Unrecognisable escape sequence error

Question

I just attached my database from some other computer to my computer.everything worked fine except of this data source.It is giving an error "Unrecognizable escape sequence".

I think the error is because of the back slash but I don't know how can I resolve it because my computer's server name is this only.Please help.

SqlConnection con = new SqlConnection("data source=APOORVA\SQLEXPRESS;initial catalog=mall inventory;integrated security=true");

Answer 1

尝试这个。

SqlConnection con = new SqlConnection(@"data source=APOORVA\SQLEXPRESS;initial catalog=mallinventory;integrated security=true");

Answer 2

The compiler was seeing \\S , and trying to interpret it as an escape-sequence (because it starts with a \\ ).

Either escape the backslash by doubling it:

SqlConnection con = new SqlConnection("data source=APOORVA\\SQLEXPRESS;initial catalog=mallinventory;integrated security=true");

Or use a verbatim string:

SqlConnection con = new SqlConnection(@"data source=APOORVA\SQLEXPRESS;initial catalog=mallinventory;integrated security=true");

Answer 3

in the case of unrecognized escape sequence you need to do this :
"...\\\\SQLEXPRESS;..."
or as Harvey mentioned :
@"...\\SQLEXPRESS;..."
they are both the same.