无法在Selenium Webdriver上单击按钮（元素）

Question

Not able to click Button(element) on Selenium webdriver. It's showing no such element exception.

HTML:

<button id="datepicker-354-7412-title" class="btn btn-default btn-sm uib-title" tabindex="-1" ng-disabled="datepickerMode === maxMode" ng-click="toggleMode()" type="button" aria-atomic="true" aria-live="assertive" role="heading">
    <strong class="ng-binding">August 2016</strong>
</button>

Java:

driver.findElement(By.xpath("//*[@id='flip-card']/div[2]/div/div[2]/div[2]/div[1]/div/div[2]/i")).click();
driver.manage().timeouts().implicitlyWait(05, TimeUnit.SECONDS);
//driver.findElement(By.xpath("//ul[@class='uib-datepicker-popup dropdown-menu ng-scope']/li/div/table/thead/tr/th/button[@id='datepicker-758-2620-title']/strong")).click();
//driver.findElement(By.xpath(".//*[@id='datepicker-961-3767-title']")).click();
//WebElement mm=driver.findElement(By.id("datepicker-1164-5186-title"));
//mm.click();
/*WebElement element=driver.findElement(By.xpath("//*[@id='datepicker-354-7412-title']"));
JavascriptExecutor executor = (JavascriptExecutor)driver;
executor.executeScript("arguments[0].click()", element); */
driver.findElement(By.xpath("//button[@id='datepicker-354-7412-title']/strong")).click();

Answer 1

The id might be dynamic, try to locate the button by partial id that contains datepicker and title

driver.findElement(By.cssSelector("[id*='datepicker'][id*='title']")).click();

You can also use explicit wait to make sure the button exist/visible before clicking on it

WebDriverWait wait = new WebDriverWait(driver, 10);

// visible
WebElement button = wait.until(ExpectedConditions.visibilityOfElementLocated(By.cssSelector("[id*='datepicker'][id*='title']")));
button.click();

// or exist
WebElement button = wait.until(ExpectedConditions.presenceOfElementLocated(By.cssSelector("[id*='datepicker'][id*='title']")));
button.click();

Answer 2

这应该工作：

driver.findElement(By.id("datepicker-354-7412-title")).click();

Answer 3

Have you tried putting your xpath in firepath and checking if its pointing to what you want?

have you tried using

//strong[@class='ng-binding'] as your xpath?

let know if this helps?

Answer 4

Find xpath using firefox addon firebug: - inspect element - right click on element and copy xpath

Firebug's xpath generator is really good and the path generated generally works on other browsers.

Hope that helps.