How to round a decimal value dyanamically

Question

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C#

C#4.0

Hi All ,,

I need to round a decimal value

Ex : 2.365 become 2.360
3.239 become 3.230

thanks

Afsal

Posted 10-Mar-14 22:42pm

afsal.mp

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Comments

Tejas Vaishnav 11-Mar-14 4:45am

you are not rounding in your ex.. like if value is 3.239 then it will become like 3.240 not 3.230...
you are trying to round last digit to 0 or you need to round your decimal to nearest number?

afsal.mp 11-Mar-14 4:57am

yes... i nee 3.239 become 3.230

Kenneth Haugland 11-Mar-14 5:11am

You should use the truncate function:
http://msdn.microsoft.com/en-us/library/c2eabd70(v=vs.110).aspx

george4986 11-Mar-14 5:29am

decimal value of 2.360 is 2.36 is it necessary to add zero?

3 solutions

Solution 1

System.Math.Round(x,0)

Posted 10-Mar-14 22:45pm

ArunAmalraj

Comments

afsal.mp 11-Mar-14 4:56am

it will get only first value.. it will not get after decimal point

Solution 2

try this.. :)

C#

double d = 1.275;
Math.Round(d, 2);          // 1.27
Math.Round((decimal)d, 2); // 1.28

Posted 10-Mar-14 22:54pm

Nirav Prabtani

Updated 11-Mar-14 0:05am

v2

Comments

afsal.mp 11-Mar-14 4:56am

i need c# code

Nirav Prabtani 11-Mar-14 6:04am

try updated solution

ArunAmalraj 11-Mar-14 5:07am

System.Math.Round(x,0)

Replace 0 by the 'n' - digits after the decimal point

Ex: System.Math.Round(x,3) gives you x.450

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george4986 · Accepted Answer · 2014-03-10T23:39:00

Solution 3

try this

C#

double inVal = 2.365;
 double outVal = Math.Truncate(inVal * 100) / 100;
 string outStr = outVal.ToString("#.000");

decimal value of 2.360 is 2.36
outVal ->2.36
outStr ->2.360

[Agent_Spock]

or you can do it like this

C#

decimal value = Math.Round(Convert.ToDecimal("12.395"), 2);
string outStr  = value.ToString("#.000");

value is 12.4
outStr is 12.400

Posted 10-Mar-14 23:39pm

george4986

Updated 11-Mar-14 0:38am

v2

Comments

george4986 11-Mar-14 6:58am

agent_spock ,its not the requirement
12.395->12.390 NOT 12.400

afsal.mp 11-Mar-14 7:13am

Thank you very much

george4986 11-Mar-14 7:16am

happy to hear it works
gud luck ;-)