My advice is to keep it simple.
1) You need a systemfilewatcher for every drive or folder unless you want to
watch all sub directories under a top level folder.
2) Set the filter to "*.txt" and then check the filename in the trapped event.
3) Don't do anything that you don't have to do in the event. If you need to
record the filename, write a text file on the same drive that you are
monitoring instead of writing to database. If you have to write to database,
do it in another program or thread that is reading the text file. This way
you minimize the time that you spend in the event and you know that it will
be successful as long as the drive you are monitoring is up. Just make sure
that you don't monitor the folder in which you are writing the text file.
Take a look at these articles
http://www.knowdotnet.com/articles/filewatcherservice.html http://www.knowdotnet.com/forums/post.asp?method=ReplyQuote&REPLY_ID=318&TOPIC_ID=245&FORUM_ID=9 HTH
Les@KnowDotNet.com
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http://www.knowdotnet.com/articles/VisualOrganizerProductHome.html [quoted text, click to view] "Nicolas" wrote:
> Doesn't run properly.
> I made one dll which monitor file and send back an event for status on
> changes. I use the IO.FileSystemWatcher
>
> From the window form I want to check 5 txt file in particular
> (fi_1.txt,fi_2.txt,fi_3.txt,fi_4.txt,fi_5.txt) of course not residing on the
> same directory or computer.
> The idea was to do the following but It doesn't work that well. For only one
> file is file it's perfect. But after, it is not clear for me, So I may need
> help there.
> Dim i As Integer = 0
> Dim WithEvents ed_checkFile As ED_myDll_Interface
>
> Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles Button8.Click
> i += 1
> Dim t As New Threading.Thread(AddressOf setTHREAD1)
> obj.Add(t)
> t.Start()
> End Sub
>
> Sub setTHREAD1()
> Dim path As String = "D:\Development2\TEST"
> Dim file As String = "fi_" & i & ".txt"
> checkFile = New myDll(path, file)
> End Sub
>
> Private Sub ed_checkFile_Command(ByVal Command As myDll.Command) Handles
> ed_checkFile.Command
> Me.Label1.Text = "Command:" & Command.Code & " --- Type" &
> Command.Type.ToString
> End Sub
>
> Is there a nicest way to monitor multiple specific file as the same time?
>
> Thank you
>
>
