Make Regular Expression Checker in 10 minutes using Asp.net C#

In most of the times we need to make or create a regular expression to find matching patterns from a given string or a file. Many languages support this feature like Javascript and also Asp.net C#. Regular expresion makes our life easy. Few days ago i have done a dataminig project where i found that how much necessary the regular expression is. I understand its power and capability. The developer