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How to use Selectors class of Microsoft.Playwright.Core package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Selectors

Job.cs

Source:Job.cs

...100                    await entry.Page.GotoAsync(entry.Url);101                }102103                // Wait for selectors?104                if (entry.WaitForSelectors != null)105                {106                    foreach (var selector in entry.WaitForSelectors)107                    {108                        await entry.Page.WaitForSelectorAsync(selector);109                    }110                }111112                // Wait for functions?113                if (entry.WaitForFunctions != null)114                {115                    foreach (var function in entry.WaitForFunctions)116                    {117                        await entry.Page.WaitForFunctionAsync(function);118                    }119                }120121                // Render to byte-array.122                entry.PdfBytes = await entry.Page.PdfAsync();123            }124125            // Merge PDFs.126            if (instructions.Entries.Count > 1)127            {128                using var pdfDoc = new PdfDocument();129130                foreach (var entry in instructions.Entries)131                {132                    var ms = new MemoryStream(entry.PdfBytes);133                    var doc = PdfReader.Open(ms, PdfDocumentOpenMode.Import);134135                    for (var i = 0; i < doc.PageCount; i++)136                    {137                        pdfDoc.AddPage(doc.Pages[i]);138                    }139                }140141                await using var output = new MemoryStream();142143                pdfDoc.Save(output, true);144                this.JobFinishedBytes = output.ToArray();145            }146            else147            {148                this.JobFinishedBytes = instructions.Entries[0].PdfBytes;149            }150        }151152        #endregion153154        #region Helper classes155156        public class Instructions157        {158            /// <summary>159            /// Entries to be rendered.160            /// </summary>161            public List<RenderEntry> Entries { get; set; }162163            /// <summary>164            /// Webhooks to call for various job statuses.165            /// </summary>166            public WebHooksWrapper WebHooks { get; set; }167168            /// <summary>169            /// Email to send for various job statuses.170            /// </summary>171            public EmailHookWrapper EmailHooks { get; set; }172173            public class RenderEntry174            {175                /// <summary>176                /// HTML to render.177                /// </summary>178                public string Html { get; set; }179180                /// <summary>181                /// URL to render.182                /// </summary>183                public string Url { get; set; }184185                /// <summary>186                /// Wait for CSS selectors.187                /// </summary>188                public string[] WaitForSelectors { get; set; }189190                /// <summary>191                /// Wait for JavaScript functions.192                /// </summary>193                public string[] WaitForFunctions { get; set; }194195                /// <summary>196                /// Playwright page.197                /// </summary>198                public IPage Page { get; set; }199200                /// <summary>201                /// Rendered PDF, as bytes.202                /// </summary>
...

Browser.cs

Source:Browser.cs

...98               userAgent: options.UserAgent,99               viewportSize: options.ViewportSize,100               screenSize: options.ScreenSize,101               baseUrl: options.BaseURL,102               strictSelectors: options.StrictSelectors,103               forcedColors: options.ForcedColors).ConfigureAwait(false)).Object;104            context.Options = options;105            ((Tracing)context.Tracing).LocalUtils = LocalUtils;106            BrowserContextsList.Add(context);107            return context;108        }109        public async Task<IPage> NewPageAsync(BrowserNewPageOptions options = default)110        {111            options ??= new();112            var contextOptions = new BrowserNewContextOptions()113            {114                AcceptDownloads = options.AcceptDownloads,115                IgnoreHTTPSErrors = options.IgnoreHTTPSErrors,116                BypassCSP = options.BypassCSP,117                ViewportSize = options.ViewportSize,118                ScreenSize = options.ScreenSize,119                UserAgent = options.UserAgent,120                DeviceScaleFactor = options.DeviceScaleFactor,121                IsMobile = options.IsMobile,122                HasTouch = options.HasTouch,123                JavaScriptEnabled = options.JavaScriptEnabled,124                TimezoneId = options.TimezoneId,125                Geolocation = options.Geolocation,126                Locale = options.Locale,127                Permissions = options.Permissions,128                ExtraHTTPHeaders = options.ExtraHTTPHeaders,129                Offline = options.Offline,130                HttpCredentials = options.HttpCredentials,131                ColorScheme = options.ColorScheme,132                ReducedMotion = options.ReducedMotion,133                ForcedColors = options.ForcedColors,134                RecordHarPath = options.RecordHarPath,135                RecordHarOmitContent = options.RecordHarOmitContent,136                RecordVideoDir = options.RecordVideoDir,137                RecordVideoSize = options.RecordVideoSize,138                Proxy = options.Proxy,139                StorageState = options.StorageState,140                StorageStatePath = options.StorageStatePath,141                BaseURL = options.BaseURL,142                StrictSelectors = options.StrictSelectors,143            };144            var context = (BrowserContext)await NewContextAsync(contextOptions).ConfigureAwait(false);145            var page = (Page)await context.NewPageAsync().ConfigureAwait(false);146            page.OwnedContext = context;147            context.Options = contextOptions;148            context.OwnerPage = page;149            return page;150        }151        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());152        internal static Dictionary<string, object> GetVideoArgs(string recordVideoDir, RecordVideoSize recordVideoSize)153        {154            Dictionary<string, object> recordVideoArgs = null;155            if (recordVideoSize != null && string.IsNullOrEmpty(recordVideoDir))156            {...

