public string TakeScreenshot(IWebDriver driver,string SnapFolderPath,string TCID,string KeyFunction)
    {
        try
        {
            //  driver.Manage().Window.Maximize();
            ITakesScreenshot ssdriver = driver as ITakesScreenshot;
            Screenshot screenshot = ssdriver.GetScreenshot();
            string filePath = testReport + "\\" + TCID + "_" + KeyFunction + "_" + GetDateTimeforFilePath() + ".png";
            screenshot.SaveAsFile(filePath,ImageFormat.Png);

            return filePath;
        }
        catch (Exception ex)
        {
            return string.Empty;
        }
    }