Decimal round

  • Thread starter Thread starter Luigi Z
  • Start date Start date
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Luigi Z

Hi all,
how can I write a method that returns a rounded decimal like these rules?

0.49 -> 0
0.50 -> 0
0.51 -> 1
and so on for positive values
-0.49 -> 0
-0.50 -> 0
-0.51 -> -1
and so on for negative values.

Thanks in advance.

Luigi
 
Hi all,
how can I write a method that returns a rounded decimal like these rules?

0.49 -> 0
0.50 -> 0
0.51 -> 1
and so on for positive values
-0.49 -> 0
-0.50 -> 0
-0.51 -> -1
and so on for negative values.

Thanks in advance.

Luigi
Click to expand...

Any particular aversion to using Math.Round()?
You can even use MidpointRounding.ToEven or
MidpointRounding.AwayFromZero to push the rounding in the direction
you need.

You might want to try searching MSDN.Microsoft.com first.

Tom P.
 
Tom P. said:
Any particular aversion to using Math.Round()?
You can even use MidpointRounding.ToEven or
MidpointRounding.AwayFromZero to push the rounding in the direction
you need.

You might want to try searching MSDN.Microsoft.com first.
Click to expand...

Thank you for response Tom, but I've not found a solution yet.

Luigi
 
Luigi said:
Hi all,
how can I write a method that returns a rounded decimal like these rules?

0.49 -> 0
0.50 -> 0
0.51 -> 1
and so on for positive values
-0.49 -> 0
-0.50 -> 0
-0.51 -> -1
and so on for negative values.

Thanks in advance.

Luigi
Click to expand...

Math.Round(d, MidpointRounding.ToEven) gives you that result.
 
Math.Round(d, MidpointRounding.ToEven) gives you that result.
Click to expand...

I was wondering why he didn't use that but all I got was a note that
it doesn't work.

I have tried it and it does exactly what he was asking so I don't know
if there is some other difference that I don't understand.

Tom P.
 
Tom said:
I was wondering why he didn't use that but all I got was a note that
it doesn't work.

I have tried it and it does exactly what he was asking so I don't know
if there is some other difference that I don't understand.

Tom P.
Click to expand...

I guess that he might have some other requiremnents that he hasn't
mentioned. For example whether 1.50 should be rounded to 1 or 2...
 
Göran Andersson said:
I guess that he might have some other requiremnents that he hasn't
mentioned. For example whether 1.50 should be rounded to 1 or 2...
Click to expand...


My guess was he wanted TowardZero, not AwayFromZero.
 
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