how to create Regex for string which start with << and end with >>

Question

Hi,

I am usng MVC dot net C# . i need to create a regex for string which start with << and end with >>.

between these angular bracetes anything can be possible string, numeric character, special character, space.

I created one 

System.Text.RegularExpressions.Regex expr = new System.Text.RegularExpressions.Regex(@"<<[\w\s\#\:\,\|]+\>>");

 

but it is not fetching all the tokens.