CODEWITHSUNDEEP
c#formattingdoubledecimal
Dashzapp
Dashzapp

Reputation: 143

Formatting a double with decimals C#

Is it possible to format a double, so he doesn't chance the text 2140.76 to 214076 but instead letting it be 2140.76?

I can't use ',' for the decimal numbers, since the entire text file that I'm reading are numbers using '.' for separating the decimals, 10000 records, every day, so ...

EDIT:

double natMB = 0;
boolean check = double.TryParse(splitline[8], NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out natMB);
if (check == false)
{
   natMB = 0;
}
else
{
   natMB = natMB * 1024;
}

double intMB = 0;
boolean check2 = double.TryParse(splitline[9], NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out intMB);
if (check2==false)
{
   intMB=0;
}
else
{
   intMB = intMB * 1024;
}

The 0 value is necessary since I need to enter these values in an SQL statement, and they need to show up as 0, not as null.

Upvotes: 0

Views: 501

Answers (4)

aleroot
aleroot

Reputation: 72676

Your question is not clear, Do you want to parse a double from a string with dot decimal separator ?

If yes try with this : 

double.Parse("2140.76", CultureInfo.InvariantCulture)

Upvotes: 1

Guffa
Guffa

Reputation: 700730

You can use the invariant culture to format a number with a decimal period, regardless of your local culture settings:

string formatted = someDouble.ToString(CultureInfo.InvariantCulture);

Upvotes: 1

TomTom
TomTom

Reputation: 62157

Is it possible to format a double so he doesn't chance the text 2140.76 to 214076 but instead letting it be 2140.76?

Yes. Let me play ignorant - I have no idea how you can even ask that and have the poroblem given the extensive formatting methods.

I can't use ',' for the decimal numbers, since the entire text file that i'm reading are numbers using '.' for separating the decimals, 10000 records, every day, so ...

So the problem likely is that you ahve a culture issue at hand and an ignorant developer on the other side. Ignorant because files exchagned should always be english formatted always, to avoid that.

Anyhow, basically: * Change your culture info in the thread to english or * Use english culture info for parsing and text generation.

Read the documentation for the methods you use -there areo verlaods that allow you to tune the formatting.

Upvotes: 0

Mr Lister
Mr Lister

Reputation: 46599

Start reading here:
http://msdn.microsoft.com/en-us/library/system.globalization.numberformatinfo.aspx

Basically, you create an NumberFormatInfo that you can customise to use with String.Format to use any format you want.

Upvotes: 0

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