How to maximize the browser window in Selenium WebDriver (Selenium 2) using C#?

Question

Is there any way to maximize the browser window using WebDriver (Selenium 2) with C#?

WebDriver (http://code.google.com/p/selenium/?redir=1) basically allows you to test web pages though code. — Reflux, Jul 07 '10 at 22:19

score 186 · Answer 1 · edited May 31 '17 at 04:24

186

driver.Manage().Window.Maximize();

This works for IE and Firefox. Chrome does not work. There is a bug submitted for this on ChromeDriver project.

Meanwhile, the get around for the chrome is to implement what Joey V. and Coder323 suggested.

ChromeOptions options = new ChromeOptions();
options.addArgument("--start-maximized");
driver = new ChromeDriver(options);

edited May 31 '17 at 04:24

Dirk

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answered Apr 26 '12 at 16:35

bipinkarms

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This way for firefox is the only one that works, the javascript doesnt do anythign on selenium 2.21 – Sam Adamsh May 11 '12 at 08:12
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For case sensitive Java => driver.manage().window().maximize(); – Janaaaa Jul 25 '13 at 15:16
`AttributeError: 'WebDriver' object has no attribute 'Manage'` – User Nov 19 '14 at 07:02
Well. I will say thanks :) it does work on my chromedriver. – Xin May 19 '16 at 02:54
I am using FF53 with Selenium WebDriver 3.3.0 . driver.Manage().Window.Maximize(); works for me – Ripon Al Wasim Mar 27 '17 at 13:37
The argument `start-maximized` does not seem to have any effect – Andry Mar 12 '20 at 09:09
It worked in chrome for me. `var driver =new ChromeDriver(); driver.Manage().Window.Maximize();` – Atiq Baqi Nov 14 '20 at 11:16
This appears to be fixed in ChromeDriver now without adding the --start-maximized argument. – John Chesshir Apr 19 '22 at 21:04

score 60 · Answer 2 · edited Jun 20 '20 at 09:12

60

Java

driver.manage().window().maximize();

Python

driver.maximize_window()

Ruby

@driver.manage.window.maximize

OR

max_width, max_height = driver.execute_script("return [window.screen.availWidth, window.screen.availHeight];")
@driver.manage.window.resize_to(max_width, max_height)

OR

target_size = Selenium::WebDriver::Dimension.new(1600, 1268)
@driver.manage.window.size = target_size

edited Jun 20 '20 at 09:12

Community

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answered Nov 18 '14 at 15:52

Prashanth Sams

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score 45 · Answer 3 · edited Apr 13 '16 at 09:04

45

For IE and Firefox:

driver.manage().window().maximize();

For Chrome:

ChromeOptions options = new ChromeOptions();
options.addArguments("--start-maximized");
driver = new ChromeDriver( options )

edited Apr 13 '16 at 09:04

Prasad Khode

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answered May 10 '12 at 22:12

Luis

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C# it's like this. driver.Manage().Window.Maximize(); – Chris Hawkes Jul 27 '16 at 01:43
driver.manage().window().maximize(); works for chrome as well – mosaad Nov 28 '16 at 13:35
Thanks Chris, C# needs uppercase methods : this. driver.Manage().Window.Maximize(); – LA Guy 88 Mar 05 '17 at 20:05

score 43 · Accepted Answer · edited Mar 28 '17 at 13:09

43

There's an outstanding issue to add this functionality to WebDriver, which can be tracked here: http://code.google.com/p/selenium/issues/detail?id=174

A workaround would be to use the JavascriptExector as follows:

public void resizeTest() {
    driver.Navigate().GoToUrl("http://www.example.com/");
((IJavaScriptExecutor)driver).ExecuteScript("window.resizeTo(1024, 768);");
}

edited Mar 28 '17 at 13:09

Ripon Al Wasim

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answered Jul 07 '10 at 08:34

Dave Hunt

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Two things: 1) If you care what's visible you probably want to move the window to origin before making it full screen. 2) If the screen dimensions are variable you can get them at run time with the javascript `screen` object. Taking these points into consideration the javascript should probably be: `window.moveTo(0,0); window.resizeTo(screen.width, screen.height);` – Guildencrantz Jul 08 '10 at 01:30
4

Note that there's an issue moving the window to (0,0) in Firefox on Mac. It appears to not account for its header region properly. Moving the window to (0,1) seems to actually move it to (0,0) though, so one bug helps another. At that point you can maximize the window properly. – nirvdrum Aug 12 '10 at 11:58
Should be JavascriptExecutor instance IJavaScriptExecutor – TuGordoBello May 18 '17 at 15:05

