Calculating Bytes/KB/MB/Gb...

[PiotrKolodziej]

Hi
I have long variable containing number of stored bytes.
I want to display Bytes , KB, MB, GB depending of the size of this variable
as a string.
Does framework provide any class for such a fast calculation or i have to
divide by 1024, check if result is zero, if not divide again and so on...?
Thanks
PK

[Thomas T. Veldhouse]

PiotrKolodziej <pi************ *@gmail.comwrot e:

Hi
I have long variable containing number of stored bytes.
I want to display Bytes , KB, MB, GB depending of the size of this variable
as a string.
Does framework provide any class for such a fast calculation or i have to
divide by 1024, check if result is zero, if not divide again and so on...?

bytes / 1024 == KB
bytes / 1024^2 == MB
bytes / 1024^3 == GB
bytes / 1024^4 == TB

--
Thomas T. Veldhouse
Key Fingerprint: 2DB9 813F F510 82C2 E1AE 34D0 D69D 1EDC D5EC AED1

[PiotrKolodziej]

bytes / 1024 == KB
bytes / 1024^2 == MB
bytes / 1024^3 == GB
bytes / 1024^4 == TB

It's not the answer for my question.

[Thomas T. Veldhouse]

PiotrKolodziej <pi************ *@gmail.comwrot e:

>

>bytes / 1024 == KB
bytes / 1024^2 == MB
bytes / 1024^3 == GB
bytes / 1024^4 == TB

It's not the answer for my question.

I think my answer was "No".

You can write your own FormatProvider if you wish.

--
Thomas T. Veldhouse
Key Fingerprint: 2DB9 813F F510 82C2 E1AE 34D0 D69D 1EDC D5EC AED1

[Jeff Gaines]

On 04/10/2006 in message <7e************ *************** @news.chello.pl >
PiotrKolodziej wrote:

>Hi
I have long variable containing number of stored bytes.
I want to display Bytes , KB, MB, GB depending of the size of this
variable as a string.
Does framework provide any class for such a fast calculation or i have to
divide by 1024, check if result is zero, if not divide again and so on...?
Thanks
PK

You have to do it yourself Piotr :-(

Do it once and keep it somewhere safe, it's a useful function to have!

--
Jeff Gaines

[james.curran]

There is nothing in the framework for this (that I know of), mainly
because:
1) It have a very specific use.
2) the calculation itself is trivial
3) it's troubled by a number of formatting issues (commas or spaces?
KB or Ko?)

PiotrKolodziej wrote:

Does framework provide any class for such a fast calculation or i have to
divide by 1024, check if result is zero, if not divide again and so on...?

[PiotrKolodziej]

I think my answer was "No".

Your answer was:
bytes / 1024 == KB
bytes / 1024^2 == MB
bytes / 1024^3 == GB
bytes / 1024^4 == TB

You can write your own FormatProvider if you wish.

I knew it and the question was due to something else.

[PiotrKolodziej]

Do it once and keep it somewhere safe, it's a useful function to have!

Indeed.
Anyway thanks you for your posts.

[Thomas T. Veldhouse]

PiotrKolodziej <pi************ *@gmail.comwrot e:

Hi
I have long variable containing number of stored bytes.
I want to display Bytes , KB, MB, GB depending of the size of this variable
as a string.
Does framework provide any class for such a fast calculation or i have to
divide by 1024, check if result is zero, if not divide again and so on...?

switch((int)(Sy stem.Math.Log(b ytecount) / System.Math.Log (1024)))
{
case 0:
return @"bytes";
case 1:
return @"KB";
case 2:
return @"MB";
case 3:
return @"GB";
case 4:
return @"TB";
default:
reutrn @"REALLY HUGE!";
}
--
Thomas T. Veldhouse
Key Fingerprint: 2DB9 813F F510 82C2 E1AE 34D0 D69D 1EDC D5EC AED1

[Marc Gravell]

(int)(System.Ma th.Log(bytecoun t) / System.Math.Log (1024))

Although log will work (rounding permitting), it seems overkill here...
personally I'd just keep ">10"-ing until I get a zero, and use the
previous value for the number, keeping track of the number of shifts
for the kb, Mb, Gb, Tb etc... It should be a lot less FLOPs... (i.e.
none)

Marc