BrowserChannel.cs

Source:BrowserChannel.cs

...73            string userAgent = null,74            ViewportSize viewportSize = default,75            ScreenSize screenSize = default,76            string baseUrl = default,77            bool? strictSelectors = default)78        {79            var args = new Dictionary<string, object>80            {81                { "acceptDownloads", acceptDownloads },82                { "bypassCSP", bypassCSP },83                { "colorScheme", colorScheme },84                { "reducedMotion", reducedMotion },85                { "deviceScaleFactor", deviceScaleFactor },86            };87            if (extraHTTPHeaders != null)88            {89                args["extraHTTPHeaders"] = extraHTTPHeaders.Select(kv => new HeaderEntry { Name = kv.Key, Value = kv.Value }).ToArray();90            }91            args.Add("geolocation", geolocation);92            args.Add("hasTouch", hasTouch);93            args.Add("httpCredentials", httpCredentials);94            args.Add("ignoreHTTPSErrors", ignoreHTTPSErrors);95            args.Add("isMobile", isMobile);96            args.Add("javaScriptEnabled", javaScriptEnabled);97            args.Add("locale", locale);98            args.Add("offline", offline);99            args.Add("permissions", permissions);100            args.Add("proxy", proxy);101            args.Add("strictSelectors", strictSelectors);102            args.Add("forcedColors", forcedColors);103            if (!string.IsNullOrEmpty(recordHarPath))104            {105                args.Add("recordHar", new106                {107                    Path = recordHarPath,108                    OmitContent = recordHarOmitContent,109                });110            }111            if (recordVideo != null)112            {113                args.Add("recordVideo", recordVideo);114            }115            if (!string.IsNullOrEmpty(storageStatePath))...

PlaywrightImpl.cs

Source:PlaywrightImpl.cs

...61        IChannel<PlaywrightImpl> IChannelOwner<PlaywrightImpl>.Channel => _channel;62        public IBrowserType Chromium { get => _initializer.Chromium; set => throw new NotSupportedException(); }63        public IBrowserType Firefox { get => _initializer.Firefox; set => throw new NotSupportedException(); }64        public IBrowserType Webkit { get => _initializer.Webkit; set => throw new NotSupportedException(); }65        public ISelectors Selectors => _initializer.Selectors;66        public IReadOnlyDictionary<string, BrowserNewContextOptions> Devices => _devices;67        internal Connection Connection { get; set; }68        internal Browser PreLaunchedBrowser => _initializer.PreLaunchedBrowser;69        internal LocalUtils Utils { get; set; }70        /// <summary>71        /// Gets a <see cref="IBrowserType"/>.72        /// </summary>73        /// <param name="browserType"><see cref="IBrowserType"/> name. You can get the names from <see cref="global::Microsoft.Playwright.BrowserType"/>.74        /// e.g.: <see cref="global::Microsoft.Playwright.BrowserType.Chromium"/>,75        /// <see cref="global::Microsoft.Playwright.BrowserType.Firefox"/> or <see cref="global::Microsoft.Playwright.BrowserType.Webkit"/>.76        /// </param>77        public IBrowserType this[string browserType]78            => browserType?.ToLower() switch79            {...

SelectorsChannelImpl.cs

Source:SelectorsChannelImpl.cs

...35using Microsoft.Playwright.Helpers;36#nullable enable37namespace Microsoft.Playwright.Transport.Channels38{39    internal class SelectorsChannelImpl : Channel<Selectors>40    {41        public SelectorsChannelImpl(string guid, Connection connection, Selectors owner) : base(guid, connection, owner)42        {43        }44        internal virtual async Task RegisterAsync(string name,45                string source,46                bool? contentScript)47            => await Connection.SendMessageToServerAsync<JsonElement>(48                Guid,49                "register",50                    new51                    {52                        name = name,53                        source = source,54                        contentScript = contentScript,55                    }56                )57                .ConfigureAwait(false);58    }59    internal partial class SelectorsChannel : SelectorsChannelImpl60    {61        public SelectorsChannel(string guid, Connection connection, Selectors owner) : base(guid, connection, owner)62        {63        }64    }65}66#nullable disable...