Ripon Al Wasim · Answer 5 · 2020-06-13T10:27:54.710

20

Test step/scenario:
1. Open a browser and navigate to TestURL
2. Maximize the browser

Maximize the browser with C# (.NET):

driver.Manage().Window.Maximize();

Maximize the browser with Java :

driver.manage().window().maximize();

Another way to do with Java:

Toolkit toolkit = Toolkit.getDefaultToolkit();
Dimension screenResolution = new Dimension((int) 
                    toolkit.getScreenSize().getWidth(), (int) 
                    toolkit.getScreenSize().getHeight());

driver.manage().window().setSize(screenResolution);

edited Jun 13 '20 at 10:27

answered Jul 24 '12 at 09:27

Ripon Al Wasim

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This fails in case of chrome docker container with error java.awt.HeadlessException at sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:284). Did you encounter this issue before ? – vikramvi Oct 19 '16 at 19:48
I tried with driver.Manage().Window.Maximize(); in Selenium WebDriver C# on FF and it worked well. I didn't try with Chrome yet. – Ripon Al Wasim Apr 09 '17 at 10:34
This worked for me but I had to add `driver.manage().window().setPosition(new Point(0,0));` before the last line or the window wouldn't be in the right position. – swanhella Jun 07 '17 at 00:34
swanhella: Thanks to share this – Ripon Al Wasim Jun 07 '17 at 10:27
"Another way to do with Java:" helped me alot, in my case selenium didn't screenshot all screen and setting size fixed the problem. – Jeffrey Jul 03 '22 at 10:43

score 15 · Answer 6 · answered Jan 05 '12 at 10:39

15

You can use something like this (C#):

driver.Manage().Window.Size = new Size(1024, 768);

answered Jan 05 '12 at 10:39

DrunkCoder

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Unfortunately this throws and exception for the ChromeDriver. Works fine for IE and Firefox though. – Bryan Allred Mar 27 '12 at 15:00
Using this code with Selenium C# should work fine now since ChromeDriver is now provided by Google (though it 's for selenium 3). Alternatively you could use the maximize function or just add the following argument via options: "--start-maximized" – user1841243 Jul 01 '19 at 14:08

score 8 · Answer 7 · answered Aug 31 '17 at 07:35

8

Simply use Window.Maximize() command

WebDriver driver= new ChromeDriver()
driver.Manage().Window.Maximize();

answered Aug 31 '17 at 07:35

iamsankalp89

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score 8 · Answer 8 · answered Oct 21 '11 at 16:57

If you are using the Chrome Driver you can set the capabilities

    var capabilities = new DesiredCapabilities();

    var switches = new List<string>
                       {
                           "--start-maximized"
                       };

    capabilities.SetCapability("chrome.switches", switches);

    new ChromeDriver(chromedriver_path, capabilities);

score 6 · Answer 9 · edited Apr 21 '15 at 10:40

6

For Java:

driver.manage().window().maximize();

It will work in IE, Mozilla, Chrome

edited Apr 21 '15 at 10:40

Ripon Al Wasim

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answered Dec 21 '12 at 13:15

Ramaguru N

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How could I set the same for AndroidDriver(); – Karthick May 12 '14 at 04:02

score 6 · Answer 10 · edited Dec 13 '17 at 08:14

6

The following Selenium Java code snippet worked for me:

driver.manage().window().setPosition(new Point(0,0));
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
Dimension dim = new Dimension((int) screenSize.getWidth(), (int) screenSize.getHeight());
driver.manage().window().setSize(dim);

edited Dec 13 '17 at 08:14

Ripon Al Wasim

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answered Dec 26 '11 at 16:28

KrishPrabakar

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score 5 · Answer 11 · edited May 18 '18 at 01:08

5

I had the same problem, but the problem can be solved by using following code.

driver.manage().window().fullscreen();

edited May 18 '18 at 01:08

Stephen Rauch

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answered May 18 '18 at 00:50

skarki

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score 4 · Answer 12 · edited Mar 25 '15 at 10:51

4

For C#:

driver.Manage().Window.Maximize();

For Java:

driver.manage().window().maximize();

edited Mar 25 '15 at 10:51

Ripon Al Wasim

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answered Mar 25 '15 at 09:50

Kumrun Nahar Keya

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Shubham Jain · Answer 13 · 2017-08-07T11:35:37.693

We have observed bug with new driver libraries. You can use slightly old jars which are able to handle new browsers versions.

The main generic option is :-

driver.manage().window().maximize();

You can also use other option for maximizing the browser window.

