I want to check if an element exists in Selenium, and if it does, assign it to a name.
Right now I have something that looks like this:
IWebElement size9 = driver.FindElement(By.CssSelector("a[data-value*='09.0']"));
However, when that element that has the value of 9 does not exist, it returns an error. Is there a way I can check to see if it exists, or something of that sort?
There are several options. I recommend these.
1. Create a method or web driver extension.
public static IWebElement FindElementIfExists(this IWebDriver driver, By by)
{
var elements = driver.FindElements(by);
return (elements.Count >=1) ? elements.First() : null;
}
// Usage
var element = driver.FindElementIfExists(By.CssSelector("a[data-value*='09.0']"));
2. Count the element, get it if there are 1 or more elements.
By by = By.CssSelector("a[data-value*='09.0']");
var element = driver.FindElements(by).Count >= 1 ? driver.FindElement(by) : null;
Then you can check if(element != null) { ... }
Java mixed with JavaScript. Does Java have a new feature like auto-detecting a type of a variable? Something like auto in C++? And what does this keyword near the type of the first argument mean?
You should be able to do something like:
//Method :
public static bool IsElementPresent_byCssSelector(string elementName)
{
try { Driver.FindElement(By.CssSelector(elementName)); }
catch (NoSuchElementException) { return false; }
catch (StaleElementReferenceException) { return false; }
return true;
}
//Usage :
var test = driver.IsElementPresent_byCssSelector("a[data-value*='09.0']");
if(test)
{
//do something
}
Using Dazed's reply, I do a little modification to pass any selector.
//Method :
public bool ElementExists(By by)
{
try
{
Driver.FindElement(by);
}
catch (NoSuchElementException)
{
return false;
}
catch (StaleElementReferenceException)
{
return false;
}
return true;
}
//Usage:
if (ElementExists(By.XPath("...")))
...
if (ElementExists(By.Id("...")))
...
if (ElementExists(By.CssSelector("...")))
...