How to use LocatorEvaluateOptions class of Microsoft.Playwright package

Best Playwright-dotnet code snippet using Microsoft.Playwright.LocatorEvaluateOptions

LocatorSynchronous.cs

Source:LocatorSynchronous.cs Github

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...928 public static IReadOnlyList<IElementHandle> ElementHandles(this ILocator locator)929 {930 return locator.ElementHandlesAsync().GetAwaiter().GetResult();931 }932 public static JsonElement? Evaluate(this ILocator locator, string expression, object? arg = null, LocatorEvaluateOptions? options = null)933 {934 return locator.EvaluateAsync(expression, arg, options).GetAwaiter().GetResult();935 }936 /// <summary>937 /// <para>Returns the return value of <paramref name="expression"/>.</para>938 /// <para>This method passes this handle as the first argument to <paramref name="expression"/>.</para>939 /// <para>940 /// If <paramref name="expression"/> returns a <see cref="Task"/>, then <c>handle.evaluate</c>941 /// would wait for the promise to resolve and return its value.942 /// </para>943 /// <para>Examples:</para>944 /// <code>945 /// var tweets = page.Locator(".tweet .retweets");<br/>946 /// Assert.AreEqual("10 retweets", await tweets.EvaluateAsync("node =&gt; node.innerText"));947 /// </code>948 /// </summary>949 /// <param name="expression">950 /// JavaScript expression to be evaluated in the browser context. If it looks like a951 /// function declaration, it is interpreted as a function. Otherwise, evaluated as an952 /// expression.953 /// </param>954 /// <param name="arg">Optional argument to pass to <paramref name="expression"/>.</param>955 /// <param name="options">Call options</param>956 public static T Evaluate<T>(this ILocator locator, string expression, object? arg = null, LocatorEvaluateOptions? options = null)957 {958 return locator.EvaluateAsync<T>(expression, arg, options).GetAwaiter().GetResult();959 }960 /// <summary>961 /// <para>962 /// The method finds all elements matching the specified locator and passes an array963 /// of matched elements as a first argument to <paramref name="expression"/>. Returns964 /// the result of <paramref name="expression"/> invocation.965 /// </para>966 /// <para>967 /// If <paramref name="expression"/> returns a <see cref="Task"/>, then <see cref="ILocator.EvaluateAllAsync"/>968 /// would wait for the promise to resolve and return its value.969 /// </para>970 /// <para>Examples:</para>...

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Locator.cs

Source:Locator.cs Github

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...111 public Task<IReadOnlyList<IElementHandle>> ElementHandlesAsync()112 => _frame.QuerySelectorAllAsync(_selector);113 public Task<T> EvaluateAllAsync<T>(string expression, object arg = null)114 => _frame.EvalOnSelectorAllAsync<T>(_selector, expression, arg);115 public Task<JsonElement?> EvaluateAsync(string expression, object arg = null, LocatorEvaluateOptions options = null)116 => EvaluateAsync<JsonElement?>(expression, arg, options);117 public Task<T> EvaluateAsync<T>(string expression, object arg = null, LocatorEvaluateOptions options = null)118 => _frame.EvalOnSelectorAsync<T>(_selector, expression, arg, ConvertOptions<FrameEvalOnSelectorOptions>(options));119 public async Task<IJSHandle> EvaluateHandleAsync(string expression, object arg = null, LocatorEvaluateHandleOptions options = null)120 => await WithElementAsync(async (e, _) => await e.EvaluateHandleAsync(expression, arg).ConfigureAwait(false), options).ConfigureAwait(false);121 public async Task FillAsync(string value, LocatorFillOptions options = null)122 => await _frame.FillAsync(_selector, value, ConvertOptions<FrameFillOptions>(options)).ConfigureAwait(false);123 public Task FocusAsync(LocatorFocusOptions options = null)124 => _frame.FocusAsync(_selector, ConvertOptions<FrameFocusOptions>(options));125 IFrameLocator ILocator.FrameLocator(string selector) =>126 new FrameLocator(_frame, $"{_selector} >> {selector}");127 public Task<string> GetAttributeAsync(string name, LocatorGetAttributeOptions options = null)128 => _frame.GetAttributeAsync(_selector, name, ConvertOptions<FrameGetAttributeOptions>(options));129 public Task HoverAsync(LocatorHoverOptions options = null)130 => _frame.HoverAsync(_selector, ConvertOptions<FrameHoverOptions>(options));131 public Task<string> InnerHTMLAsync(LocatorInnerHTMLOptions options = null)...

