Clear the content of a file

[Guest]

Hello.
How do you clear the content of a *.txt file?
Thanks.

 

[Derek Harmon]

How do you clear the content of a *.txt file?

System.IO.File.Open( "foo.xml", System.IO.FileMode.Truncate).Close

Bit of an audacious one-liner, but you get the drift. Open the file in truncate
mode, then (as there's nothing really to do in truncate mode after having reset
the file to zero-length) close it.

Opening it with FileMode.Create will also achieve the same thing, and allow
you to use the FileStream afterwards, for instance,

Dim fileStream As System.IO.FileStream
fileStream = System.IO.File.Open( "foo.xml", System.IO.FileMode.Create)
'
' foo.xml is now zero-length, plus use can write to fileStream.
'
fileStream.Flush
fileStream.Close


Derek Harmon

 

[Cor Ligthert]

Jeff,

Derek gave you the answer, however what he did not write in my opinon in
words was.

"Just create an empty one with the same name". (And than use one of his
samples)

Only meant as addition

Cor

 

[Guest]

I see.
Thanks very much, guys.

Xero

Jeff,

Derek gave you the answer, however what he did not write in my opinon in
words was.

"Just create an empty one with the same name". (And than use one of his
samples)

Only meant as addition

Cor

 

[Herfried K. Wagner [MVP]]

How do you clear the content of a *.txt file?

Open the file using 'FileStream' and use its 'SetLength' method to reset the
file's length.