ResourcesPage.cs

public class ResourcesPage
{
    private readonly IWebDriver driver;
    private readonly string url = @"https://automatetheplanet.com/resources/";

    public ResourcesPage(IWebDriver browser)
    {
        this.driver = browser;
        PageFactory.InitElements(browser, this);
    }

    public string Url => this.url;

    [FindsBy(How = How.Id, Using = "emailId")]
    public IWebElement Email { get; set; }

    [FindsBy(How = How.Id, Using = "nameId")]
    public IWebElement Name { get; set; }

    [FindsBy(How = How.Id, Using = "downloadBtnId")]
    public IWebElement DownloadButton { get; set; }

    [FindsBy(How = How.Id, Using = "successMessageId")]
    public IWebElement SuccessMessage { get; set; }

    public IWebElement GetGridElement(string productName, int rowNumber)
    {
        var xpathLocator = string.Format("(//span[text()='{0}'])[{1}]/ancestor::td[1]/following-sibling::td[7]/span", productName, rowNumber);
        return this.driver.FindElement(By.XPath(xpathLocator));
    }

    public void Navigate() => this.driver.Navigate().GoToUrl(this.url);

    public void DownloadSourceCode(string email, string name)
    {
        this.Email.SendKeys(email);
        this.Name.SendKeys(name);
        this.DownloadButton.Click();
        var successMessage = string.Format("Thank you for downloading {0}! An email was sent to {1}. Check your inbox.", name, email);
        var waitElem = new WebDriverWait(driver, TimeSpan.FromSeconds(30));
        waitElem.Until(ExpectedConditions.TextToBePresentInElementLocated(By.Id("successMessageId"), successMessage));
    }

    public void AssertSuccessMessage(string name, string email)
    {
        var successMessage = string.Format("Thank you for downloading {0}! An email was sent to {1}. Check your inbox.", name, email);
        Assert.AreEqual(successMessage, this.SuccessMessage.Text);
    }
}