File Pointer

[gorilla]

I need some help on opening files and pointing to particular lines in files

 

 

For example I had a text file called

text1.txt

----start of file-----

one

two

three

four

five

---end of file----

 

How can I copy the entire third line into a file called output.txt?

 

so the outcome of this command would be

 

output.txt

---start of file---

three

---end of file---

 

how would i implement something like this in VB? thanks for your time :)

[Bucky]

The StreamReader class has a ReadLine method, which reads the

file one line at a time. Create a new FileStream to the file, make

a new StreamReader to read that stream, then read the line

twice to advance it two lines. Then read the third line, set it to a

var, and close all the streams.

 

Make sure you import System.IO

Dim fs As New FileStream("file path")
Dim reader As New StreamReader(fs)
Dim i As Integer
Dim thirdLine As String

reader.ReadLine() ' Read the first line
reader.ReadLine() ' Read the second line

thirdLine = reader.ReadLine() ' Read the third line and set it to a variable

' Clean up
reader.Close()
fs.Close()

 

If you wanted, you could also read the entire file into a variable,

split it up by newline characters in an array, then access the

specific array element to get that line.