Avoid scientific notation when casting numbers to string

[Dennis Myrén]

Hi.

Is there a way to make sure that float, double and decimal data types
never will be presented in a scientific notation?

I have tried to round(Math.Round) float's to 7 decimals, double's to 15
and decimals to 28 decimals, but that does not help.
And the System.Globalization.NumberFormatInfo class does not seem to provide
a such function.
Thank you

Regards, Dennis

[Dmitriy Lapshin [C# / .NET MVP]]

Hi,

You could just play with format specification strings like in this MSDN
example from the
"Standard Numeric Format Strings" topic:

using System;
using System.Threading;
using System.Globalization;

class Class1
{
static void Main()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-us");
double MyDouble = 123456789;

Console.WriteLine("The examples in en-US culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));

Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
Console.WriteLine("The examples in de-DE culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));
}
}
--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Dennis Myr?n" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Hi.

Is there a way to make sure that float, double and decimal data types
never will be presented in a scientific notation?

I have tried to round(Math.Round) float's to 7 decimals, double's to 15
and decimals to 28 decimals, but that does not help.
And the System.Globalization.NumberFormatInfo class does not seem to provide a such function.
Thank you

Regards, Dennis

[Dennis Myrén]

Thank you for the reply.
However, it is not that simple.
Not any of those format strings does help in my case.
"Dmitriy Lapshin [C# / .NET MVP]" <x-****@no-spam-please.hotpop.com> wrote
in message news:O$*************@TK2MSFTNGP12.phx.gbl...

Hi,

You could just play with format specification strings like in this MSDN
example from the
"Standard Numeric Format Strings" topic:

using System;
using System.Threading;
using System.Globalization;

class Class1
{
static void Main()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-us");
double MyDouble = 123456789;

Console.WriteLine("The examples in en-US culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));

Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
Console.WriteLine("The examples in de-DE culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));
}
}
--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Dennis Myr?n" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Hi.

Is there a way to make sure that float, double and decimal data types
never will be presented in a scientific notation?

I have tried to round(Math.Round) float's to 7 decimals, double's to 15
and decimals to 28 decimals, but that does not help.
And the System.Globalization.NumberFormatInfo class does not seem to

provide

a such function.
Thank you

Regards, Dennis

[Dmitriy Lapshin [C# / .NET MVP]]

Dennis,

Maybe it's just I don't understand what you are trying to achieve? Could you
please elaborate?

--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Dennis Myr?n" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Thank you for the reply.
However, it is not that simple.
Not any of those format strings does help in my case.
"Dmitriy Lapshin [C# / .NET MVP]" <x-****@no-spam-please.hotpop.com> wrote
in message news:O$*************@TK2MSFTNGP12.phx.gbl...

Hi,

You could just play with format specification strings like in this MSDN
example from the
"Standard Numeric Format Strings" topic:

using System;
using System.Threading;
using System.Globalization;

class Class1
{
static void Main()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-us");
double MyDouble = 123456789;

Console.WriteLine("The examples in en-US culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));

Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
Console.WriteLine("The examples in de-DE culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));
}
}
--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Dennis Myr?n" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Hi.

Is there a way to make sure that float, double and decimal data types
never will be presented in a scientific notation?

I have tried to round(Math.Round) float's to 7 decimals, double's to 15 and decimals to 28 decimals, but that does not help.
And the System.Globalization.NumberFormatInfo class does not seem to

provide

a such function.
Thank you

Regards, Dennis

[Jon Skeet]

Dennis Myrén <de**********@greydigital.no-spam.no> wrote:

Thank you for the reply.
However, it is not that simple.
Not any of those format strings does help in my case.

The "F" specifier should be fine for you, but you'll need to specify
how many decimal places you want.

Note that .NET doesn't give you any easy way of formatting the *exact*
value of a double (or float) as a string. If you want that, you can use
the code I've got on
http://www.pobox.com/~skeet/csharp/floatingpoint.html
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Dennis Myrén]

Thank you all for your help.
I just didnt realize i could specify the number of decimals as well, when
using the "f"
format string.

Now it works.

Regards, Dennis
"Dennis Myrén" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Thank you for the reply.
However, it is not that simple.
Not any of those format strings does help in my case.
"Dmitriy Lapshin [C# / .NET MVP]" <x-****@no-spam-please.hotpop.com> wrote
in message news:O$*************@TK2MSFTNGP12.phx.gbl...

Hi,

You could just play with format specification strings like in this MSDN
example from the
"Standard Numeric Format Strings" topic:

using System;
using System.Threading;
using System.Globalization;

class Class1
{
static void Main()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-us");
double MyDouble = 123456789;

Console.WriteLine("The examples in en-US culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));

Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
Console.WriteLine("The examples in de-DE culture.\n");
Console.WriteLine(MyDouble.ToString("C"));
Console.WriteLine(MyDouble.ToString("E"));
Console.WriteLine(MyDouble.ToString("P"));
Console.WriteLine(MyDouble.ToString("N"));
Console.WriteLine(MyDouble.ToString("F"));
}
}
--
Dmitriy Lapshin [C# / .NET MVP]
X-Unity Test Studio
http://x-unity.miik.com.ua/teststudio.aspx
Bring the power of unit testing to VS .NET IDE

"Dennis Myr?n" <de**********@greydigital.no-spam.no> wrote in message
news:bl**********@news.tdcnorge.no...

Hi.

Is there a way to make sure that float, double and decimal data types
never will be presented in a scientific notation?

I have tried to round(Math.Round) float's to 7 decimals, double's to 15 and decimals to 28 decimals, but that does not help.
And the System.Globalization.NumberFormatInfo class does not seem to

provide

a such function.
Thank you

Regards, Dennis