Selenium API Test if a component is visible

gistfile1.cs

// Check if the provided value exists in an html table cell
public bool RowExists(string value)
{
  try
  {
      var rowXPath = string.Format("//tr[td[normalize-space(text())='{0}']]", value);
      webDriver.FindElement(By.XPath(rowXPath));

      return true;
  }
  catch (NoSuchElementException)
  {
      return false;
  }
}