How to use LocatorEvaluateOptions method of Microsoft.Playwright.LocatorEvaluateOptions class

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

LocatorSynchronous.cs

Source:LocatorSynchronous.cs

...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>...

Locator.cs

Source:Locator.cs

...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)...

LocatorEvaluateOptions.cs

Source:LocatorEvaluateOptions.cs

...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>...

ILocator.cs

Source:ILocator.cs

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

LocatorEvaluateOptions

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3{4    static async Task Main(string[] args)5    {6        using var playwright = await Playwright.CreateAsync();7        await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });8        var page = await browser.NewPageAsync();9        var search = await page.QuerySelectorAsync("input[name='q']");10        await search.TypeAsync("Hello World");11        await page.Keyboard.PressAsync("Enter");12        await Task.Delay(2000);13        var results = await page.QuerySelectorAllAsync("div.g");14        var firstResult = await page.EvalOnSelectorAsync<string>("div.g", @"(div) => div.innerText");15        var firstResult2 = await page.EvalOnSelectorAsync<string>("div.g", @"(div) => div.innerText", new LocatorEvaluateOptions { Timeout = 3000 });16        var firstResult3 = await page.EvalOnSelectorAsync<string>("div.g", @"(div) => div.innerText", new LocatorEvaluateOptions { Force = true });17        var firstResult4 = await page.EvalOnSelectorAsync<string>("div.g", @"(div) => div.innerText", new LocatorEvaluateOptions { Timeout = 3000, Force = true });18    }19}20using Microsoft.Playwright;21using System.Threading.Tasks;22{23    static async Task Main(string[] args)24    {25        using var playwright = await Playwright.CreateAsync();26        await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });27        var page = await browser.NewPageAsync();28        var search = await page.QuerySelectorAsync("input[name='q']");29        await search.TypeAsync("Hello World");30        await page.Keyboard.PressAsync("Enter");31        await Task.Delay(2000);32        var results = await page.QuerySelectorAllAsync("div.g");33        var firstResult = await page.EvalOnSelectorAsync<string>("div.g", @"(div

LocatorEvaluateOptions

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    static async Task Main()6    {7        using var playwright = await Playwright.CreateAsync();8        await using var browser = await playwright.Chromium.LaunchAsync();9        var context = await browser.NewContextAsync();10        var page = await context.NewPageAsync();11        var input = await page.QuerySelectorAsync("input[name='q']");12        var result = await input.EvaluateAsync<string>("input => input.value");13        Console.WriteLine(result);14        await browser.CloseAsync();15    }16}17using Microsoft.Playwright;18using System;19using System.Threading.Tasks;20{21    static async Task Main()22    {23        using var playwright = await Playwright.CreateAsync();24        await using var browser = await playwright.Chromium.LaunchAsync();25        var context = await browser.NewContextAsync();26        var page = await context.NewPageAsync();27        var input = await page.QuerySelectorAsync("input[name='q']");28        var result = await input.EvaluateAsync<string>("input => input.value");29        Console.WriteLine(result);30        await browser.CloseAsync();31    }32}33using Microsoft.Playwright;34using System;35using System.Threading.Tasks;36{37    static async Task Main()38    {39        using var playwright = await Playwright.CreateAsync();40        await using var browser = await playwright.Chromium.LaunchAsync();41        var context = await browser.NewContextAsync();42        var page = await context.NewPageAsync();43        var input = await page.QuerySelectorAsync("input[name='q']");44        var result = await input.EvaluateAsync<string>("input => input.value");45        Console.WriteLine(result);46        await browser.CloseAsync();47    }48}49using Microsoft.Playwright;50using System;51using System.Threading.Tasks;52{53    static async Task Main()54    {55        using var playwright = await Playwright.CreateAsync();

