Commonly Used Regular Expression for Validation Control in Asp.Net

In this tutorial, We have list out Some commonly used regular expressions for RegularExpressionValidator Control in Asp.Net

Content	Regular Expression	Description
Email Address	\S+@\S+\.\S+	Defines an email address that requires an at symbol (@) and a dot (.), and only allows non white space characters.
Password	\w+	Defines a password that allows any sequence of word characters (letter, space, or underscore).
Specific-length password	\w{4-10}	Defines a password that must be at least four characters long but no longer than ten characters.
Advance Password	[a-zA-Z]\w{3,9}	Defines a password that allows four to ten total characters, as with the specific-length password. The twist is that the first character must fall in the range of a-z or A-Z (that is to say, it must start with a nonaccented ordinary letter).
Another Advance Password	[a-zA-Z]\w*\d+\w*	Defines a password that starts with a letter character, followed by zero or more word characters, one or more digits, and then zero or more word characters. In short, it forces a password to contain a number somewhere inside it. You could use a similar pattern to require two numbers or any other special character.
Limited length field	\S{4,10}	Defines a string of four to ten characters (like the password example), but it allows special characters (asterisks, ampersands, and so on).
Social Security Number	\d{3}-\d{2}-\d{4}	Defines a sequence of three, two, and then four digits, with each group separated by a hyphen. A similar pattern could be used when requiring a phone number.