IFormatProvider with Integer value

Question

I have an Integer value in my object. I need to cast it as an integer value. So I have done it this way. System.Convert.ToInt64(Object) But FxCop said that I need to provide with IFormatProvider. String data type I have no issue with provide IFormatProvider. How can I provide an IFormatProvider for integer value?

I don't think an `IFormatProvider` is needed here, you can convert it directly. — Cheng Chen, Feb 09 '11 at 13:09

score 6 · Answer 1 · answered Feb 09 '11 at 13:09

It depends on how you need to print your value.

e.g. using:

var provider = System.Globalization.CultureInfo.InvariantCulture;

you will get a string that is independent from your local (regional) settings.

Using:

var provider = System.Globalization.CultureInfo.CurrentCulture;

or:

var provider = System.Globalization.CultureInfo.CurrentUICulture;

instead, the string will be printed using your local (regional) machine settings.

score 2 · Answer 2 · answered Feb 09 '11 at 13:09

2

If you want to use Current Culture

System.Globalization.CultureInfo.CurrentCulture.NumberFormat

or ex:

new CultureInfo("en-UK").NumberFormat

answered Feb 09 '11 at 13:09

Vijay Sirigiri

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Generates error: `new CultureInfo("en-UK").NumberFormat 'new CultureInfo("en-UK")' threw an exception of type 'System.ArgumentException' System.Globalization.NumberFormatInfo`.... It should be like this: `new CultureInfo("en-GB").NumberFormat` or `new CultureInfo("en-US").NumberFormat` – uzay95 Jan 27 '12 at 15:33

score 1 · Answer 3 · answered Feb 09 '11 at 13:06

1

see here: IFormatProvider Interface

answered Feb 09 '11 at 13:06

Davide Piras

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score 1 · Answer 4 · answered Feb 09 '11 at 13:16

1

Is there a problem with just casting the object variable?

Int64 i = (Int64) myObject;

If it really is just a boxed integer, I don't see why that wouldn't work.

answered Feb 09 '11 at 13:16

user

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IFormatProvider with Integer value

4 Answers4