KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use EvaluateAllAsync method of Microsoft.Playwright.Core.Locator class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Locator.EvaluateAllAsync

Locator.cs

Source:Locator.cs

...62        public ILocator First => new Locator(_frame, $"{_selector} >> nth=0");63        public ILocator Last => new Locator(_frame, $"{_selector} >> nth=-1");64        IPage ILocator.Page => _frame.Page;65        public async Task<IReadOnlyList<string>> AllInnerTextsAsync()66            => await EvaluateAllAsync<string[]>("ee => ee.map(e => e.innerText)").ConfigureAwait(false);67        public async Task<IReadOnlyList<string>> AllTextContentsAsync()68            => await EvaluateAllAsync<string[]>("ee => ee.map(e => e.textContent || '')").ConfigureAwait(false);69        public async Task<LocatorBoundingBoxResult> BoundingBoxAsync(LocatorBoundingBoxOptions options = null)70            => await WithElementAsync(71                async (h, _) =>72                {73                    var bb = await h.BoundingBoxAsync().ConfigureAwait(false);74                    if (bb == null)75                    {76                        return null;77                    }78                    return new LocatorBoundingBoxResult()79                    {80                        Height = bb.Height,81                        Width = bb.Width,82                        X = bb.X,83                        Y = bb.Y,84                    };85                },86                options).ConfigureAwait(false);87        public Task CheckAsync(LocatorCheckOptions options = null)88            => _frame.CheckAsync(89                _selector,90                ConvertOptions<FrameCheckOptions>(options));91        public Task ClickAsync(LocatorClickOptions options = null)92            => _frame.ClickAsync(93                _selector,94                ConvertOptions<FrameClickOptions>(options));95        public Task SetCheckedAsync(bool checkedState, LocatorSetCheckedOptions options = null)96            => checkedState ?97                CheckAsync(ConvertOptions<LocatorCheckOptions>(options))98                : UncheckAsync(ConvertOptions<LocatorUncheckOptions>(options));99        public Task<int> CountAsync()100            => _frame.QueryCountAsync(_selector);101        public Task DblClickAsync(LocatorDblClickOptions options = null)102            => _frame.DblClickAsync(_selector, ConvertOptions<FrameDblClickOptions>(options));103        public Task DispatchEventAsync(string type, object eventInit = null, LocatorDispatchEventOptions options = null)104            => _frame.DispatchEventAsync(_selector, type, eventInit, ConvertOptions<FrameDispatchEventOptions>(options));105        public Task DragToAsync(ILocator target, LocatorDragToOptions options = null)106            => _frame.DragAndDropAsync(_selector, ((Locator)target)._selector, ConvertOptions<FrameDragAndDropOptions>(options));107        public async Task<IElementHandle> ElementHandleAsync(LocatorElementHandleOptions options = null)108            => await _frame.WaitForSelectorAsync(109                _selector,110                ConvertOptions<FrameWaitForSelectorOptions>(options)).ConfigureAwait(false);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)...

EvaluateAllAsync

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    static async Task Main(string[] args)6    {7        await using var playwright = await Playwright.CreateAsync();8        await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions9        {10        });11        var page = await browser.NewPageAsync();12        var locator = page.Locator("input[type='search']");13        var elements = await locator.EvaluateAllAsync<string>("elements => elements.map(element => element.value)");14        foreach (var element in elements)15        {16            Console.WriteLine(element);17        }18    }19}

EvaluateAllAsync

Using AI Code Generation

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

EvaluateAllAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            var table = await page.QuerySelectorAsync("table");12            var rows = await table.QuerySelectorAllAsync("tr");13            foreach (var row in rows)14            {15                var tds = await row.QuerySelectorAllAsync("td");16                foreach (var td in tds)17                {18                    var text = await td.EvaluateAsync<string>("(td)=>td.textContent");19                    Console.WriteLine(text);20                }21            }22        }23    }24}

EvaluateAllAsync

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(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            var locator = page.Locator("input[type='search']");14            var elements = await locator.EvaluateAllAsync<ElementHandle>("elements => elements.map(element => element)");15            foreach(var element in elements)16            {17                Console.WriteLine(element);18            }19        }20    }21}

EvaluateAllAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;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 BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var locator = page.Locator("input[type=text]");15            var elements = await locator.EvaluateAllAsync("elements => elements.map(element => element.value)", new object[] { });16            foreach (var element in elements)17            {18                Console.WriteLine(element);19            }20        }21    }22}23using System;24using System.Threading.Tasks;25using Microsoft.Playwright;26using Microsoft.Playwright.Core;27{28    {29        static async Task Main(string[] args)30        {31            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 element = await page.QuerySelectorAsync("input[type=text]");37            var value = await element.EvaluateAsync("element => element.value", new object[] { });38            Console.WriteLine(value);39        }40    }41}42using System;43using System.Threading.Tasks;44using Microsoft.Playwright;45using Microsoft.Playwright.Core;46{47    {48        static async Task Main(string[] args)49        {50            using var playwright = await Playwright.CreateAsync();51            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions52            {53            });54            var page = await browser.NewPageAsync();55            var element = await page.QuerySelectorAsync("input[type=text]");56            var values = await element.EvaluateAllAsync("element => element.value", new object[]

EvaluateAllAsync

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(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.TypeAsync("input[name='q']", "Playwright");14            var results = await page.Locator("input[name='q']").EvaluateAllAsync<string>("elements => elements.map(element => element.value)");15            foreach (var result in results)16            {17                Console.WriteLine(result);18            }19        }20    }21}

EvaluateAllAsync

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Core;8using Microsoft.Playwright.Transport.Channels;9{10    {11        static async Task Main(string[] args)12        {13            using var playwright = await Playwright.CreateAsync();14            var browser = await playwright.Chromium.LaunchAsync();15            var context = await browser.NewContextAsync();16            var page = await context.NewPageAsync();17            var element = await page.Locator("input[type='text']").EvaluateAllAsync("element => element.value");18            Console.WriteLine(element);19        }20    }21}22using System;23using System.Collections.Generic;24using System.Linq;25using System.Text;26using System.Threading.Tasks;27using Microsoft.Playwright;28using Microsoft.Playwright.Core;29using Microsoft.Playwright.Transport.Channels;30{31    {32        static async Task Main(string[] args)33        {34            using var playwright = await Playwright.CreateAsync();35            var browser = await playwright.Chromium.LaunchAsync();36            var context = await browser.NewContextAsync();37            var page = await context.NewPageAsync();38            var element = await page.Locator("input[type='text']").FirstAsync();39            var text = await element.TextContentAsync();40            Console.WriteLine(text);41        }42    }43}

EvaluateAllAsync

Using AI Code Generation

1using System;2using System.Collections.Generic;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();11            var page = await browser.NewPageAsync();12            await page.TypeAsync("input[name=q]", "Playwright");13            await page.ClickAsync("text=Search");14            await page.WaitForSelectorAsync("text=Playwright");15            var allElements = await elements.EvaluateAllAsync<IElementHandle>("el => el");16            foreach (var element in allElements)17            {18                Console.WriteLine(element);19            }20        }21    }22}

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.