[java] Page scroll up or down in Selenium WebDriver (Selenium 2) using java

I have written the following code in Selenium 1 (a.k.a Selenium RC) for page scrolling using java:

selenium.getEval("scrollBy(0, 250)");

What is the equivalent code in Selenium 2 (WebDriver)?

Javascript executor always does the job perfectly:

((JavascriptExecutor) driver).executeScript("scroll(0,300)");

where (0,300) are the horizontal and vertical distances respectively. Put your distances as per your requirements.

If you a perfectionist and like to get the exact distance you like to scroll up to on the first attempt, use this tool, MeasureIt. It's a brilliant firefox add-on.

JavascriptExecutor js = ((JavascriptExecutor) driver);

Scroll down:

js.executeScript("window.scrollTo(0, document.body.scrollHeight);");

Scroll up:

js.executeScript("window.scrollTo(0, -document.body.scrollHeight);");

JavascriptExecutor jse = ((JavascriptExecutor) driver);
jse.executeScript("window.scrollTo(0, document.body.scrollHeight)");

This code works for me. As the page which I'm testing, loads as we scroll down.

I did not want to use JavaScript, or any external libraries, so this was my solution (C#):

IWebElement body = Driver.FindElement(By.TagName("body"));

IAction scrollDown = new Actions(Driver)
    .MoveToElement(body, body.Size.Width - 10, 15) // position mouse over scrollbar
    .ClickAndHold()
    .MoveByOffset(0, 50) // scroll down
    .Release()
    .Build();

scrollDown.Perform();

You can also easily make this an extension method for scrolling up or down on any element.

Thanks for Ripon Al Wasim's answer. I did some improvement. because of network problems, I retry three times until break loop.

driver.get(url)
# Get scroll height
last_height = driver.execute_script("return document.body.scrollHeight")
try_times = 0
while True:
    # Scroll down to bottom
    driver.execute_script("window.scrollBy(0,2000)")

    # Wait to load page
    time.sleep(scroll_delay)
    # Calculate new scroll height and compare with last scroll height
    new_height = driver.execute_script("return document.body.scrollHeight")

    if last_height == new_height:
        try_times += 1

    if try_times > 3:
        try_times = 0
        break
    last_height = new_height

1. If you want to scroll the page vertically to perform some action, you can do it using the following JavaScript. ((JavascriptExecutor)driver).executeScript(“window.scrollTo(0, document.body.scrollHeight)”);

       Where ‘JavascriptExecutor’ is an interface, which helps executing JavaScript through Selenium WebDriver. You can use the following code to import.
   

import org.openqa.selenium.JavascriptExecutor;

2.If you want to scroll at a particular element, you need to use the following JavaScript.

WebElement element = driver.findElement(By.xpath(“//input [@id=’email’]”));((JavascriptExecutor) driver).executeScript(“arguments[0].scrollIntoView();”, element);

Where ‘element’ is the locator where you want to scroll.

3.If you want to scroll at a particular coordinate, use the following JavaScript.
((JavascriptExecutor)driver).executeScript(“window.scrollBy(200,300)”); Where ‘200,300’ are the coordinates.

4.If you want to scroll up in a vertical direction, you can use the following JavaScript. ((JavascriptExecutor) driver).executeScript(“window.scrollTo(document.body.scrollHeight,0)”);

5. If you want to scroll horizontally in the right direction, use the following JavaScript. ((JavascriptExecutor)driver).executeScript(“window.scrollBy(2000,0)”);

6. If you want to scroll horizontally in the left direction, use the following JavaScript. ((JavascriptExecutor)driver).executeScript(“window.scrollBy(-2000,0)”);

1.To scroll page to the bottom use window.scrollTo(0,document.body.scrollHeight) as parameter

//Code to navigate to bottom

WebDriver driver = new ChromeDriver();
JavascriptExecutor jsExecuter = (JavascriptExecutor)driver;
jsExecuter.executeScript(window.scrollTo(0,document.body.scrollHeight));

2.To scroll page to the top use window.scrollTo(0,document.body.scrollTop) as parameter

//Code to navigate to top

WebDriver driver = new ChromeDriver();
JavascriptExecutor jsExecuter = (JavascriptExecutor)driver;
jsExecuter.executeScript(window.scrollTo(0,document.body.scrollTop));

3.To scroll page to the Left use window.scrollTo(0,document.body.scrollLeft) as parameter

//Code to navigate to left

WebDriver driver = new ChromeDriver();
JavascriptExecutor jsExecuter = (JavascriptExecutor)driver;
jsExecuter.executeScript(window.scrollTo(0,document.body.scrollLeft));

4.To scroll to certain point window.scrollTo(0,500) as parameter

//Code to navigate to certain point e.g. 500 is passed as value here

WebDriver driver = new ChromeDriver();
JavascriptExecutor jsExecuter = (JavascriptExecutor)driver;
jsExecuter.executeScript(window.scrollTo(0,500));

To check the navigation directly in browser , open developers tool in browser and navigate to console. Execute the command on console window.scrollTo(0,400)

You should add a scroll to the page to select all elements using Selenium.executeScript("window.scrollBy(0,450)", "").

If you have a large list, add the scroll several times through the execution. Note the scroll only go to a certain point in the page for example (0,450).

JavascriptExecutor is best to scroll down a web page window.scrollTo Function in JavascriptExecutor can do this

JavascriptExecutor js = ((JavascriptExecutor) driver);
js.executeScript("window.scrollTo(0,100"); 

Above code will scroll down by 100 y coordinates

Scrolling to the bottom of a page:

JavascriptExecutor js = ((JavascriptExecutor) driver);
js.executeScript("window.scrollTo(0, document.body.scrollHeight)");

Try this

        Actions dragger = new Actions(driver);
        WebElement draggablePartOfScrollbar = driver.findElement(By.xpath("//*[@id='jobreslist_outercontainer']/div/div[2]/div"));

        // drag downwards
        int numberOfPixelsToDragTheScrollbarDown = 50;
        for (int i=10;i<500;i=i+numberOfPixelsToDragTheScrollbarDown){
            try{
        // this causes a gradual drag of the scroll bar, 10 units at a time
        dragger.moveToElement(draggablePartOfScrollbar).clickAndHold().moveByOffset(0,numberOfPixelsToDragTheScrollbarDown).release().perform();
        Thread.sleep(1000L);
            }catch(Exception e1){}
        } 

        // now drag opposite way (downwards)
        numberOfPixelsToDragTheScrollbarDown = -50;
        for (int i=500;i>10;i=i+numberOfPixelsToDragTheScrollbarDown){
        // this causes a gradual drag of the scroll bar, -10 units at a time
        dragger.moveToElement(draggablePartOfScrollbar).clickAndHold().moveByOffset(0,numberOfPixelsToDragTheScrollbarDown).release().perform();
        Thread.sleep(1000L);
        }

There are many ways to scroll up and down in Selenium Webdriver I always use Java Script to do the same.

Below is the code which always works for me if I want to scroll up or down

 // This  will scroll page 400 pixel vertical
  ((JavascriptExecutor)driver).executeScript("scroll(0,400)");

You can get full code from here Scroll Page in Selenium

If you want to scroll for a element then below piece of code will work for you.

je.executeScript("arguments[0].scrollIntoView(true);",element);

You will get the full doc here Scroll for specific Element

JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("window.scrollBy(0,250)");

This may not be an exact answer to your question (in terms of WebDriver), but I've found that the java.awt library is more stable than selenium.Keys. So, a page down action using the former will be:

Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_PAGE_DOWN);
robot.keyRelease(KeyEvent.VK_PAGE_DOWN);