Integer Rounding

[tehon3299]

How can I get an integer NOT to round? i.e. 1.88 I want to be 1 and not round up to 2. Or should it be a double? If so, I do I now show the decimal places?

 

[Nerseus]

In C# you just cast as an int, and it never rounds. Try:

decimal i = 1.88M;
Debug.WriteLine((int)i);

I don't know the equivalent in VB.NET, if you need it just ask.

-nerseus

 

[tehon3299]

Thanks...I know how to do it in VB..Thanks again

 

[Derek Stone]

Decimal.Floor() is the non-language oriented (and dare I say correct method) of rounding down a decimal value to the nearest whole number.

 

[hog]

I use this:

 intWhatEver  = Convert.ToInt32(Math.Floor(1.88))

 

[Nerseus]

You guys are mostly right - assuming you are using positive numbers. Floor behaves differently for negative numbers. If you do Math.Floor(-1.88) you'll get 2 (weird, but true). To do that properly using the math functions, you need to check for < 0 and use Math.Ceiling. Casting as (int) works in both cases.

-Ner