Hello Andy ,
If you want an event driven aproach go for the file system watcher as this
can give you an event when a change took place in a file
so also when there are 2 changes within a minute you get 2 change events .
Ofcourse you could also just use a timer , read the file in a string
variabel and compare the 2 strings if the 2 strings are not the same the
file has changed
however this wil cost you more CPU / IO cycles
Use the filesystem watcher to get notified when a change on the file took
place , and then reread / process the file
http://msdn.microsoft.com/en-us/libr...emwatcher.aspx
in the link i provided ( also in your previous post ) there is example code
included
in case you missed it
Public Class Watcher
Public Shared Sub Main()
Run()
End Sub
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")_
Private Shared Sub Run
Dim args() As String = System.Environment.GetCommandLineArgs()
' If a directory is not specified, exit the program.
If args.Length <2 Then
' Display the proper way to call the program.
Console.WriteLine("Usage: Watcher.exe (directory)")
Return
End If
' Create a new FileSystemWatcher and set its properties.
Dim watcher As New FileSystemWatcher()
watcher.Path = args(1)
' Watch for changes in LastAccess and LastWrite times, and
' the renaming of files or directories.
watcher.NotifyFilter = (NotifyFilters.LastAccess Or
NotifyFilters.LastWrite Or NotifyFilters.FileName Or
NotifyFilters.DirectoryName)
' Only watch text files.
watcher.Filter = "*.txt"
' Add event handlers.
AddHandler watcher.Changed, AddressOf OnChanged
AddHandler watcher.Created, AddressOf OnChanged
AddHandler watcher.Deleted, AddressOf OnChanged
AddHandler watcher.Renamed, AddressOf OnRenamed
' Begin watching.
watcher.EnableRaisingEvents = True
' Wait for the user to quit the program.
Console.WriteLine("Press 'q' to quit the sample.")
While Chr(Console.Read()) <"q"c
End While
End Sub
' Define the event handlers.
Private Shared Sub OnChanged(source As Object, e As FileSystemEventArgs)
' Specify what is done when a file is changed, created, or deleted.
Console.WriteLine("File: " & e.FullPath & " " & e.ChangeType)
End Sub
Private Shared Sub OnRenamed(source As Object, e As RenamedEventArgs)
' Specify what is done when a file is renamed.
Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath,
e.FullPath)
End Sub
End Class
Michel Posseth [MCP]
http://www.vbdotnetcoder.com
"Andy B" <a_*****@sbcglobal.netschreef in bericht
news:%2****************@TK2MSFTNGP06.phx.gbl...
What would i use to look for changes in a file every minute?
