How can I validate Mobile/Landline Number formatting using MVC.Net?

Question

Pretty simple question - validating International Mobile/Landline Number using Data Annotations.

Any suggestions?

Answer 1

There is no single "international" phone number standard, but you can do some validation. For example:

[RegularExpression(@"^([\+]|0)[(\s]{0,1}[2-9][0-9]{0,2}[\s-)]{0,2}[0-9][0-9][0-9\s-]*[0-9]$")]

This allows, for example: 044 123-456, +2 12-12456, +(234) 56-56-452. See here for more kinds of regular expressions for phone numbers:

http://regexlib.com/Search.aspx?k=phone+number&c=0&m=0&ps=20&p=12

Answer 2

MVC has built in support for telephone numbers:

[DataType(DataType.PhoneNumber)]
public string Phone { get; set; }

See the MSDN reference page for more information on the validatation types available: DataType Enumeration.