ASP.NET version of "Phone Number Format"

This sample takes a phone number in any old format and attempts to wrangle it into a nice uniform format. It's great to use for form validation, before placing the number into a database, or to create good looking reports.

I used the "(800) 555-1212" format, but changing it to whatever format you prefer is simple. Just for fun I also threw in some basic error handling for when the number doesn't have 10 digits (or 11 if the first is a 1). The error handling is quite trivial, but it is in there if you want to build on it.

Here's a zip file of the code (1.9 KB).

Play with the running version.

View the live source code.

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