Viewing TXT file while app is in runtime.

[Marty]

Hi,

When writing to a text file from my application using this object:

Dim FileStream As New FileStream(strFileName, FileMode.Append,
FileAccess.Write, FileShare.ReadWrite)

ioFileOUT = New StreamWriter(FileStream)
ioFileOUT.WriteLine(strLine)

If I try to view the txt file (witn notepad) while the program it is
still running, it seem that I see only the file partially.

But when my app is terminated and the ioFileOUT.Close() is called, then
if I open the txt file, I see the whole content.

How can I make it to be able to see the whole content during the runtime?

I don't want to open/close the txt file each time the ioFileOut object
call it, because it is heavy time/CPU consuming for my needs.

Thanks very much.

Marty

 

[jenksman]

Marty,
You need to call the "Flush" method of the StreamWriter in order to
flush the data that is in memory to the file.

Example:
ioFileOUT.WriteLine(strLine)
ioFileOUT.Flush()

I wouldn't recommend using the Flush() method after every line of code
you write because you will take a major performance hit if you are
writing large amounts of data to the file.

Regards,
David R. Jenkins

 

[JenksMan]

Marty,
You need to call the "Flush()" method of the StreamWriter:

ioFileOUT.Flush()

It is not a good idea to always call the Flush() method after each line
of data you write. You will take a major performance hit on your
program if you are writing large amounts of data.
Regards,
David R. Jenkins

 

[Marty]

Thanks you David,

Have a nice day!

Marty