BingMainPage.cs

using OpenQA.Selenium;

namespace HuddlePageObjectsElementsStringProperties.ImprovedVersion
{
    public partial class BingMainPage
    {
        private readonly IWebDriver _driver;
        private readonly string url = @"http://www.bing.com/";

        public BingMainPage(IWebDriver browser)
        {
            _driver = browser;
        }

        public void Navigate()
        {
            _driver.Navigate().GoToUrl(url);
        }

        public void Search(string textToType)
        {
            SearchBox.Clear();
            SearchBox.SendKeys(textToType);
            GoButton.Click();
        }
    }
}