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01.17.2008 at 10:04AM PST, ID: 23090978
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9.8

textbox Thread exeption error

Asked by judsonhh in Visual Basic Programming, .NET

Tags:

I've written a program (with help from a really great EE user) and its having a small problem. I'm getting an error (InvalidOperationExeption) on the logchange Sub at the MntrText.Text line. This line simply displays the folder move to the MntrText textbox. Any Ideas?Start Free Trial 
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Imports System.IO
Imports System.Diagnostics
 
Public Class Form1
 
    Public watchfolder As FileSystemWatcher
 
    Private Sub cmdBrowseSrc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBrowseSrc.Click
        If FolderBrowserDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
            lblSrc.Text = FolderBrowserDialog.SelectedPath
        End If
    End Sub
 
    Private Sub cmdBrowseDest_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdBrowseDest.Click
        If FolderBrowserDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
            lblDest.Text = FolderBrowserDialog.SelectedPath
        End If
    End Sub
 
    Private Sub cmdStart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdStart.Click
        If Directory.Exists(lblSrc.Text) Then
            FileSystemWatcher1.Path = lblSrc.Text
        End If
 
        watchfolder = New System.IO.FileSystemWatcher()
        watchfolder.Path = lblDest.Text
        watchfolder.NotifyFilter = IO.NotifyFilters.DirectoryName
        watchfolder.NotifyFilter = watchfolder.NotifyFilter Or _
                                   IO.NotifyFilters.FileName
        watchfolder.NotifyFilter = watchfolder.NotifyFilter Or _
                                   IO.NotifyFilters.Attributes
 
 
        AddHandler watchfolder.Changed, AddressOf logchange
        AddHandler watchfolder.Created, AddressOf logchange
        AddHandler watchfolder.Deleted, AddressOf logchange
 
 
        watchfolder.EnableRaisingEvents = True
 
        cmdStart.Enabled = False
        btn_stop.Enabled = True
 
    End Sub
    Private Sub logchange(ByVal source As Object, ByVal e As  _
                        System.IO.FileSystemEventArgs)
        If e.ChangeType = IO.WatcherChangeTypes.Created Then
            MntrText.Text &= "File " & e.FullPath & _
                                     " has been created" & vbCrLf
        End If
    End Sub
 
    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        FileSystemWatcher1.Filter = "*.ocl"
 
    End Sub
 
    Private Sub FileSystemWatcher1_Created(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles FileSystemWatcher1.Created
        If Directory.Exists(lblSrc.Text) And Directory.Exists(lblDest.Text) Then
            File.Move(e.FullPath, Path.Combine(lblDest.Text, Path.GetFileName(e.FullPath)))
        End If
    End Sub
 
    Private Sub btn_stop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_stop.Click
 
        watchfolder.EnableRaisingEvents = False
        cmdStart.Enabled = True
        btn_stop.Enabled = False
    End Sub
End Class
[+][-]01.17.2008 at 10:20AM PST, ID: 20683823

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[+][-]01.17.2008 at 10:42AM PST, ID: 20684042

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[+][-]01.17.2008 at 10:53AM PST, ID: 20684137

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[+][-]01.17.2008 at 03:05PM PST, ID: 20686477

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About this solution

Zones: Visual Basic Programming, .NET
Tags: error
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Solution Provided By: Idle_Mind
Participating Experts: 2
Solution Grade: A
 
 
 
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