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Not able scroll down the page using selenium - nUnit, C#

I am getting the following error while trying to click on a button which is present at the bottom of the page. Looks like this error is coming because that button is not visible at the first point, if we scroll the page down then only selenium is able to identify that button.
OpenQA.Selenium.ElementClickInterceptedException : element click intercepted: Element <span>...</span> is not clickable at point (1113, 659)..
I have tried with following code to scroll down the web page but it does not help me.
Actions actions = new Actions(driver);
actions.SendKeys(Keys.ArrowDown);
If I try with element.Sendkeys(Keys.ArrowDown) then also its not helping.
what would be the correct approach here?

You should use Actions class to perform scrolling to the element in this way
Actions actions = new Actions(driver);
var element = driver.FindElement(...);
actions.MoveToElement(element);
actions.Perform();
substitute ... with the selector for the element.
There is also another method relying on javascript
IJavaScriptExecutor js = (IJavaScriptExecutor) driver;
js.ExecuteScript("arguments[0].scrollIntoView();", element);

Selenium - Wait for OutOfBound element C#

I use Selenium C# binding and I want to click over the addToCart button.
First, I'm waiting the button appears on the page with ExpectedConditions.ToBeClickable.
Then, I need to scroll down the page to be able to click over the button. I used the Selenium.Interactions class but it work as well with js executor.
private By addToCartBy = By.XPath("/html/body/div[2]/div/div/div[1]/div/div[3]/div[2]/div/section[1]/div[2]/aside/div/div[2]/div/div[2]/div/button");
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(5));
IWebElement addToCart = wait.Until(ExpectedConditions.ElementToBeClickable(addToCartBy));
Actions action = new Actions(driver);
action.MoveToElement(addToCart);
action.Perform();
addToCart.Click();
When I perform this test with Chrome driver, the page loads and the navigator scroll down to the element addToCart and click it but I'm unable to get the button working properly.
When I use Firefox driver, it raise this exception:
OpenQA.Selenium.WebDriverException : '(1435, 998) is out of bounds of viewport width (1920) and height (966)'and I'm unable to click over the button
Most of the time, the click will be performed but no action will follow from this. If I want the button to work properly (go the the cart), I need to put a System.Threading.Thread.Sleep(2000) to be effective or a Console.ReadLine(). Even if I disable the automation click and I do it manually, the button don't always proceed.
How can I make sure my element addToCart is displayed after I moved to Element? in a way to click it when he's ready.
Thank you, Eelke Johnson

For some of the scenarios, you can use not
IWebElement.Click();
but
IWebElement.SendKeys(Keys.Enter);
I had some scenarios, where just Click() didn't work for me.Maybe this will help in your situation.

You need to consider a couple of things.
To invoke MoveToElement(), ExpectedConditions as ElementToBeClickable() is overkill. Instead you can do away with ElementIsVisible().
While invoking Click() as per best practices you need to invoke WebDriverWait inconjunction with ExpectedConditions as ElementToBeClickable().
So effectively, your code block will be:
Actions action = new Actions(driver);
action.MoveToElement(new WebDriverWait(driver, TimeSpan.FromSeconds(10)).Until(ExpectedConditions.ElementIsVisible(By.XPath("/html/body/div[2]/div/div/div[1]/div/div[3]/div[2]/div/section[1]/div[2]/aside/div/div[2]/div/div[2]/div/button")))).Perform();
new WebDriverWait(driver, TimeSpan.FromSeconds(10)).Until(ExpectedConditions.ElementToBeClickable(By.XPath("/html/body/div[2]/div/div/div[1]/div/div[3]/div[2]/div/section[1]/div[2]/aside/div/div[2]/div/div[2]/div/button"))).Click();

selenium locate element with xpath

Firebug gives me this for an element inputfiled I want to fill in:
<label for="form:composite:tabView:ssn">Fødselsnummer</label>
Tried this in my selenium script:
WebElement velger = driver.findElement(By.xpath("//input[#id='form:composite:tabView:ssn']"));
Next I do this:
velger.sendKeys(new String[]{"27017833176"});
And then:
WebElement sokknapp = driver.findElement(By.xpath("//*[#id=\"form:composite:tabView:searchSSN\"]"));
sokknapp.click();
To click the serach button.
However when looking at the browser during replay I can se that the "sendkeys" does not work but the button click does work (the inputfield gets red because I press the button for searching without content in the inputfield).
Is there something wrong with this:
velger.sendKeys(new String[]{"27017833176"});

