Want to find the length of Double value in C#

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I want to find the length of particular double value in C#.

I'm novice, I dont know how to find the length of double value.

For example;

C#

double sample1;
sample1=123;
int size;
size = //size of double value, that is 3.

how can i find the size of double value?

thanks in advance.

Posted 10-Jun-12 20:20pm

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Comments

Rob Philpott 11-Jun-12 3:59am

By size, do you mean order-of-magnitude or length when expressed as a string? Not that it matters as you have both solutions below.

2 solutions

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Rahul.KumarSharma · Accepted Answer · 2012-06-10T21:38:00

Solution 2

Use below code:

C#

double sample1;
sample1 = 123;
int size;
size = sample1.ToString().Length;

Or

C#

int size = de.ToString().Remove(de.ToString().IndexOf('.')).Length;

Posted 10-Jun-12 21:38pm

Rahul.KumarSharma

Updated 10-Jun-12 23:47pm

v3

Comments

VJ Reddy 11-Jun-12 4:09am

Good answer. 5!

Mehdi Gholam 11-Jun-12 4:26am

This will only work if the double does not have a decimal point and fractions.

♥…ЯҠ…♥ 11-Jun-12 7:46am

Thanks dude...!!!

Joezer BH 30-Jun-15 5:43am

5+

Mehdi Gholam · Accepted Answer · 2012-06-10T20:40:00

Solution 1

Use this :

C#

double de = 12345;
int len = (int)Math.Ceiling(Math.Log10(de));

Posted 10-Jun-12 20:40pm

Mehdi Gholam

Comments

VJ Reddy 11-Jun-12 4:08am

Good answer. 5!

Mehdi Gholam 11-Jun-12 4:25am

Thanks VJ!

♥…ЯҠ…♥ 11-Jun-12 7:46am

Thanks pal...

Joezer BH 30-Jun-15 5:43am

5+

Mehdi Gholam 30-Jun-15 5:56am

Cheers Joezer!

Member 12925579 28-Dec-16 9:54am

It doesnt work for anything after a decimal point. E.g. 0.2 gives a length of 0.