convert double to string

[Denis]

Hi,

I am trying to convert a double to a string. The problem the value of
the double may vary and I need to always the exact value without the
exponential and without rounding.
Example: double 0.0000000000000 0000000023 should be string
0.0000000000000 0000000023 and not 0.00 or 2.3-E24

I tried it with
Console.WriteLi ne(dd.ToString( "X", CultureInfo.Inv ariantCulture))
X=different numbertypes like G,D,N,...

Double.Parse(dd , NumberStyles.Al lowCurrencySymb ol Or
NumberStyles.Nu mber Or ...

string.Format(" {0:0.####}", myNumber);

Is there anyone out there who allready found a solution for it?

[Jon Skeet [C# MVP]]

Re: convert double to string

Denis <Denis.Nicklas@ googlemail.comw rote:

I am trying to convert a double to a string. The problem the value of
the double may vary and I need to always the exact value without the
exponential and without rounding.

If you need the absolute *exact* value, you can use the DoubleConverter
which can be found on

http://pobox.com/~skeet/csharp/floatingpoint.html

However, be careful - for your example, there's no exact double with
the value 0.0000000000000 0000000023. The closest is:

0.0000000000000 000000002299999 999999999806144 049737318254339 97863397240
965158599261021 488135980916922 562755644321441 650390625

--
Jon Skeet - <skeet@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

[Denis]

Re: convert double to string

On 24 Apr., 20:52, Jon Skeet [C# MVP] <sk...@pobox.co mwrote:

Denis <Denis.Nick...@ googlemail.comw rote:

I am trying to convert a double to a string. The problem the value of
the double may vary and I need to always the exact value without the
exponential and without rounding.

>
If you need the absolute *exact* value, you can use the DoubleConverter
which can be found onhttp://pobox.com/~skeet/csharp/floatingpoint.h tml
>
However, be careful - for your example, there's no exact double with
the value 0.0000000000000 0000000023. The closest is:
>
0.0000000000000 000000002299999 999999999806144 049737318254339 97863397240
965158599261021 488135980916922 562755644321441 650390625
>
--
Jon Skeet - <sk...@pobox.co m>http://www.pobox.com/~skeet  Blog:http://www.msmvps.com/jon.skeet
World class .NET training in the UK:http://iterativetraining.co.uk

Thanks, helped very much