Regex not working in C# though working in Javascript

Question

I have a regex which is working fine in Javascript

var dbId = "Test/Detail[@Name='ok'][@Details='ok2']/Submit";
dbId.replace(/(?:\[@Name='.+?'\]|\[@Details='.+?'\])/g,"");

But when i am trying it in C# it is not working

C#

Regex.Replace(dbId, @"(?:\[@Name='.+?'\]|\[@Details='.+?'\])", String.Empty);

Please help

Why do you have the @ outside your string in the C# code, this is used in the method docs only some of the time, and the reasoning is not explained. It could be causing your issues. msdn.microsoft.com/en-us/library/e7f5w83z.aspx — Robadob
– Robadob, Commented Jul 30, 2013 at 15:46
Help us to help you. What is not working? Are you getting compilation error? Not behaving right? Explain the problem. Provide error messages. — iraSenthil
– iraSenthil, Commented Jul 30, 2013 at 15:47
@Robadob, @ creates a string literal, meaning anything inside the quotes is a valid character. It saves you escaping chars. — Ash Burlaczenko
– Ash Burlaczenko, Commented Jul 30, 2013 at 15:49

I4V · Accepted Answer · 2013-07-30 15:51:11Z

12

Strings are immutable, so replacement isn't done in place.

dbId = Regex.Replace(dbId, @"(?:\[@Name='.+?'\]|\[@Details='.+?'\])", String.Empty);

Assign the result back to dbId

Result: Test/Detail/Submit

answered Jul 30, 2013 at 15:51

I4V

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2 Comments

+1, You don't know how many times I've done this exact same thing.

Thanks for the help it works!! As i read the reply from 14V banged my head to the desk.