How can selenium web driver get to know when the new window has opened and then resume its execution

Question

I am facing an issue in automating a web application using selenium web driver.

The webpage has a button which when clicked opens a new window. When I use the follow

Answer 1

I use this to wait for window to be opened and it works for me.

C# code:

public static void WaitUntilNewWindowIsOpened(this RemoteWebDriver driver, int expectedNumberOfWindows, int maxRetryCount = 100)
    {
        int returnValue;
        bool boolReturnValue;
        for (var i = 0; i < maxRetryCount; Thread.Sleep(100), i++)
        {
            returnValue = driver.WindowHandles.Count;
            boolReturnValue = (returnValue == expectedNumberOfWindows ? true : false);
            if (boolReturnValue)
            {
                return;
            }
        }
        //try one last time to check for window
        returnValue = driver.WindowHandles.Count;
        boolReturnValue = (returnValue == expectedNumberOfWindows ? true : false);
        if (!boolReturnValue)
        {
            throw new ApplicationException("New window did not open.");
        }
    }

And then i call this method in the code

Extensions.WaitUntilNewWindowIsOpened(driver, 2);