Develop Reference

Webdriver wait cant find element that exists

Hello I'm a little new to selenium I'm trying to automate a page for work. The issue I'm having is that webdriver waits are not finding my elements, but I can use those elements if I comment out the wait portion. The issue seems to start after I switch the frame. Is there any additional steps I need to do after that?
Update: When I am debugging and stepping through it works fine. But never works in test run
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(120));
wait.Until(SeleniumExtras.WaitHelpers.ExpectedConditions.FrameToBeAvailableAndSwitchToIt(By.CssSelector("iframe[src='/CreditAdmin/']")));
wait.Until(SeleniumExtras.WaitHelpers.ExpectedConditions.ElementExists(By.CssSelector("input[aria-label='Filter for column']"))); //This never finds the Element
IWebElement companySearch = driver.FindElement(By.CssSelector("input[aria-label='Filter for column']")); //This works fine if I comment out previous
companySearch.SendKeys(fieldValue);

Try to change
wait.Until(SeleniumExtras.WaitHelpers.ExpectedConditions.ElementExists(By.CssSelector("input[aria-label='Filter for column']")));
to:
wait.Until(c => c.FindElement(By.CssSelector("input[aria-label='Filter for column']")));

Implicit wait Command Not Working-selenium webdriver C#

Guys, I have started to work on selenium web driver. You can assume I am a beginner. At the moment I am having difficulties in implementing the implicit wait command in my code (C#). it is not working as it should and result in an exception due to Element not found, however when I add the "Thread.Sleep(3000) the code get executed flawlessly. I have been looking for the solution all over the internet but not able to resolve the problem. Below I have mentioned sample code.
class Entrypoint
{
static void Main()
{
IWebDriver driver = new ChromeDriver();
**driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(20);**
driver.Navigate().GoToUrl("https://r1.netrevelation.com:8443/mcba-cms/pages/flight-transfer.cab");
driver.Manage().Window.Maximize();
driver.FindElement(By.Id("loginlink")).Click();
driver.FindElement(By.Id("headerSubView:inputUserName:input")).SendKeys("st001");
driver.FindElement(By.Id("headerSubView:inputPassword:input")).SendKeys("hello321" + Keys.Enter);
driver.FindElement(By.Id("dateOfFlight:input")).Click();**//This Step does not get Executed , it throws exception element not found.**
driver.FindElement(By.Id("ui-datepicker-div")).Click();
driver.FindElement(By.XPath(".//*[#id='ui-datepicker-div']/div/a[2]/span")).Click();
driver.FindElement(By.LinkText("28")).Click();
IWebElement Flightno = driver.FindElement(By.Id("selectedFlight:input"));
Flightno.SendKeys("BA901" + Keys.Enter);
IWebElement Flighttick = driver.FindElement(By.Id("flightTickImg"));
driver.Quit();
Please note that at the moment I don't want to use explicit wait, as implicit will serve my need (if it starts working). The above code Run in supersonic speed for somehow it manages to Login into the system but afterward it Fails every time reason being once Login request is made system pauses for 2-3 seconds. Please provide your comment in this regard.

As per the documentation, an Implicit Wait is to tell the WebDriver to poll the HTML DOM for a certain amount of time when trying to find an element() or find all elements() if they are not immediately available. But availability of an element in the DOM Tree doesn't guarantees that the ElementToBeClickable as you have tried in your code block. Hence you face the exception as Element not found.
Solution:
So the solution to your issue is to induce Explicit Wait i.e. WebDriverWait with ExpectedConditions clause as ElementToBeClickable which will not only confirm the availability of an element in the HTML DOM but also ensure that the Element is Clickable i.e. Element is Displayed and Enabled as follows:
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IWebElement element = wait.Until(ExpectedConditions.ElementToBeClickable(By.Id("loginlink")));

C# - Selenium: StaleElementReferenceException on any element on any webpage after refresh or page change

I'm getting a StaleElementReferenceException (Element is not attached to the page document) whenever I try to use Actions to move to an element not on the page the driver is first loaded with; however, the element shows up in both the DOM and the page source. I'm using Selenium with ChromeDriver version 2.30. I've tried running Chome in headless mode as well. I've also tried to switch the binary to Chrome beta and Chrome Canary.
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30));
wait.Until(d =>
{
try
{
IWebElement e = driver.FindElementById(ID);
builder.MoveToElement(e).Build().Perform();
builder.Click().Build().Perform();
return true;
}
catch { }
return false;
});
It tries multiple times to find the element, but never can; it hangs on MoveToElement and returns the exception. As you can see, I've already tried to wrap the whole thing in a try/catch loop; it still never gets the element. Any help would be appreciated!

