Quantifiers : Regular Expression « Validation « ASP.NET Tutorial






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  3. Regular Expression
Quantifier   Description 
*            Zero or more matches
+            One or more matches
?            Zero or one matches
{N}          N matches
{N,}         N or more matches
{N,M}        Between N and M matches








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