The predefined character classes : Regular Expression « Validation « ASP.NET Tutorial

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ASP.NET Tutorial » Validation » Regular Expression 
8. 9. 1. The predefined character classes
. :    Any character
\d:    Any digit 
\D:    Any non-digit 
\s:    Any white-space character (such  as spaces, tabs, newlines, returns, and backspaces)
\S:    Any character other than a white space character
\w:    Any word character 
\W:    Any character other than a word  character
8. 9. Regular Expression
8. 9. 1. The predefined character classes
8. 9. 2. quantifiers used to create patterns that match a variable number of characters at a certain position in the string
8. 9. 3. Metacharacters for Matching Single Characters
8. 9. 4. Metacharacters for Matching Types of Characters
8. 9. 5. Quantifiers
8. 9. 6. Commonly Used Regular Expressions
8. 9. 7. RegularExpressionValidator compares value against a regular expression
8. 9. 8. Regular Expression based validation (C#)
8. 9. 9. Use asp:RegularExpressionValidator to check the zip code
8. 9. 10. Use asp:RegularExpressionValidator to check the email address
8. 9. 11. Use Regular expression to validate a Phone number
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