April 22, 2007

Validating a GUID Value with Regular Expressions

I am sure that most readers of this site have at one point or another noticed my RegularExpression articles.  Well this past week I was looking for a very specific regular expression and thought I would share it with you.  The following regular expresion is used to validate a GUID value for user input.  You can use this to ensure that product keys and other GUID values that you are using are in the proper format. 

^(\{){0,1}[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}(\}){0,1}$

tags: .NET 1.1, .NET 2.0, General Tech
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