How to search for element in dynamic loading grid on scroll using selenium webdriver?

Note: Do not forget to give some sleep time after each scroll.

I have automated one sample grid, and have attached the sample working code below. Hope this helps in figuring out problem:

import java.io.IOException;import org.openqa.selenium.By;import org.openqa.selenium.JavascriptExecutor;import org.openqa.selenium.Keys;import org.openqa.selenium.WebDriver;import org.openqa.selenium.WebElement;import org.openqa.selenium.firefox.FirefoxDriver;public class ScrollGrid{    public static void main(String[] args) throws IOException, InterruptedException{        WebDriver driver = new FirefoxDriver();        driver.get("https://demos.devexpress.com/ASPxGridViewDemos/PagingAndScrolling/VirtualPaging.aspx");        driver.manage().window().maximize();        //Clicking on an element inside grid to get it into focus        driver.findElement(By.xpath("//*[@id='ContentHolder_ASPxGridView1_DXMainTable']//td[.='9/30/1994']")).click();        WebElement ele=null;        int flag=0;        int count=0;        do{            try{                //element to search for while scrolling in grid                ele = driver.findElement(By.xpath("//*[@id='ContentHolder_ASPxGridView1_DXMainTable']//td[.='3/28/1996']"));                flag=1;            } catch(Throwable e){                //scrolling the grid using the grid's xpath                driver.findElement(By.xpath("//*[@id='ContentHolder_ASPxGridView1']//div[2]")).sendKeys(Keys.PAGE_DOWN);                Thread.sleep(3000);            }        }while((flag==0) || ((++count)==250));        if(flag==1){            System.out.println("Element has been found.!!");        }else{            System.out.println("Element has not been found.!!");        }        highlightElement(driver, ele); //For highlighting the element        Thread.sleep(5000L); //to check if the element scrolled to is highlighted.        driver.close();    }    //For highlighting the element to be located after scroll    public static void highlightElement(WebDriver driver, WebElement ele) {        try        {            for (int i = 0; i < 3; i++)             {                JavascriptExecutor js = (JavascriptExecutor) driver;                js.executeScript("arguments[0].setAttribute('style', arguments[1]);",ele, "color: red; border: 2px solid red;");            }        }        catch(Throwable t)        {            System.err.println("Error came : " +t.getMessage());        }    }}

Note: This works correctly now. It will come out of the loop in case the element is found, or if not found after 250 scrolls. '250' is a relative number. You can change it to the number of scrolls you want to perform on the grid.