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LocatorEvaluateOptions.cs

Source:LocatorEvaluateOptions.cs Github

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...35using System.Threading.Tasks;36#nullable enable37namespace Microsoft.Playwright38{39 public class LocatorEvaluateOptions40 {41 public LocatorEvaluateOptions() { }42 public LocatorEvaluateOptions(LocatorEvaluateOptions clone)43 {44 if (clone == null)45 {46 return;47 }48 Timeout = clone.Timeout;49 }50 /// <summary>51 /// <para>52 /// Maximum time in milliseconds, defaults to 30 seconds, pass <c>0</c> to disable timeout.53 /// The default value can be changed by using the <see cref="IBrowserContext.SetDefaultTimeout"/>54 /// or <see cref="IPage.SetDefaultTimeout"/> methods.55 /// </para>56 /// </summary>...

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ILocator.cs

Source:ILocator.cs Github

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...26namespace Microsoft.Playwright27{28 public partial interface ILocator29 {30 Task<JsonElement?> EvaluateAsync(string expression, object arg = null, LocatorEvaluateOptions options = null);31 }32}...

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LocatorEvaluateOptions

Using AI Code Generation

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1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main()7 {8 using var playwright = await Playwright.CreateAsync();9 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 var element = await page.QuerySelectorAsync("input[name='q']");14 var value = await element.EvaluateAsync<string>("e => e.value");15 Console.WriteLine(value);16 }17 }18}19using Microsoft.Playwright;20using System;21using System.Threading.Tasks;22{23 {24 static async Task Main()25 {26 using var playwright = await Playwright.CreateAsync();27 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions28 {29 });30 var page = await browser.NewPageAsync();31 var element = await page.QuerySelectorAsync("input[name='q']");32 var value = await element.EvaluateHandleAsync("e => e.value");33 Console.WriteLine(value);34 }35 }36}37using Microsoft.Playwright;38using System;39using System.Threading.Tasks;40{41 {42 static async Task Main()43 {44 using var playwright = await Playwright.CreateAsync();45 await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions46 {47 });48 var page = await browser.NewPageAsync();49 var element = await page.QuerySelectorAsync("input[name='q']");50 await element.FillAsync("e => e.value", "Hello World");51 Console.WriteLine(element);52 }53 }54}55using Microsoft.Playwright;56using System;57using System.Threading.Tasks;58{59 {

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LocatorEvaluateOptions

Using AI Code Generation

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1using Microsoft.Playwright;2using Microsoft.Playwright.Helpers;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 LaunchOptions11 {12 });13 var page = await browser.NewPageAsync();14 {15 };16 var locator = await page.LocatorAsync("a", locatorEvaluateOptions);17 var element = await locator.ElementAsync();18 var href = await element.GetAttributeAsync("href");19 Console.WriteLine(href);20 await browser.CloseAsync();21 }22 }23}

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LocatorEvaluateOptions

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.NUnit;5using NUnit.Framework;6{7 {8 public async Task LocatorEvaluateOptionsTest1()9 {10 await Page.SetContentAsync(@"11 ");12 var div = await Page.QuerySelectorAsync("#container");13 var text = await div.EvaluateAsync<string>("(nodes, suffix) => nodes[0].innerText + suffix", new LocatorEvaluateOptions { Elements = new[] { await Page.QuerySelectorAsync("#span1") } }, "a");14 Assert.AreEqual("1a", text);15 }16 }17}18using System;19using System.Threading.Tasks;20using Microsoft.Playwright;21using Microsoft.Playwright.NUnit;22using NUnit.Framework;23{24 {25 public async Task LocatorEvaluateOptionsTest1()26 {27 await Page.SetContentAsync(@"28 ");29 var div = await Page.QuerySelectorAsync("#container");30 var text = await div.EvaluateAsync<string>("(nodes, suffix) => nodes[0].innerText + suffix", new LocatorEvaluateOptions { Elements = new[] { await Page.QuerySelectorAsync("#span1") } }, "a");31 Assert.AreEqual("1a", text);32 }33 }34}35using System;36using System.Threading.Tasks;37using Microsoft.Playwright;38using Microsoft.Playwright.NUnit;39using NUnit.Framework;40{41 {42 public async Task LocatorEvaluateOptionsTest1()43 {

