3 uses of the @ Symbol in c#

1. You can use one of the reserved words of c# with the @ symbol

Eg :

string @int = "senthil kumar";

or something like this

string @class ="MCA";

Although you can use this , avoid using one.

2. Before a string specially when using the file paths .

You can use

string filepath = @"D:\SENTHIL-DATA\myprofile.txt";

instead of

string filepath = "D:\\SENTHIL-DATA\\myprofile.txt";

3. For a Multi lined text

string ThreeIdiots = @"Senthil Kumar,
Norton Stanley,
and Pavan Rao!";

MessageBox.Show(ThreeIdiots);

instead of

string ThreeIdiots = @"Senthil Kumar,\n   Norton Stanley,and Pavan Rao!";

This is what the c# Language specification states about the @ Symbol

“The prefix “@” enables the use of keywords as identifiers, which is useful when interfacing with other programming languages. The character @ is not actually part of the identifier, so the identifier might be seen in other languages as a normal identifier, without the prefix. An identifier with an @ prefix is called a verbatim identifier. Use of the @ prefix for identifiers that are not keywords is permitted, but strongly discouraged as a matter of style.”

Interesting symbol isn’t it ??

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9 thoughts on “3 uses of the @ Symbol in c#

  1. #2 and #3 are the same thing – using the verbatim string syntax allows assigning strings that are exactly as written, including backslashes and line breaks.

    Also, assuming you’re on Windows (not Mono), the line break in your example is likely rn, not just n.

  2. Pingback: 3 uses of the @ Symbol in c# | ProgramInDotnet

  3. Pingback: Interesting .NET Links - January 26 , 2011 | TechBlog

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