Create a new Actions object. They're apparently page-specific, so the old one stops working after navigation.
builder = new Actions(driver);

using webdriverwait on a particular IWebElement

I am applying the selenium webdriverwait method to a particular IWebElement to fetch some child elements of this IWebElement when they are available. This is my code...
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IList<IWebElement> elementsA = wait.Until<IList<IWebElement>>((d) =>
{
return driver.FindElements(By.XPath("//table[#class='boxVerde']"));
});
foreach (IWebElement iwe in elementsA)
{
wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IList<IWebElement> elementsB = wait.Until<IList<IWebElement>>((d) =>
{
return iwe.FindElements(By.XPath("tr/td/div/a"));
//trying to fetch the anchor tags from the element
});
}
it keeps giving me an error saying 'element no longer attached to DOM'...I think that the webdriver wait is simply not working. Am I doing anything wrong guys? much thanks in advance

It sounds like you are suffering from a Stale Element.
Every WebElement that Selenium finds is actually a reference to a element inside the DOM
Sometimes the JavaScript used on a site will destroy and recreate an element, when this happens your existing reference becomes stale and you will see a StaleElementReferenceException (At least that's what it's called in Java land, You should be seeing something very similar).
So if you ever see a StaleElementReferenceException or a message stating that the "element no longer attached to DOM", it means that the reference to an element in the DOM that you used to have is no longer valid because the element you had a reference to has been destroyed.
This isn't always obvious visually because the original element may have been destroyed and then an identical one recreated, it is however a new element so you need to create a new reference to interact with it.
The way to create a new reference is to find the element again.
It's not totally clear from your questions, but I am assuming you are getting the issue when iterating through the list of anchor elements after finding the table. If this is the case it suggests that the table has been destroyed and recreated between the point you found the table element and then started to iterate through the anchor elements inside the table.
If this is the case you will need to find the table again, a useful trick is to wait for the table to become stale before you try and find it again. This way you can be reasonably confident that any JavaScript on the page that is destroying the table and then re-creating it has finished processing. The .NET ExpectedConditions class is not as mature as the Java ExpectedConditions class. I would suggest having a look at some of the Java ones and porting them across to .NET (It should be fairly trivial, the structure is pretty similar), of particular interest is the Java one that waits for an element to become stale.

I believe that some of the tables has been removed for the page. It will be useful to look at events on your page. You should use //table[#class='boxVerde']/tr/td/div/a xpath instead of searching inside the element.

You have to define your Webdriver wait to ignore the Exceptions until the polling time overs. The following java method polls the element util 60 seconds and returns if it is loaded else will throws a Timeout Exception. Please convert this to your language as you needed.(Sorry,i am a javaist)
public WebElement fluentWait(final By locator, WebDriver driver) {
Wait<WebDriver> wait = new FluentWait<WebDriver>(driver)
.withTimeout(60, TimeUnit.SECONDS)
.pollingEvery(1, TimeUnit.SECONDS)
.ignoring(StaleElementReferenceException.class)
.ignoring(NoSuchElementException.class);
WebElement foo = wait.until(
new Function<WebDriver, WebElement>() {
public WebElement apply(WebDriver driver) {
return driver.findElement(locator);
}
} );
return foo;}
In addition to that if you are looking for a single anchor tag element use the xpath as
iwe.FindElements(By.XPath(" //a[text()='anchor tag text']"));
or Locate your element via By.linkText("anchor tag text");
iwe.FindElements(By.linkText("anchor tag text"));

Try using this. It waits for the Elements to be present within the page.
static void ForElementsArePresent(IWebDriver wd, double waitForSeconds, By by)
{
try
{
WebDriverWait wait = new WebDriverWait(wd, TimeSpan.FromSeconds(waitForSeconds));
wait.Until(x => (x.FindElements(by).Count > 0));
}
catch (WebDriverTimeoutException)
{
Console.WriteLine("Waiting for element " + by + " to disappear timed out after " + waitForSeconds + " seconds.");
throw;
}
}

Selenium Webdriver c# without waiting for page to load

I have the following scenario:
I want to navigate to a page. Then click a button as soon as it appears(not wait for page to load ). I don't want to wait for the initial page to load as it takes a long time. My program currently is stuck until the page loads and then clicks the button.
I basically want to navigate to link and then have no wait for page and continue with my code.
Is there anyway round this?

With the latest version of the .NET bindings, you can set a page load timeout. However, there are some caveats you'll need to be aware of. First, this hasn't been implemented by all browsers. It should work for IE and Firefox, if memory serves. Secondly, you'll need to catch an exception to make that work properly, but it can be done.
// WARNING! Completely untested code written without
// the benefit of an IDE!
IWebDriver driver = new InternetExplorerDriver();
driver.Manage().Timeouts().SetPageLoadTimeout(TimeSpan.FromSeconds(1));
try
{
driver.Url = "http://your.long.loading.page.com";
}
catch (TimeoutException)
{
// NOTE: In 2.26 or later, this will be WebDriverTimeoutException
}
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IWebElement element = wait.Until<IWebElement>((d) =>
{
return d.FindElement(By.Id("yourId"));
}

IWebDriver driver = new FirefoxDriver();
driver.Url = "http://somedomain/url_that_delays_loading";
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
IWebElement myDynamicElement = wait.Until<IWebElement>((d) =>
{
return d.FindElement(By.Id("someDynamicElement"));
});
It does exactly what you want. It queries the page to find the element, catches exceptions if no element found and returns an element when found.
After that, you can manipulate the button ignoring the fact that page can be not loaded
http://seleniumhq.org/docs/04_webdriver_advanced.html

Short answer: No.
Long answer: Selenium is by default trying to simulate the real user - I know that it kinda sucks, especially at a times you need to test a deploy after deploy after deploy...
But: If real user has to wait for button to appear, then the program has to do it also...
BTW: If the button really appears among first on the page, you can try this:
search for the button by ID, xpath ... the way you do it
Catch exception (I am Java guy, so dont ask me how)
If there was error, wait short time (e.g. 200 milliseconds) and then go to 1
If not, click the button
The cycle should end also if certain amount of time passes (10s) and if so, throw exception
As stated above: Language of my choice is Java. There I can do that. But I dont know how to write that in C#