Opinion on how best to wait for a file

[john bailo]

I'm writing a program to monitor the operation of a process.

Part of the process involves trigging a method,
then waiting for the creation of a flag file. I
want my code to pause at that point.

How would you recomment waiting and monitoring.
I can think of two ways:

0. Start a timer.
1. Raise an event to check for File.Exists("")
2. If File.Exists then Timer.Enabled=false.
Or

Do a while loop, with while(File.Exists())

What do you guys recommend?

[Bryan Martin]

Do a groups.google.com search on "systemfilewatcher" namespace.

Bryan
"john bailo" <jb****@vestcom.com> wrote in message
news:77******************************@news.teranew s.com...

I'm writing a program to monitor the operation of a process.

Part of the process involves trigging a method,
then waiting for the creation of a flag file. I
want my code to pause at that point.

How would you recomment waiting and monitoring.
I can think of two ways:

0. Start a timer.
1. Raise an event to check for File.Exists("")
2. If File.Exists then Timer.Enabled=false.
Or

Do a while loop, with while(File.Exists())

What do you guys recommend?

[Tim Stephenson]

The Filesystemwatcher object is designed to do this, and will raise an event
when a file is created / modified / deleted within a specicified directory.
Get your code to start the watcher, then call the code you need to run once
the file's created in the handler for the appropriate event.

--

Regards

Tim Stephenson MCSD.NET
Charted MCAD & MCSD.NET Early Achiever
"john bailo" <jb****@vestcom.com> wrote in message
news:77******************************@news.teranew s.com...

I'm writing a program to monitor the operation of a process.

Part of the process involves trigging a method,
then waiting for the creation of a flag file. I
want my code to pause at that point.

How would you recomment waiting and monitoring.
I can think of two ways:

0. Start a timer.
1. Raise an event to check for File.Exists("")
2. If File.Exists then Timer.Enabled=false.
Or

Do a while loop, with while(File.Exists())

What do you guys recommend?