BingMainPage.cs

public partial class BingMainPage : BasePage
{
    public BingMainPage(
        IElementFinder elementFinder, 
        INavigationService navigationService)
        : base(elementFinder, navigationService)
    {
    }

    public void Navigate()
    {
        this.NavigationService.NavigateByAbsoluteUrl(@"http://www.bing.com/");
    }

    public void Search(string textToType)
    {
        // It is going to be implemented in the next article.
        ////this.SearchBox.Clear();
        ////this.SearchBox.SendKeys(textToType);
        this.GoButton.Click();
    }
    
    public int GetResultsCount()
    {
        int resultsCount = default(int);
        resultsCount = int.Parse(this.ResultsCountDiv.Content);
        return resultsCount;
    }