this ElementHandle handle)8 {9 var element = await handle.EvaluateFunctionHandleAsync("e => e", handle);10 var textContent = await element.GetPropertyAsync("textContent");11 return await textContent.JsonValueAsync<string>();12 }13 }14}
PuppeteerHandleExtensions
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 await page.ScreenshotAsync("google.png");
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You can close the page using CloseAsync:
var page = browser.NewPageAsync();
////
await page.CloseAsync();
An using
block will also close the page:
using (var page = await new browser.PageAsync())
{
///
}
Puppeteer-Sharp v2.0.3+ also supports await using
blocks
await using (var page = await new browser.PageAsync())
{
///
}
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