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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Forcing decimal dot (.) for number parsing

Posted by jpluimers on 2011/10/11

Small but useful, especially in countries that have something else than a dot (.) as decimal digit separator (all of the green countries: probably more than you’d thought).

The C# sourcecode is really simple use a NumberFormatInfo instance (or an instance of another class implementing IFormatProvider) in a Single.ToString call:

                float number = 3.1415;
                NumberFormatInfo numberFormatInfo = new NumberFormatInfo();
                numberFormatInfo.NumberDecimalSeparator = ".";
                numberFormatInfo.NumberGroupSeparator = string.Empty;
                string numberString = number.ToString(numberFormatInfo);

The classes implementing IFormatProvider are CultureInfo, DateTimeFormatInfo and NumberFormatInfo.

–jeroen

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