LocatorEvaluateOptions

Using AI Code Generation

1var page = await browser.NewPageAsync();2var locatorEvaluateOptions = new LocatorEvaluateOptions();3locatorEvaluateOptions.Args = new object[] { "input" };4locatorEvaluateOptions.Frame = page.MainFrame;5var result = await page.QuerySelectorAsync("body").LocatorEvaluateAsync<string>("el => el.nodeName.toLowerCase()", locatorEvaluateOptions);6Console.WriteLine(result);7var page = await browser.NewPageAsync();8var locatorEvaluateHandleOptions = new LocatorEvaluateHandleOptions();9locatorEvaluateHandleOptions.Args = new object[] { "input" };10locatorEvaluateHandleOptions.Frame = page.MainFrame;11var result = await page.QuerySelectorAsync("body").LocatorEvaluateHandleAsync("el => el.nodeName.toLowerCase()", locatorEvaluateHandleOptions);12Console.WriteLine(result);13var page = await browser.NewPageAsync();14var locatorFillOptions = new LocatorFillOptions();15locatorFillOptions.Timeout = 10000;16await page.QuerySelectorAsync("input[type='search']").LocatorFillAsync("Hello", locatorFillOptions);17var page = await browser.NewPageAsync();18var locatorFrameOptions = new LocatorFrameOptions();19locatorFrameOptions.Name = "frame1";20var frame = await page.QuerySelectorAsync("body").LocatorFrameAsync(locatorFrameOptions);21Console.WriteLine(frame);22var page = await browser.NewPageAsync();23var locatorHoverOptions = new LocatorHoverOptions();24locatorHoverOptions.Timeout = 10000;25await page.QuerySelectorAsync("input[type='search']").LocatorHoverAsync(locatorHoverOptions);26var page = await browser.NewPageAsync();27var locatorInnerTextOptions = new LocatorInnerTextOptions();28locatorInnerTextOptions.Timeout = 10000;

LocatorEvaluateOptions

Using AI Code Generation

1Locator locator = page.Locator("css selector", "button");2LocatorEvaluateOptions options = new LocatorEvaluateOptions();3options.SetForce(true);4options.SetTimeout(1000);5options.SetNoWaitAfter(true);6options.SetStrict(true);7options.SetWorld("utility");8locator.EvaluateAsync<string>(@"() => {9    return document.querySelector('button').innerText;10}", options);11Locator locator = page.Locator("css selector", "button");12LocatorEvaluateHandleOptions options = new LocatorEvaluateHandleOptions();13options.SetForce(true);14options.SetTimeout(1000);15options.SetNoWaitAfter(true);16options.SetStrict(true);17options.SetWorld("utility");18locator.EvaluateHandleAsync<string>(@"() => {19    return document.querySelector('button').innerText;20}", options);21Locator locator = page.Locator("css selector", "button");22LocatorFillOptions options = new LocatorFillOptions();23options.SetForce(true);24options.SetTimeout(1000);25options.SetNoWaitAfter(true);26options.SetStrict(true);27locator.FillAsync("button", options);28Locator locator = page.Locator("css selector", "button");29LocatorFrameOptions options = new LocatorFrameOptions();30options.SetName("name");31locator.FrameAsync(options);32Locator locator = page.Locator("css selector", "button");33LocatorHoverOptions options = new LocatorHoverOptions();34options.SetForce(true);35options.SetTimeout(1000);36options.SetNoWaitAfter(true);37options.SetStrict(true);38locator.HoverAsync(options);39Locator locator = page.Locator("css selector", "button");40LocatorInnerTextOptions options = new LocatorInnerTextOptions();41options.SetForce(true);42options.SetTimeout(1000);43options.SetNoWaitAfter(true);44options.SetStrict(true);45locator.InnerTextAsync(options);

LocatorEvaluateOptions

Using AI Code Generation

1var options = new LocatorEvaluateOptions();2options.Timeout = 5000;3var results = await locator.EvaluateAsync<string>(@"(elements, options) => {4    return elements.map(e => e.textContent);5}", options);6Console.WriteLine(results);7var options = new LocatorEvaluateHandleOptions();8options.Timeout = 5000;9var results = await locator.EvaluateHandleAsync(@"(elements, options) => {10    return elements.map(e => e.textContent);11}", options);12Console.WriteLine(results);13var options = new LocatorFillOptions();14options.Timeout = 5000;15await locator.FillAsync("hello", options);16var options = new LocatorFrameOptions();17options.Timeout = 5000;18var results = await locator.FrameAsync(options);19Console.WriteLine(results);20var options = new LocatorHoverOptions();21options.Timeout = 5000;22await locator.HoverAsync(options);23var options = new LocatorIsCheckedOptions();24options.Timeout = 5000;25var results = await locator.IsCheckedAsync(options);26Console.WriteLine(results);27var options = new LocatorIsDisabledOptions();28options.Timeout = 5000;29var results = await locator.IsDisabledAsync(options);30Console.WriteLine(results);

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:

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.
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.
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.
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.
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.
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.
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.
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.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.