read data line by line from a textfile

Hi: Can any one please tell me how to i read data line by line from a textfile and then write into another textfile?

Thanks.
mustish1Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

VBRocksCommented:
Are you using VB6 or VB.NET?

VB6:  Add a reference to the Microsoft Scripting Runtime Library (scrrun.dll) Project / References.  

Then, code like this:
Dim fso as new FileSystemObject
Dim ts as TextStream
Dim inLine as string

'To Read:
set ts = fso.OpenTextFile("c:\temp\myfile.txt", ForReading)
Do
     inLine = ts.ReadLine
     'Process with your line.
Loop Until ts.AtEndOfStream = True
ts.close

'To Write:
set ts = fso.OpenTextFile("c:\temp\myfile.txt", ForWriting)
ts.WriteLine "Cool!"
ts.Close

Do you need it in VB.NET?

0
mustish1Author Commented:
Thanks only in VB6
0
VBRocksCommented:
Here's VB.NET:
Dim inLine as String

'To read
Dim sr As New System.IO.StreamReader("c:\temp\myfile.txt")
Do
     inLine = sr.ReadLine
Loop until sr.EndOfStream = True
sr.Close

'To write
Dim sw as New System.IO.StreamWriter("c:\temp\myfile.txt")
sw.WriteLine("Cool!")
sw.Close()
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

mustish1Author Commented:
Thanks can you please tell me how to i read one line from firstfile.txt and write into second file.txt until firstfile.txt is at end.

Dim fso as new FileSystemObject
Dim ts as TextStream
Dim inLine as string

'To Read:
set ts = fso.OpenTextFile("c:\temp\firstfile.txt", ForReading)
Do
     inLine = ts.ReadLine
     'Process with your line.
Loop Until ts.AtEndOfStream = True
ts.close

'To Write:
set ts = fso.OpenTextFile("c:\temp\secondfile.txt", ForWriting)
ts.WriteLine "Cool!"
ts.Close
0
VBRocksCommented:
Sure, it's the same, just create 2 variables:

Dim fso as new FileSystemObject
Dim tsRead as TextStream
Dim tsWrite as TextStream
Dim inLine as String

set tsRead = fso.OpenTextFile("c:\temp\firstfile.txt", ForReading)
set tsWrite = fso.OpenTextFile("c:\temp\secondfile.txt", ForWriting)

Do
     'Read the line from the firstfile
     inLine = tsRead.ReadLine

     'Write the line to the secondfile
     tsWrite.WriteLine inLine

Loop Until tsRead.AtEndOfStream = True

tsRead.close
tsWrite.close

Let me know if you have any other questions!
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
VBRocksCommented:
Don't forget to add the Project Reference, or you won't be able to use the FileSystemObject:

Add a reference to the Microsoft Scripting Runtime Library (scrrun.dll) Project / References.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic Classic

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.