A String can be created as a verbatim string. Verbatim strings start with @ symbol. The C# compiler understand this type of string as verbatim. Basically the @ symbol tells the string constructor to ignore escape characters and line breaks.
In this article we will understand use of the @ symbol in C# strings.
See here
String Str1 = "";
Str1 = "\\MyServer\TestFolder\NewFolder";
In statement above the compiler gives an error of 'Unrecognized escape sequence', but if we write the code like this:
str2 = @"\\MyServer\TestFolder\NewFolder";
the compiler does not generate an error.
Now we take an another example:
There are two strings, str1 and str2:
String Str1 = "";
String str2 = "";
Str1 = "this is the \n test string";
Output of the str1 is :
str2 = @"this is the \n test string";
output of the str2:
In the case of str2, the compiler will not process the \n when generating the output.
|
this is the \n test string |
The outputs are different and we can easily understand the benefit of @ in strings in the C# language.
The main benefit of this symbol is that escape characters such as \n and \t will not be processed.
Note: MSDN says that a verbatim string literal consists of an @ character followed by a double-quote character, zero or more characters, and a closing double-quote character. A simple example is @"hello". In a verbatim string literal, the characters between the delimiters are interpreted verbatim, the only exception being a quote-escape-sequence. In particular, simple escape sequences and hexadecimal and Unicode escape sequences are not processed in verbatim string literals.