c# - Decimal.ToUInt64 "Value was either too large or too small for a UInt64 -

i doing: -

decimal production = 0; decimal expense = 5000;  decimal.touint64(production - expense); 

but throws exception following error message.

"value either large or small uint64"

can give me workaround this.

thanks!

edit

in case, want result positive number.

problem: -5000m negative number, outside range of uint64 (an unsigned type).

solution: use int64 instead of uint64 if want cope negative numbers.

note can cast instead of calling decimal.to...:

long x = (long) (production - expense); 

alternative: validate number non-negative before trying convert it, , deal deem appropriate.

very dodgy alternative: if really want absolute value (which seems unlikely) use math.abs:

uint64 alwaysnonnegative = decimal.touint64(math.abs(production - expense));