Selectors.cs

Source:Selectors.cs

...25using Microsoft.Playwright.Transport;26using Microsoft.Playwright.Transport.Channels;27namespace Microsoft.Playwright.Core28{29    internal class Selectors : ChannelOwnerBase, IChannelOwner<Selectors>, ISelectors30    {31        private readonly SelectorsChannel _channel;32        internal Selectors(IChannelOwner parent, string guid) : base(parent, guid)33        {34            _channel = new(guid, parent.Connection, this);35        }36        ChannelBase IChannelOwner.Channel => _channel;37        IChannel<Selectors> IChannelOwner<Selectors>.Channel => _channel;38        public async Task RegisterAsync(string name, SelectorsRegisterOptions options = default)39        {40            options ??= new SelectorsRegisterOptions();41            var script = ScriptsHelper.EvaluationScript(options?.Script, options?.Path);42            await _channel.RegisterAsync(name, script, options?.ContentScript).ConfigureAwait(false);43        }44    }45}...

BlazorWASMPlaywrightTests.cs

Source:BlazorWASMPlaywrightTests.cs

...24            var browser = await GetBrowser();25            var page = await browser.NewPageAsync();26            await page.GotoAsync(_server.RootUri + "counter", new PageGotoOptions() { WaitUntil = WaitUntilState.NetworkIdle });27            await page.ClickAsync("#IncrementBtn");28            // Selectors are not only CSS selectors. You can use xpath, css, or text selectors29            // By default there is a timeout of 30s. If the selector isn't found after the timeout, an exception is thrown.30            // More about selectors: https://playwright.dev/#version=v1.4.2&path=docs%2Fselectors.md31            await page.WaitForSelectorAsync("text=Current count: 1");32            await browser.CloseAsync();33        }34        public static async Task<IBrowser> GetBrowser()35        {36            var playwright = await Playwright.CreateAsync();37            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions()38            {39                Headless = false,40                SlowMo = 500041            });42            return browser;...

PlaywrightInitializer.cs

Source:PlaywrightInitializer.cs

...30        public Core.BrowserType Firefox { get; set; }31        public Core.BrowserType Webkit { get; set; }32        public Core.LocalUtils Utils { get; set; }33        public List<DeviceDescriptorEntry> DeviceDescriptors { get; set; }34        public Core.Selectors Selectors { get; set; }35        public Core.Browser PreLaunchedBrowser { get; set; }36        public Core.SocksSupport SocksSupport { get; set; }37    }38}

Selectors

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 page = await browser.NewPageAsync();10        var element = await page.QuerySelectorAsync("input[name=search]");11        await element.TypeAsync("Playwright");12        await element.PressAsync("Enter");13        await page.ScreenshotAsync("screenshot.png");14    }15}16using Microsoft.Playwright;17using System;18using System.Threading.Tasks;19{20    static async Task Main()21    {22        using var playwright = await Playwright.CreateAsync();23        await using var browser = await playwright.Chromium.LaunchAsync();24        var page = await browser.NewPageAsync();25        var element = await page.QuerySelectorAsync("input[name=search]");26        await element.TypeAsync("Playwright");27        await element.PressAsync("Enter");28        await page.ScreenshotAsync("screenshot.png");29    }30}31using Microsoft.Playwright;32using System;33using System.Threading.Tasks;34{35    static async Task Main()36    {37        using var playwright = await Playwright.CreateAsync();38        await using var browser = await playwright.Chromium.LaunchAsync();39        var page = await browser.NewPageAsync();40        var element = await page.QuerySelectorAsync("input[name=search]");41        await element.TypeAsync("Playwright");42        await element.PressAsync("Enter");43        await page.ScreenshotAsync("screenshot.png");44    }45}46using Microsoft.Playwright;47using System;48using System.Threading.Tasks;49{50    static async Task Main()51    {52        using var playwright = await Playwright.CreateAsync();53        await using var browser = await playwright.Chromium.LaunchAsync();54        var page = await browser.NewPageAsync();

