Question

i have a text file like below :

string string
string                 string
string   string
string          string

i want to replace all these spaces with pipe (|) character.
is there any method in c# for doing that?

i am using the below codes for read and write on file :
How do I read and edit a .txt file in C#?

EDIT:
after using the codes in the accepted answer i got the below error in line of
System.IO.File.WriteAllLines( …:

Could not find file ‘C:\Program Files\Common Files\Microsoft
Shared\DevServer\10.0\infilename.txt’.

[Solves by absolute path]

thanks for comments and answers :
not each space with one pipe -> all spaces in each line with one pipe…

thanks in advance

Answer 1

Change the aanund’s answer in:

System.IO.File.WriteAllLines(
    "outfilename.txt",
    System.IO.File.ReadAllLines("infilename.txt").Select(line =>
        string.Join("|",
            line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries)
        )
    ).ToArray()
);