Regex & \n

[Svinja]

Hi,
I want to replace "\n" with "!" in c#, i tried this:

String buffer=richTextBox.Text;
buffer=buffer.Replace(@"\n", "!");
 

and it worked, but this didnt:

 
String buffer=richTextBox.Text;
buffer = Regex.Replace(buffer, @"\n", "!");
 

why?

[balame2004]

Hi,
I want to replace "\n" with "!" in c#, i tried this:

String buffer=richTextBox.Text;
buffer=buffer.Replace(@"\n", "!");
 

and it worked, but this didnt:

 
String buffer=richTextBox.Text;
buffer = Regex.Replace(buffer, @"\n", "!");
 

why?

Hi,

Regex.Replace is working fine for me. Let me know with full source code so i can able to find out the issue.

Regards,
Balaji U

[Svinja]

String buffer=richTextBox.Text;
buffer = Regex.Replace(buffer, @"\n", "!");
//buffer=buffer.Replace(@"\n", "!");
MessageBox.Show(buffer);
 

there it is mate, as you can see i am geting text from richtextbox but if i put the text in the string manually like this:

buffer = Regex.Replace("a\nb", @"\n", "!");

then it works. I guess it has something to do with the fact that \n is single char and regex works only with strings, i really dont understand this.

[Svinja]

ok i figured it out, once again, the solution was hiding in the MSDN. It turns out that "\" is a special char for regex.replace so i cant use it. If i want to match "\" i must use "\\" like this:

String buffer=richTextBox.Text;
buffer = Regex.Replace(buffer, @"\\n", "!");
MessageBox.Show(buffer);
 

but anyway thx for answering.