/// <summary>
/// Return whether the value in text field is invalid
/// </summary>
/// <returns>True if invalid</returns>
public bool IsComboBoxValueInvalid()
{
string invalid = SelectInput.GetAttribute("aria-invalid");
return(String.Equals(invalid, "true", StringComparison.OrdinalIgnoreCase));
}
/// <summary>
/// Get the value of combo box
/// </summary>
/// <param name="key">combo box element key</param>
/// <returns>Combo box value</returns>
public string GetValue()
{
return(SelectInput.GetAttribute("value"));
}