Using selenium webdriver for automation but Not able to click on element

Question

I am performing automation on my website using selenium webdriver. I am able to login into website but not able to perform click operation on element. My code attempts are:

WebElement add = BrowserUtilities.driver.findElement(By.xpath("//button[@class = 'btn btn-primary btn-lg']"));
add.click();

I also tried with javascript executor as below :

JavascriptExecutor js = (JavascriptExecutor) BrowserUtilities.driver;
js.executeScript("argument[0].click()", add);

now I am getting exception in console like:

FAILED CONFIGURATION: @BeforeClass launchBrowserTest
org.openqa.selenium.WebDriverException: unknown error: argument is not defined

Please suggest me if any other solution.

Answer 1

It's because of javascript and ajax call present you can try this code :

Find Element using webdriver wait as :

 WebDriverWait wait=new WebDriverWait(driver,50 );           
    WebElement element = wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("//button[@type='Cancel']")));

Then perfrom click operation using Actions class as :

Actions actions = new Actions(driver);
actions.moveToElement(element).click().build().perfrom();

Answer 2

Try with it.

 WebDriverWait wait = new WebDriverWait(driver,9000);   
 WebElement button=wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//button[@class = 'btn btn-primary btn-lg']")));
    button.click();