How to wirte a char to a specified location in a txt file?

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Hi,Everybody:
In EVB(or VB6), WriteFile() function starts writing data
to the file at the position indicated by the file pointer.
After the write operation has been completed, the file
pointer is adjusted by the number of bytes actually
written. But in VB.net which function can replace it? May
i use System.IO.FileStream.Seek locate the location and
then use System.IO.streamwriter to write char to txt file?

FS = New IO.FileStream(workDir & "\" & appInputFile,
IO.FileMode.Create, IO.FileAccess.Write)

sw = New IO.StreamWriter(FS)

FS.Seek((CurrentPoint - 1) *
FixedLen,IO.SeekOrigin.Current)

sw.Write(string)
 
* said:
In EVB(or VB6), WriteFile() function starts writing data
to the file at the position indicated by the file pointer.
After the write operation has been completed, the file
pointer is adjusted by the number of bytes actually
written. But in VB.net which function can replace it? May
i use System.IO.FileStream.Seek locate the location and
then use System.IO.streamwriter to write char to txt file?

FS = New IO.FileStream(workDir & "\" & appInputFile,
IO.FileMode.Create, IO.FileAccess.Write)

sw = New IO.StreamWriter(FS)

FS.Seek((CurrentPoint - 1) *
FixedLen,IO.SeekOrigin.Current)

sw.Write(string)
Click to expand...

Why not test it on your own?

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

Improve your quoting style:
<http://learn.to/quote>
<http://www.plig.net/nnq/nquote.html>
 
Back
Top