Hi

In my strategy I need to round a number to multiple of an interval and have a choice of rounding up, down, and to the nearest mulitple of interval. I've found following code snippet that should do the job exactly as I need it:

 

Code

public static decimal RoundToInterval(decimal value, decimal interval, IntervalRounding rounding) {    // Guard against the divide by zero exception    if (interval == 0)       return decimal.MinValue;      decimal result = value / interval;      switch (rounding)    {           case IntervalRounding.Nearest:              return (decimal.Round(result, 0, MidpointRounding.AwayFromZero) * interval);           case IntervalRounding.Up:              return (decimal.Ceiling(result) * interval);           case IntervalRounding.Down:              return (decimal.Floor(result) * interval);           default:              return decimal.MinValue;    }   }

Public enum required would be:

 

Code

public enum IntervalRounding {Nearest = 0, Up = 1, Down = 2}

Now the problem is I can't get it to work. And when I use:

 

Code

RoundToInterval(3.83, 2, Down);

Expected behavior would be number 2 but...

I receive an error:
"The name 'Down' does not exist in the current context"

Am I missing something?

Try with:

 

Code

RoundToInterval(3.83, 2, IntervalRounding.Down);

Thanks Sam,

That was what I was missing.
Now it works for integers (RoundToInterval(3,2,IntervalRounding.Down) but stops when I use the example above (3.83, 2) - it says: Argument 1: cannot convert from double to decimal.

Do you know how to correct this or eventually know any other way of achieving what I need?

Thanks again

Well, I have received my C# humility lesson. My programming experience is very limited and I have no experience with strong typing languages at all...

Anyway for my example to work I had to use following code:

 

Code

RoundToInterval(Convert.ToDecimal(3.83), Convert.ToDecimal(2), IntervalRounding.Down)