how to rollback text

[Hakan Fatih YILDIRIM]

Hi .net gurus,

Is there a way to rollback a text writen to a text file.I made a loop
that writes text in to a text file and if an exception occurs i want
it to rollback the writen texts?I tried Transactionscope but no
effects on writing texts.

Any ideas?

 

[Lav]

The most appropriate solution would be writing the file content on a
memory stream and copy it back
to the file if any exception is thrown.

- Lav G
http://lavbox.blogspot.com

 

[Peter Morris]

01: Create a new file stream with a new filename
02: Copy the original text content into that stream
03: Write your changes
04: Close the stream
05: Use File.Copy(tempFileName, originalFileName, true) to overwrite the
original
06: Delete the temp file - using a finally block ;-)