public void ClearData()
{
m_Series.ClearData();
m_Legend.ClearData();
}
/// <summary>
/// Remove all series and legend data.
/// It just emptying all of serie's data without emptying the list of series.
/// </summary>
public virtual void ClearData()
{
m_Series.ClearData();
m_Legend.ClearData();
RefreshChart();
}