/// <summary>
/// Sets the minimum number of fraction digits that are printed when
/// formatting. Limit the minimum to DOUBLE_FRACTION_DIGITS.
/// </summary>
///
/// <param name="value">the minimum number of fraction digits</param>
public override void SetMinimumFractionDigits(int value_ren)
{
base.SetMinimumFractionDigits(value_ren);
dform.SetMinimumFractionDigits(value_ren);
}