Replace line feed (LF) characters in a String using VB.NET

Question

The obvious doesn't catch the LF characters

foo.Replace(Environment.NewLine, String.Empty)

Nor does...

foo.Replace("\r\n", "").Replace("\n", "").Replace("\r", "")

The file itself is a multi line XML file. Line feed characters before the XML declaration invalidate the string.

What is the value of "replacewith", and how are you using the code above. You have posted only a tiny fragment of what you want, and not a "complete code" - it is hard to know what you're looking for. — Steven_W, Mar 10 '10 at 17:33
My bet is that you are after a wrong problem. Possibly you've got a BOM at the beginning or other such problem? Make sure that it actually is a newline that you are dealing with. — Tronic, Mar 10 '10 at 17:33
Fixed flaws in the question. nobugz - meant to say line feeds. Steven_W - removed the variable reference. Stewbob - will try that, good thought. — mmcglynn, Mar 10 '10 at 17:37

score 7 · Answer 1 · answered Mar 10 '10 at 17:37

7

VB.NET doesn't use the C style escapes for CR or LF. In VB, your second example translates to:

foo.Replace(vbNewLine, replaceWith).Replace(vbLF, replaceWith).Replace(vbCR, replaceWith)

answered Mar 10 '10 at 17:37

Mark Brackett

+1 Obviously it needs to be `bah=foo.Replace(...)` as Replace doesn't change the string – MarkJ Mar 10 '10 at 17:49
just to add, foo = foo.Replace if you want the contents of foo to change – CResults Mar 10 '10 at 17:49

1 Answers1