Compound class names are not supported. Consider searching for one class name and filtering the results
Solution 1
No, your own answer isn't the best one in terms of your question.
Imagine you have HTML like this:
<div class="bighead ght">LEAD DELIVERY MADE HARD</div>
<div class="bighead crb">LEAD DELIVERY MADE EASY</div>
driver.FindElement(By.ClassName("bighead"))
will find both and return you the first div
, instead of the one your want. What you really want is something like driver.FindElement(By.ClassName("bighead crb"))
, but like you said in your question, this won't work as you need another way to find elements by compound class names.
This why most people use more powerful By.CssSelector
or By.XPath
. Then you have:
CssSelector (the best):
driver.FindElement(By.CssSelector(".bighead.crb")); // flexible, match "bighead small crb", "bighead crb", "crb bighead", etc.
driver.FindElement(By.CssSelector("[class*='bighead crb']")); // order matters, match class contains "bighead crb"
driver.FindElement(By.CssSelector("[class='bighead crb']")); // match "bighead crb" strictly
XPath (the better):
driver.FindElement(By.XPath(".//*[contains(@class, 'bighead') and contains(@class, 'crb')]")); // flexible, match "bighead small crb", "bighead crb", "crb bighead", etc.
driver.FindElement(By.XPath(".//*[contains(@class, 'bighead crb')]")); // order matters, match class contains string "bighead crb" only
driver.FindElement(By.XPath(".//*[@class='bighead crb']")); // match class with string "bighead crb" strictly
Solution 2
Figured out this problem, you have to search by:
driver.FindElement(By.ClassName("bighead")).Text.Trim().ToString(); //instead of
driver.FindElement(By.ClassName("bighead crb")).Text.Trim().ToString();
any space in html class represents a new class name so just search by the first word.
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Rahul Lodha
Updated on September 15, 2022Comments
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Rahul Lodha over 1 year
I am using driver.findelement by.classname method to read an element on firefox browser but i am getting "Compound class names are not supported. Consider searching for one class name and filtering the results." exception
here is my code
driver.FindElement(By.ClassName("bighead crb")).Text.Trim().ToString() //and here is how the html of browser looks like <form action="#" id="aspnetForm" onsubmit="return false;"> <section id="lx-home" style="margin-bottom:50px;"> <div class="bigbanner"> <div class="splash mc"> <div class="bighead crb">LEAD DELIVERY MADE EASY</div> </div> </div> </section> </form>
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Derek W over 10 yearsCSS Selectors are definitely the way to go on this one. They are very powerful.
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Rahul Lodha over 10 years@user1177636 thank you for this example. I will surely implement it in my automated test scripts soon.
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Rahul Lodha over 10 yearsi tried to implement both CssSelector and XPath. For some reason CssSelector is not able to find the element, but XPath works. I think i will use XPath going forward. Thank You for your help! :)