How to format a phone numbers with libphonenumber in International format.

Question

In the documentation provided by libphonenumber on Github, there is a demo, which converts any provided number into International Format, e.g [phone] is converted into [phone]

I want to use the same functionality in C#.

In the documentation of libphone, there is need to parse the number and provide the countries/regions. But the demo works without providing the region/country. Can some body let me know how it is done?

Berberidaceous

Answer 1

Have you tried this?

var phoneUtil = PhoneNumberUtil.GetInstance();
var numberProto = phoneUtil.Parse("1234567890", "IT");
var formattedPhone = phoneUtil.Format(numberProto, PhoneNumberFormat.INTERNATIONAL);

This will give you "[phone]"

Coelenterate

How to validate phone number? I don't know how to set PhoneNumber - it has a lot of params, but mostly they are readonly. – Ocular

@Ocular use phoneUtil.Parse and then phoneUtil.IsValidNumber – Freddyfredek

Answer 2

@danyolgiax almost had it. Here's what you do:

var phoneUtil = PhoneNumberUtil.GetInstance();
var numberProto = phoneUtil.Parse("[phone]", "ZZ"); //why ZZ means international i don't know
var formattedPhone = phoneUtil.Format(numberProto, PhoneNumberFormat.INTERNATIONAL);

Remember to use phoneUtil.IsValidNumber if you aren't certain that the phone number is valid. Also be aware that phoneUtil.Parse may throw.

Freddyfredek

ZZ dont work i get PhoneNumbers.NumberParseException: 'Missing or invalid default region.' – Illustrative