Selenium: FindsBy with collection

Question

I am a beginner in testing and have a question. How can I correctly use ReadOnlyCollection<IWebElement>if I use attribute FindsBy . My collection is always null after started test. Heres is my code in C#:

        [FindsBy(How = How.Name, Using = "role")]
        public ReadOnlyCollection<IWebElement> radPercentage { get; }

and here is testing web: http://testwisely.com/demo/survey

I want to do something like this: radPercentage[2].Click();

Answer 1

You need to call InitElements before using the collection. Pass the driver and an instance of a class containing the FindsBy properties (in my code "this").

IWebDriver driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://testwisely.com/demo/survey");
PageFactory.InitElements(driver, this);
IWebElement radio = this.radPercentage[2];

The method InitElements is expecting the property to be of type IWebElement or IList of IWebElement

[FindsBy(How = How.Name, Using = "role")]
public IList<IWebElement> radPercentage;