Regular Expression Library

Test Your Regular Expressions

New Silverlight Tester

Singleline

Case Insensitive

Multiline

Ignore Whitespace in Expression

Explicit Capture

URL

File

Source

Regular Expression
<asp:requiredfieldvalidator(\s*\w+\s*=\s*\"?\s*\w+\s*\"?\s*)+\s*>\s*<\/asp:requiredfieldvalidator>