Example:-

Add below option and pass it to driver:-

    chromeOptions.addArguments("--start-maximized");

The full code will look like below :-

System.setProperty("webdriver.chrome.driver","D:\\Workspace\\JmeterWebdriverProject\\src\\lib\\chromedriver.exe");
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("--start-maximized");
driver = new ChromeDriver(chromeOptions);

OR

Toolkit toolkit = Toolkit.getDefaultToolkit();
int Width = (int) toolkit.getScreenSize().getWidth();
int Height = (int)toolkit.getScreenSize().getHeight();
//For Dimension class, Import following library "org.openqa.selenium.Dimension"  
driver.manage().window().setSize(new Dimension(Width,Height));
driver.get("https://google.com");

Try this on safari :-

JavascriptExecutor jse = (JavascriptExecutor)driver;
String screenWidth = jse.executeScript("return screen.availWidth").toString();
String screenHeight = jse.executeScript("return screen.availHeight").toString();
int intScreenWidth = Integer.parseInt(screenWidth);
int intScreenHeight = Integer.parseInt(screenHeight);
Dimension d = new Dimension(intScreenWidth, intScreenHeight);
driver.manage.window.setSize(d);

score 3 · Answer 14 · answered Jun 01 '12 at 20:57

using System.Windows.Forms;
using System.Drawing;

public static void MaximizeBrowser(this IE myBrowser)
{
    myBrowser.SizeWindow(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);
}

I used Jim's code, but slightly modified for use with WatiN and C# to maximize the browser.

score 2 · Answer 15 · answered Apr 16 '12 at 12:48

I used this solution

            OpenQA.Selenium.Chrome.ChromeOptions chromeoptions = new OpenQA.Selenium.Chrome.ChromeOptions();
            chromeoptions.AddArgument("--start-maximized");
            OpenQA.Selenium.Chrome.ChromeDriver chrome = new OpenQA.Selenium.Chrome.ChromeDriver(chromeoptions);

score 2 · Answer 16 · answered Jul 14 '10 at 19:29

2

You can use Selenium Emulation in WebDriver:

selenium = new WebDriverBackedSelenium(driver,url);
selenium.windowMaximize();

answered Jul 14 '10 at 19:29

Sergii Pozharov

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They don't have Selenium Emulation in the C# version of webdriver. At least not yet in 2.0a4 (just saw they released a new version haven't checked it out yet though). However the above javascript code works great. – Reflux Jul 16 '10 at 18:55
And it also doesn't support iPhoneDriver, for example – Iulius Curt Jul 27 '11 at 12:25
Unfortunately WebDriverBackedSelenium.windowMaximize() doesn't work in Firefox 7 or Chrome 14 (although it does work in IE8). Behind the scenes it issues a window.resize() Javascript command, but both these browsers ignore it. @joey-v's solution works for Chrome. And Luke Inman-Semerau posted a solution [here](http://groups.google.com/group/webdriver/msg/dd29f1b1d1f55dc7); – Andrew Newdigate Oct 26 '11 at 11:23

score 2 · Answer 17 · answered Oct 23 '21 at 10:48

2

For Chrome

ChromeOptions options = new ChromeOptions();
IWebDriver driver = new ChromeDriver(options);
driver.Manage().Window.Maximize();

answered Oct 23 '21 at 10:48

Vishal ArorA

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score 1 · Answer 18 · answered Sep 17 '13 at 18:47

For Webdriverjs (node.js), the following maximizes chrome window.

var webdriver = require('selenium-webdriver');
var driver = new webdriver.Builder().
withCapabilities(webdriver.Capabilities.chrome()).build();
driver.manage().window().maximize();
driver.get('hxxp://localhost:8888');

score 1 · Answer 19 · answered Sep 03 '10 at 15:31

There is a function that you can use to maximize the window in Python which is window_maximize(). And this is how I'm using it.Hope this helps -

from selenium import selenium
sel = selenium('localhost', 4444, '*firefox', 'http://10.77.21.67/')
sel.start()
sel.open('/')
sel.wait_for_page_to_load(60000)
#sel.window_focus()
sel.window_maximize()
png = sel.capture_screenshot_to_string()
f = open('screenshot.png', 'wb')
f.write(png.decode('base64'))
f.close()
sel.stop()

score 1 · Answer 20 · answered Feb 24 '17 at 06:43

1

This option is fine for me :

ChromeOptions options = new ChromeOptions();
options.addArguments("start-fullscreen");

This option works on all OS.

answered Feb 24 '17 at 06:43

Sagar007

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spartan · Answer 21 · 2017-02-27T03:03:12.183

The below line of code would maximize IE, Chrome and Mozilla

driver.manage().window().maximize();