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LocatorEvaluateOptions

Using AI Code Generation

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1using Microsoft.Playwright;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8 {9 static async Task Main(string[] args)10 {11 using var playwright = await Playwright.CreateAsync();12 await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });13 var page = await browser.NewPageAsync();14 await page.FillAsync("input[title='Search']", "Playwright");15 await page.PressAsync("input[title='Search']", "Enter");16 var locator = page.Locator("div.g");17 var element = await locator.FirstAsync();18 Console.WriteLine(await element.EvaluateAsync<string>("(element) => element.textContent"));19 var elements = await locator.AllAsync();20 foreach (var e in elements)21 {22 Console.WriteLine(await e.EvaluateAsync<string>("(element) => element.textContent"));23 }24 var locator2 = page.Locator("div.g");25 var element2 = await locator2.FirstAsync();26 Console.WriteLine(await element2.EvaluateAsync<string>("(element) => element.textContent"));27 var elements2 = await locator2.AllAsync();28 foreach (var e in elements2)29 {30 Console.WriteLine(await e.EvaluateAsync<string>("(element) => element.textContent"));31 }32 var locator3 = page.Locator("div.g");33 var element3 = await locator3.FirstAsync();34 Console.WriteLine(await element3.EvaluateAsync<string>("(element) => element.textContent"));35 var elements3 = await locator3.AllAsync();36 foreach (var e in elements3)37 {38 Console.WriteLine(await e.EvaluateAsync<string>("(element) => element.textContent"));39 }40 var locator4 = page.Locator("div.g");41 var element4 = await locator4.FirstAsync();42 Console.WriteLine(await element4.EvaluateAsync<string>("(element) => element.textContent"));43 var elements4 = await locator4.AllAsync();44 foreach (var e in elements4)45 {46 Console.WriteLine(await e.EvaluateAsync<string>("(element) => element.textContent"));47 }48 var locator5 = page.Locator("div.g");

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LocatorEvaluateOptions

Using AI Code Generation

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1LocatorEvaluateOptions options = new LocatorEvaluateOptions();2options.Timeout = 10000;3options.AwaitPromise = true;4await page.LocatorEvaluateAsync("input[name='q']", "el => el.value = 'Hello'", options);5LocatorEvaluateOptions options = new LocatorEvaluateOptions();6options.Timeout = 10000;7options.AwaitPromise = true;8options.Arg = "Hello";9await page.LocatorEvaluateAsync("input[name='q']", "el => el.value = arg", options);10LocatorEvaluateOptions options = new LocatorEvaluateOptions();11options.Timeout = 10000;12options.AwaitPromise = true;13options.Arg = "Hello";14await page.LocatorEvaluateAsync("input[name='q']", "(el, arg) => el.value = arg", options);15LocatorEvaluateOptions options = new LocatorEvaluateOptions();16options.Timeout = 10000;17options.AwaitPromise = true;18options.Arg = "Hello";19await page.LocatorEvaluateAsync("input[name='q']", "(el, arg) => el.value = arg", options);20LocatorEvaluateOptions options = new LocatorEvaluateOptions();21options.Timeout = 10000;22options.AwaitPromise = true;23options.Arg = "Hello";24await page.LocatorEvaluateAsync("input[name='q']", "(el, arg) => el.value = arg", options);25LocatorEvaluateOptions options = new LocatorEvaluateOptions();26options.Timeout = 10000;27options.AwaitPromise = true;28options.Arg = "Hello";29await page.LocatorEvaluateAsync("input[name='q']", "(el, arg) => el.value = arg", options);30LocatorEvaluateOptions options = new LocatorEvaluateOptions();31options.Timeout = 10000;32options.AwaitPromise = true;33options.Arg = "Hello";34await page.LocatorEvaluateAsync("input[name='q']", "(el, arg) => el.value = arg",

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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.

Chapters:

  1. 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.
  2. 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.
  3. Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
  4. 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.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. 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.
  7. Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
  8. Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
  9. Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
  10. Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
  11. Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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Most used methods in LocatorEvaluateOptions

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