BingMainPage.cs

public partial class BingMainPage
{
    public IElement SearchBox
    {
        get
        {
            return this.ElementFinder.Find<IElement>(By.Id("sb_form_q"));
        }
    }

    public IElement GoButton
    {
        get
        {
            return this.ElementFinder.Find<IElement>(By.Id("sb_form_go"));
        }
    }

    public IElement ResultsCountDiv
    {
        get
        {
            return this.ElementFinder.Find<IElement>(By.Id("b_tween"));
        }
    }
}