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#?

Answer 1

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);

Answer 2

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

Answer 3

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"

Answer 4

Chrome driver already support:

Java:

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

Answer 5

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);

Answer 6

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);