2 Decimal Places on my label

Question

User-1901014284 posted

Hi,

I am using the below code to calculate the total cost of a consultants work duration minutes by the consultants hourly rate.

What I would like to do is round the decimal figure to 2 decimal places to get the correct calculation. I have tried adding the Math.Round workaround bit this has not worked for me also. the figure within the label still displays all carried over figuere (e.g. 1.666666666666667 I want it to be 1.67)

string result = TotalTravelStartMinutesLabel0.Text;
int WDC = int.Parse(result);
decimal PM = Decimal.Parse(PerMinuteLabel.Text);
Math.Round(PM, 2);
DurationCostLabel.Text = (WDC * (decimal)PM).ToString("C");

Any help would be greatly appreciated.

Many thanks

Jonny

Answer 1

User475983607 posted

it is unclear of you are concerned with significant figures or simply formatting a number as a string.  This line of code should show decimal places according your the culture setting.

DurationCostLabel.Text = (WDC * (decimal)PM).ToString("C");

Answer 2

User-1901014284 posted

Thank you for responding, I would like to format the decimal figure to only 2 decimal places. Would this be possible?

Answer 3

User475983607 posted

Thank you for responding, I would like to format the decimal figure to only 2 decimal places. Would this be possible?

Sill not clear. The "C" format string will convert the result to currency as described on the following reference doc.

https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings

This code

decimal value = 1.666667m;
Console.WriteLine((10.0m * value).ToString("C"));

results in 

$16.67

Answer 4

User-1901014284 posted

Hi,

Thank you very much for your response, to get this to work as I require I have had to set the format on the label itself after parsing the result to the label. Please see below my code which I have used as a work around.

double Perminresult = double.Parse(HourlyRateLabel.Text) / 60;
PerMinuteLabel.Text = Perminresult.ToString("##.##");

Again thank you very much for your help it has been greatly appreciated.

Many thanks

Jonny