Unable to locate element might means that you need some time to wait before handle element:
var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
var velger = wait.Until(ExpectedConditions.ElementIsVisible(By.Id("form:composite:ta‌​b‌​‌​View:ssn")));
Also I'm not sure about correctness of velger.sendKeys(new String[]{"27017833176"});. Try to send simple string:
velger.sendKeys("27017833176");

The problem (or solution) was that I missed i clear() function before sendkeys.
velger.clear();
velger.sendKeys("27017833176");

Can't move to a webelement?

Obviously selenium doesn't interact with an webelement until it's in the view, and selenium automatically tries to scroll to that webelement. But in my case when I try to click a particular button it doesn't scroll it in to view, it simply scrolls to a random place in the page.
Objective:
scrolls the webelement into view, and then click that element.
Methods I've already used:
element.Click(); //method 1
Actions actions = new Actions(driver); // method 2
actions.MoveToElement(element);
actions.Perform();
IJavaScriptExecutor js = driver as IJavaScriptExecutor; //method 3
js.ExecuteScript("$('#Id_Body' + element_id)[0].scrollIntoView( true );"); //because the driver scrolls to a random place I use this to get back to the top of the page.
int Y = element.Location.Y, X = element.Location.X;
js.ExecuteScrip($"window.scrollBy( {X}, {Y};");
I'm using selenium 2.48.0, firefoxDriver 43.0.1
Is there a fix for this issue? if someone knows of an older version of selenium/firefox that works fine with one of these methods please tell me, thanks.

Try double MoveToElement
Actions action = new Actions(driver);
action.MoveToElement(elementParent).MoveToElement(elementToClick).Build().Perform();
First move to the element area and than to the element you want to click.

Why don't use scrollIntoView() directly:
js.ExecuteScript("arguments[0].scrollIntoView();", element);

Selenium - Force click on non-visible element

I'm using C# Selenium.WebDriver.2.44.0
On some 3rd party site I'm trying to press an element and get this:
var myWebElement = Driver.FindElement(By.XPath("//a[.=' some value']
myWebElement.Click();
I get the element and on click I get this:
{"element not visible\n (Session info: chrome=39.0.2171.95)\n (Driver info: chromedriver=2.9.248315,platform=Windows NT 6.1 SP1 x86_64)"}
The item is within some sub menu revealing after I successfully press the parent menu. Also put 5 seconds sleep to be safe that the accordion is well seen (and it is well seen in my eyes).
Question - on 3rd party site how can I force the click on this item?

You could try bringing it to the top by changing the z-index with driver.execute_script().

You could use the inbuilt functions and WebDriver waits
var myWebElement = Driver.FindElement(By.XPath("//a[.=' some value']
WebDriverWait wait = new WebDriverWait(Driver.FindElement, TimeSpan.FromSeconds(10));
var element = wait.Until(ExpectedConditions.ElementIsVisible(myWebElement));
Actions action = new Actions(Driver.FindElement);
action.MoveToElement(element).Perform();
myWebElement.Click();

The problem is that Selenium executes actions one after another, but something like "show a sub menu" is lost between actions.
You're likely going to have to use an Actions chain for this:
Actions action = new Actions(Driver);
action.MoveToElement(Driver.FindElement(By(ParentElementSelector)))
.click()
.MoveToElement(Driver.FindElement(By.XPath("//a[.=' some value'])))
.click()
.Build()
.Perform();
This will move to the parent element, click, then move to the element you wish to find, then click. It will perform all of these as one action, which should be able to click the sub menu element.

When an element is not visible u can try this...It works for me
IWebElement WEHiddenID = driver.FindElement(By.Id(""));
WEHiddenID.SendKeys(OpenQA.Selenium.Keys.Enter);