Compound class names are not supported. Consider searching for one class name and filtering the results

c#, selenium, selenium-webdriver, webdriver

Solution

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

Problem

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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