Scrolling is nothing but moving the screen in horizontal and vertical direction.

How to Scroll Up or Down in Selenium?

If a particular element is not visible in current web application window because of which we need scrolling to view the element in a particular direction .

1) Vertical Scrolling: It can be performed when we try to scroll the web page in downward direction with its pixels.The syntax for vertical scrolling is as below:

JavascriptExecutor js = (JavascriptExecutor) driver;  
js.executeScript(Script,Arguments); 

• Open a web application www.code2test.com
• Click to selenium menu.
• Now perform the vertical scrolling.

package SeleniumArchitecture;
import java.util.Base64;
import java.util.Iterator;
import java.util.Set;
import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.chrome.ChromeDriver;
public class Scrolling_using_selenium {
public static void main(String[] args) throws InterruptedException {// System property of the Chrome driver

System.setProperty( "webdriver.chrome.driver","C:\\Users\\XXXXX\\Desktop\\Eclipse_Installer\\GeckoDriver\\chromedriver.exe");	  
// Create oject of chrome driver WebDriver driver = new ChromeDriver();
 Thread.sleep(3000);       
 ChromeDriver    driver= new ChromeDriver();	  
 driver.manage().window().maximize(); Thread.sleep(3000);
 driver.get("https://code2test.com/");
 //click to selenium menu
 driver.findElement(By.xpath("//*[@id='menu-post-1']/li[3]/a")).click();
 Thread.sleep(3000);
 JavascriptExecutor js = (JavascriptExecutor) driver;
 //Scroll vertical direction 100 pixel 
 js.executeScript("window.scrollBy(0,1000)");		
	}
}

ScrollIntoView():This code will scroll in the web page until the particular element gets visible to the current page. It keeps on scrolling in the page till the visibility on the screen. The Syntax of ScrollIntoView() is below:

JavascriptExecutor js = (JavascriptExecutor) driver; 
js.executeScript("arguments[0].scrollIntoView();",Element );

Lets consider a scenario to perform vertical scrolling:

• Open a web application www.code2test.com
• Click to selenium menu.
• Now perform the vertical scrolling and .

In the above code “selectFromDateTitle” is the locator of an element.

“argument[0]” is the index of page which stars from “0”

What is Horizontal Scrolling?

2) Horizontal scrolling: In horizontal scrolling the scrolling is performed on left to right Or right to left on web page, the horizontal scrolling can be done by coding by providing the x-axis co-ordinates on ScrollBy( ) method. Let see the syntax below.

executeScript(“window.scrollBy(x-pixels,y-pixels)”);

Also horizontal scrolling can be performed by ScrollIntoView() method, where an scrolling is performed till the element is available on the current page.

JavascriptExecutor js = (JavascriptExecutor) driver; 
js.executeScript("arguments[0].scrollIntoView();",Element );