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David - 17 Apr 2008 14:17 GMT

Hi,

I know this isn't a C# group, but its just a quick one.

As a seasoned C++ developer I'm learning C# as I go along. What's the @
symbol for before a string?

eg:

FileInfo myFile = new FileInfo(@"c:\Temp\Test\readme.txt");

Why can't it just be:

FileInfo myFile = new FileInfo("c:\Temp\Test\readme.txt"); ?

Thanks

David

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Leon Mayne - 17 Apr 2008 14:26 GMT

> Hi,
>
[quoted text clipped - 10 lines]
>
> FileInfo myFile = new FileInfo("c:\Temp\Test\readme.txt"); ?

Because it escapes all the characters in the string. It couldn't be the
second example you gave, it would have to be:

FileInfo myFile = new FileInfo("c:\\Temp\\Test\\readme.txt");

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David - 17 Apr 2008 14:29 GMT

S'ok- found out.

Its for treating the '\' marks as '\' marks, not leading characters.

> Hi,
>
[quoted text clipped - 14 lines]
>
> David

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Mark Rae [MVP] - 17 Apr 2008 14:44 GMT

> What's the @ symbol for before a string?

http://www.c-sharpcorner.com/UploadFile/harishankar2005/verbatim_literals1126200
5010742AM/verbatim_literals.aspx

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Mark Rae
ASP.NET MVP
http://www.markrae.net

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Cowboy (Gregory A. Beamer) - 17 Apr 2008 16:49 GMT

It states the string is a literal, warts and all. Without the @, you are
accepting \ as an escape character.

Your second string would fail, as it is not escaping anything valid.

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Gregory A. Beamer
MVP, MCP: +I, SE, SD, DBA

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> Hi,
>
[quoted text clipped - 14 lines]
>
> David

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