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Old June 18th, 2007, 11:58 PM
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Default filesystemwatcher problem (very urgent)


This is shailendra.I am using vb 2005 to develop a stock market charting product.
The chart needs to be updated every 5 min or when the data of the specific company gets updated.
To update the chart i have applied filesystemwatcher to do the same.

The problem i am facing is ,when i am trying to open a new window the updation of last highlighted window is disturbed.I cant get the actual problem occuring with the last highlighted window coz the oher unhighlighted windows get updated .

The code i have used is
#Region "Tick update"
    'Procedure to watch the fil with the fom's name
    Private Sub watchnupdate()

        ' Create a new FileSystemWatcher and set its properties.
        Dim watcher As New FileSystemWatcher()

        fs = New FileStream("intrapath.ini", FileMode.Open, FileAccess.Read)
        strread = New StreamReader(fs)
        watcher.Path = strread.ReadLine.Trim & "\Intra5min"

        ' Watch for changes in LastAccess and LastWrite times, and
        ' the renaming of files or directories.
        watcher.NotifyFilter = (NotifyFilters.LastAccess Or NotifyFilters.LastWrite)
        ' Only watch text files.
        watcher.Filter = Me.Name & ".txt" 'applied for specific watch

        ' Add event handlers.
        AddHandler watcher.Changed, AddressOf OnChanged

        ' Begin watching.
        watcher.EnableRaisingEvents = True

    End Sub

    ' Define the event handlers.
    Private Sub OnChanged(ByVal source As Object, ByVal e As FileSystemEventArgs)
        ' Specify what is done when a file is changed, created, or deleted.

        scrolled = True 'This variable is reset to true to draw all the indicators aplied on the chart.

        drawChart(winChartViewer1) 'to redraw the chart

    End Sub

#End Region

Old June 29th, 2007, 03:56 AM
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Send a message via Yahoo to atilak_2001

Dear Shailendra,

I dont think there is any problem with your above code. The problem might be in your drawChart function. Check it first.


Positiveness is in my blood.. I'm O+.

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