The provided Math.Round function implements "bankers rounding", which rounds to the nearest even number when a number ends in .5
This means that both 1.5 and 2.5 round to 2. This is not what most e-commmerce and real-world implementations need. Here is a "normal" or "US round" function.
/// <summary>
/// Rounds the specified to round.
/// </summary>
/// <param name="toRound"> To round.</param>
/// <param name="digits"> The digits.</param>
/// <returns></returns>
namepsace MathUtils { public static decimal Round( decimal toRound, int digits ) {
toRound *= (decimal )(Math.Pow(10d,(double)digits));
if( toRound - Decimal.Truncate(toRound) >= .5m ) {
toRound += 1;
}
toRound = Decimal.Truncate(toRound);
toRound /= (decimal)( Math.Pow(10d,(double)digits));
return toRound;
}
}
