C#: Rounding up to 2 maximum decimal points for Double variables

Question

Is there any chance to format a double value after an operation to come up with only 2 decimal values? Because i am making a weather report and i'm getting the average of weather data per 5 minutes and i want to make it formal to have only 2 decimal places.

Which instead of having 10240.8999 i could have 10240.90. Any thoughts or suggestion?

There are dozens of duplicates on this site already. And you're not really clear whether you want to _round_ or _format_ a number. — Henk Holterman, Jan 02 '15 at 16:40
sorry about the confusion :" i am more referring to rounding up. ill change it — Solem, Jan 02 '15 at 16:52

score 0 · Answer 1 · answered Jan 02 '15 at 16:35

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In .NET, the way to do this is:

var rounded = Math.Round(valueToRound, 2);

for decimal variables:

var rounded = Decimal.Round(valueToRound, 2);

answered Jan 02 '15 at 16:35

JLRishe

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score -1 · Accepted Answer · answered Jan 02 '15 at 16:36

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Round with 2 decimals and convert to string to force 2 decimals

string rounded = String.Format("{0:f2}", Math.Round(10240.8999, 2));

Gives 10240.90

answered Jan 02 '15 at 16:36

Flat Eric

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Rounding _and_ formatting seems a little redundant. – Henk Holterman Jan 02 '15 at 16:44
Not really if you want the `0` in the end – Flat Eric Jan 02 '15 at 16:45
thanks bro i used this and got what i want :) – Solem Jan 02 '15 at 16:54

C#: Rounding up to 2 maximum decimal points for Double variables

2 Answers2