Decimal - truncate trailing zeros
I noticed that .NET has some funky/unintuitive behavior when it comes to decimals and trailing zeros.
0m == 0.000m //true
0.1m == 0.1000m //true
but
(0m).ToString() == (0.000m).ToString() //false
(0.1m).ToString() == (0.1000m).ToString() //false
I know about necessity to comply to the ECMA CLI standard. However I would like to know if there is built-in way to truncate the trailing zeros for a d开发者_StackOverflowecimal value without going through string representation (.ToString("G29") and parse back trick would work, but is neither fast nor elegant solution)?
Any ideas? Thanks a lot.
I think that what you need is this (more details in my answer here) :
public static decimal Normalize(decimal value)
{
return value/1.000000000000000000000000000000000m;
}
Use a format string to specify the output of ToString():
(0.1m).ToString("0.#") -> "0.1"
(0.10000m).ToString("0.#") -> "0.1"
Use a "0" in the format to specify a digit or a non-significate 0, use "#" to specify a significant digit or suppress a a non-significate 0.
Edit: I assuming here that you are worried about the visual (string) representation of the number - if not, I will remove my answer.
I don't like it much, but it works (for some range of values, at least)...
static decimal Normalize(decimal value)
{
long div = 1;
while(value - decimal.Truncate(value) != 0)
{
div *= 10;
value *= 10;
}
if(div != 1) {
value = (decimal)(long)value / div;
}
return value;
}
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