[RESOLVED] Streamwiter/Reader

Hi,

I have a project where numerical data which is entered into text and combo boxes forms the string 'values' and needs to be written to a sales file and then read from this file to produce a sales report at the same time when the 'Store' buton is clicked at the bottom of the form. I'm trying to use the Streamwriter and StreamReader classes to achieve this. The MSDN help is confusing me - does anyone know of some good online reference material for these classes? Any help would be appreciated.

Here is a good example.

Its free...
http://yourcodes.com/index/modules.p...download&cid=8

Its called .txt writer.

Look at that source code.

To Read Files

At the top of your file

VB Code:

Imports System.IO

then in the event

VB Code:

Dim sr as StreamReader
sr = io.file.OpenText(filepath)
Dim al as New ArrayList
 
Do While sr.peek <> -1
al.add(sr.readline)
Loop
 
sr.DiscardBufferedData
sr.close

to write the values back

VB Code:

Dim sw as StreamWriter
If IO.file.exists(filepath) = False Then
sw = io.file.CreateText(filepath) 'If you want to create a text
Else
sw = io.file.AppendText(filepath)
Endif
 
sw.writeline("Blah blah blah")
 
sw.flush
sw.close
sw = nothing

Thanks a lot for your help - it's proven really useful!