String.Replace() in .net 1.1 does NOT work!

[Guest]

Hi, guys,

The following source code did not work:

string pathVal = "2006\";
pathVal.Replace("\\", "/");

I still had the value "2006\", not "2006/", the one I expected.

I then tried the second line as:

pathVal.Replace('\', '/');

still no luck.

Any ideas? Thanks.

 

[tjb]

The following source code did not work:

string pathVal = "2006\";
pathVal.Replace("\\", "/");

String.Replace returns (a reference to) a _new_ instance containing the new
value. It does not change the value of the current instance, because it
cannot -- strings are immutable (a string's value cannot be changed). Here
is how to achieve what you're attempting:

string pathVal = "2006\";
pathVal = pathVal.Replace("\\", "/");

 

[Pete Davis]

Actually, String.Replace works just fine.

Try:
pathVal = pathVal.Replace("\\", "/")

Pete

 

[Bob Grommes]

In addition, I believe that the first line needs to be either:

string pathVal = "2006\\";

//or:

string pathVal = @"2006\";

--Bob

 

[Jon Skeet [C# MVP]]

The following source code did not work:

string pathVal = "2006\";
pathVal.Replace("\\", "/");

It worked in that it did what it should have done (nothing) - it just
didn't do what you expected.

I still had the value "2006\", not "2006/", the one I expected.

I then tried the second line as:

pathVal.Replace('\', '/');

still no luck.

Any ideas? Thanks.

Strings are immutable. Calling Replace doesn't change the current
string, it just returns a new one.

Read http://www.pobox.com/~skeet/csharp/strings.html for more about
strings.