The above line of code and other workarounds mentioned in the post did not work for NodeWebKit browser, so as a workaround i had to use native C# code as mentioned below:

public static void MaximiseNWKBrowser(IWebDriver d)
        {
            var body = UICommon.GetElement(By.TagName("body"), d);
            body.Click();
            string alt = "%";
            string space = " ";
            string down = "{DOWN}";
            string enter = "{ENTER}";
            SendKeys.SendWait(alt + space);
            for(var i = 1; i <= 6; i++)
            {
                SendKeys.SendWait(down);
            }
            SendKeys.SendWait(enter);            
        }

So this workaround basically uses "ALT+SPACE" to bring up the browser action menu to select "MAXIMIZE" from the options and presses "ENTER"

JustBeingHelpful · Answer 22 · 2012-02-10T17:17:07.610

C# client drivers:

driver = new FirefoxDriver(firefoxProfile);
driver.Manage().Window.Size = new System.Drawing.Size(System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width+10, System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height+10);

===> also add a reference to the .NET assembly "System.Windows.Forms"

... the only problem is that it's not positioned correctly
... please comment if you can correct this

score 1 · Answer 23 · answered Mar 20 '12 at 16:32

Here's what worked for me in C#, firefoxDriver is global to the class:

in the usings:

using System.Drawing;
using System.Windows.Forms;

in the code:

this.firefoxDriver = new FirefoxDriver();
this.firefoxDriver.Manage().Window.Position = new Point(0, 0);
this.firefoxDriver.Manage().Window.Size = new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);

score 0 · Answer 24 · edited May 17 '12 at 16:40

0

Through the below code i'm able to maximize the window,

((JavascriptExecutor) driver).executeScript("if(window.screen){
    window.moveTo(0, 0);
    window.resizeTo(window.screen.availWidth, window.screen.availHeight);
    };");

edited May 17 '12 at 16:40

Perception

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answered May 17 '12 at 08:57

Rajagopal

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score 0 · Answer 25 · answered Dec 11 '12 at 05:09

0

This is working fine for me.

Capybara.current_session.driver.browser.manage.window.resize_to(1800, 1000)

answered Dec 11 '12 at 05:09

suresh gopal

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score 0 · Answer 26 · edited Oct 24 '13 at 02:31

I tried many of the answers above, but none work well. My chrome driver version is 2.7 and Iam using selenium-java vesion is 2.9.0. The official document suggests using:

var capabilities = new DesiredCapabilities();
var switches = new List<string>
                       {
                           "--start-maximized"
                       };
capabilities.SetCapability("chrome.switches", switches);    
new ChromeDriver(chromedriver_path, capabilities);

The above also does not work. I checked the chrome driver JsonWireProtocol: http://code.google.com/p/selenium/wiki/JsonWireProtocol

The chrome diver protocol provides a method to maximize the window:

/session/:sessionId/window/:windowHandle/maximize,

but this command is not used in selenium-java. This means you also send the command to chrome yourself. Once I did this it works.

score 0 · Answer 27 · answered Jul 26 '17 at 11:58

0

Chrome driver already support:

Java:

webDriver = new ChromeDriver();
webDriver.manage().window().maximize();

answered Jul 26 '17 at 11:58

Viktor Chmel

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score 0 · Answer 28 · answered Feb 15 '18 at 13:09

For me, none of the solutions above worked when working with Selenium Web Driver C# + Chrome:

window.resizeTo(1024, 768); - I want to use the whole screen
--start-maximized - it is ignored
driver.manage().window().maximize(); - does not work because it requires some extension and I am not allowed to use Chrome extensions

I managed to get it working using InputSimulator:

var inputSim = new InputSimulator();
// WinKey + UP = Maximize focused window
inputSim.Keyboard.ModifiedKeyStroke(VirtualKeyCode.LWIN, VirtualKeyCode.UP);

Houssin Boulla · Answer 29 · 2020-05-09T15:49:05.337

0

You can try with this code to maximize chrome window.

ChromeOptions options = new ChromeOptions();
options.addArguments("--window-size=1920,1080");

WebDriver driver = new ChromeDriver(options);

edited May 09 '20 at 15:49

answered May 08 '20 at 13:07

Houssin Boulla

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While it’s acceptable to provide code-only answers, it’s often more useful for the community if you can also provide an explanation of the code and help people understand why it addresses the problem. That often reduces the amount of follow-up questions, and can really help new developers understand the underlying concepts. That's especially important here, where there's already 27 other answers; it's worth calling out what sets your approach apart from the existing answers. Would you mind updating your question with additional detail? – Jeremy Caney May 08 '20 at 18:20

How to maximize the browser window in Selenium WebDriver (Selenium 2) using C#?

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