How to skip rounding off

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C#

int NumValue = 123.6;

string StrValue = NumValue.ToString("00000");

The value assigned to "StrValue" is 00124 instead of 00123 (Means round off).

Please guide me that how to skip rounding off ????

Posted 16-Jul-14 23:38pm

3 solutions

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André Kraak · Accepted Answer · 2014-07-16T23:45:00

You can either cast[^] the double to an int or use the Math.Truncate[^] function.

Casting:

C#

int NumValue = (int)123.6;

Truncate:

C#

int NumValue = Math.Truncate( 123.6 );

Posted 16-Jul-14 23:45pm

Updated 16-Jul-14 23:47pm

v3

Sandeep Singh Shekhawat · Accepted Answer · 2014-07-16T23:48:00

Don't assign floating number to int fisrt

C#

float NumValue = 123.6f;
 string StrValue = Math.Floor(NumValue).ToString("00000");

Posted 16-Jul-14 23:48pm

OriginalGriff · Accepted Answer · 2014-07-16T23:51:00

Well... that won't compile, as you will get a "Cannot implicitly convert type" error.
If you use integers and cast it, you won't get rounded:

C#

int NumValue = (int) 123.6;

string StrValue = NumValue.ToString("00000");

Or, if you are using floating point then you can explicitly say what rounding you want:

C#

double NumValue = (int) 123.6;

string StrValue = Math.Round(NumValue, 0).ToString("00000");