Selectors

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Collections.Generic;5using System.Linq;6using System.Text;7using System.Threading.Tasks;8{9    {10        static async Task Main(string[] args)11        {12            using var playwright = await Playwright.CreateAsync();13            await using var browser = await playwright.Chromium.LaunchAsync();14            var page = await browser.NewPageAsync();15            var input = await page.QuerySelectorAsync("input[title='Search']");16            await input.TypeAsync("Hello World");17            var button = await page.QuerySelectorAsync("input[value='Google Search']");18            await button.ClickAsync();19        }20    }21}

Selectors

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await Playwright.InstallAsync();9            using var playwright = await Playwright.CreateAsync();10            using var browser = await playwright.Firefox.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });11            var context = await browser.NewContextAsync(new BrowserNewContextOptions { IgnoreHTTPSErrors = true });12            var page = await context.NewPageAsync();13            await page.ClickAsync("text=Sign in");14            await page.ClickAsync("input[name=\"identifier\"]");15            await page.TypeAsync("input[name=\"identifier\"]", "

Selectors

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using Microsoft.Playwright.Helpers;4using System;5using System.Collections.Generic;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9{10    {11        static async Task Main(string[] args)12        {13            using var playwright = await Playwright.CreateAsync();14            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });15            var context = await browser.NewContextAsync();16            var page = await context.NewPageAsync();17            await page.ClickAsync("text=Google apps");18            await page.ClickAsync("text=Search se

Selectors

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4using Microsoft.Playwright.Core;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync(headless: false);11            var page = await browser.NewPageAsync();12            await page.ClickAsync("text=English");13            await page.ClickAsync("text=Log in");14            await page.TypeAsync("input[name='wpName']", "username");15            await page.TypeAsync("input[name='wpPassword']", "password");16            await page.ClickAsync("input[type='submit']");17            await page.ClickAsync("text=Log out");18            await browser.CloseAsync();19        }20    }21}

Selectors

Using AI Code Generation

1{2    public static string XPath(string selector) { throw null; }3    public static string Text(string selector) { throw null; }4    public static string Css(string selector) { throw null; }5    public static string Shadow(string selector) { throw null; }6    public static string Fill(string selector) { throw null; }7    public static string TextEquals(string selector) { throw null; }8    public static string TextMatches(string selector) { throw null; }

Selectors

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {

Selectors

Using AI Code Generation

1using Microsoft.Playwright.Core;2using Microsoft.Playwright.Core.Selectors;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var selectorEngine = new SelectorEngine();10            selectorEngine.AddSelector("myselector", "myselector", (node, selector, options) =>11            {12                return Task.FromResult(node);13            });14            var browser = await Microsoft.Playwright.Core.Playwright.CreateBrowserAsync();15            var page = await browser.NewPageAsync();16            var element = await page.QuerySelectorAsync("myselector");17            await browser.CloseAsync();18        }19    }20}

Selectors

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            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            await element.TypeAsync("Microsoft");15            await element.PressAsync("Enter");16            await page.ScreenshotAsync("screenshot.png");17            await browser.CloseAsync();18        }19    }20}21using Microsoft.Playwright;22using System;23using System.Threading.Tasks;24{25    {26        static async Task Main(string[] args)27        {28            var playwright = await Playwright.CreateAsync();29            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions30            {31            });32            var page = await browser.NewPageAsync();33            var element = await page.QuerySelectorAsync("input[name='q']");34            await element.TypeAsync("Microsoft");35            await element.PressAsync("Enter");36            await page.ScreenshotAsync("screenshot.png");37            await browser.CloseAsync();38        }39    }40}41using Microsoft.Playwright;42using System;43using System.Threading.Tasks;44{45    {46        static async Task Main(string[] args)47        {48            var playwright = await Playwright.CreateAsync();49            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions50            {51            });52            var page = await browser.NewPageAsync();53            var element = await page.QuerySelectorAsync("input[name='q']");54            await element.TypeAsync("Microsoft");55            await element.PressAsync("Enter");

Selectors

Using AI Code Generation

1using Microsoft.Playwright.Core;2{3    public static string SelectorsClass()4    {5        return "Selectors";6    }7}8using System;9{10    {11        static void Main(string[] args)12        {13            Console.WriteLine("Hello World!");14        }15    }16}17using System;18{19    {20        static void Main(string[] args)21        {22            Console.WriteLine("Hello World!");23        }24    }25}26using System;27{28    {29        static void Main(string[] args)30        {31            Console.WriteLine("Hello World!");32        }33    }34}35using System;36{37    {38        static void Main(string[] args)39        {40            Console.WriteLine("Hello World!");41        }42    }43}

Playwright tutorial

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Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
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