Validating a phone number
Fortunately, Tom Clegg has created a port of libphonenumber to C#, libphonenumber-csharp, so .
NET developers can implement libphonenumber conveniently in their applications.
Now that you know, you have many reasons for including libphonenumber-csharp in your projects.
Also be sure to check out the FAQ and the libphonenumber Readme.
This is particularly true of data like phone numbers, which are typically private data used to deliver both application functionality, such as messaging, and security features like 2-factor authentication. NET Core provide data validation capabilities to make it easier to handle standard data types more robustly. NET frameworks provide for validating phone numbers, the capabilities are limited, particularly with respect to internationalization (“i18n”).
Application development frameworks, including the . Fortunately, there is a open source library, in your .
Use the sample number below with the project you built or the Blip Phone project.
Google makes extensive use of phone numbers in its cloud applications, business operations, and in the Android, Chrome, and (presumably) Fuchsia operating systems.Both these formats are documented as performing validation with a regular expression, but the documentation itself is silent on the regular expression(s) used.A better understanding of how this class works can be had by examining the source code on Git Hub.If those checks pass we can use the You can use this pattern to perform a wide variety of checks and transformations on phone numbers, including formatting a number for international dialing from with mobile phones and landlines from various countries.If you want to try additional checks using the class in the Controller you can write them to output or add more fields to the view model and the view.
Lookup gives you the tools you need to do just that.