How to implement a WebDriverEventListener in C#?

Question

How to implement WebDriverEventListener in C#?

I have no problem doing it in java importing:

import org.openqa.selenium.support.events.A         


        

Answer 1

This link gives a nice explanation of event handling for selenium:

The events mechanism in WebDriver is composed of two major objects:

EventFiringWebDriver - A wrapper of the normal WebDriver API but adds the support of event triggering.
WebDriverEventListener - An interface with pre-defined events that EventFiringWebDriver instance will trigger.

Implementation of Event handling in Selenium as Class Diagram:

Step 1: Create a class implementing WebDriverEventListener.

public class DefaultWebDriverEventListener implements WebDriverEventListener {

    public void beforeNavigateTo(String url, WebDriver driver) {
        System.out.println("Driver will navigate to:" + url);
    }

   ...
}

Step 2: Initalize event-firing driver using the webdriver instance you have created

//initalize FireFox webdriver instance
WebDriver driver = new FirefoxDriver();
//initalize event-firing driver using Firefox webdriver instance.
EventFiringWebDriver eventDriver = new EventFiringWebDriver(driver); 

Step 3: Register the listener

//register event listener to even-firing webdriver instance
eventDriver.register(listener);

Now all the defined events in your implemented class will be executed when the selenium is executing. For instance, taking screenshot on exception etc.

Step 4: You can also unregister the listener if you want to stop firing events when selenium

eventDriver.unregister(listener);