VB.Net/File Directory/File System Watcher — различия между версиями

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Текущая версия на 12:45, 26 мая 2010

File System Watcher: File Folder Created

 
Imports System
Imports System.IO
Public Class MainClass
   Shared Private WithEvents m_FileSystemWatcher As FileSystemWatcher
   Shared Sub Main()
        m_FileSystemWatcher = New FileSystemWatcher("C:\")
        m_FileSystemWatcher.EnableRaisingEvents = True
   End Sub 
    " Watch for file creations.
    Shared Private Sub m_FileSystemWatcher_Created(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles m_FileSystemWatcher.Created
        Console.WriteLine(e.FullPath & " created")
    End Sub
End Class


File System Watcher: file updated, created

 
Imports System.IO
Module Module1
    WithEvents Watcher As New FileSystemWatcher("C:\")
    Sub Main()
        Watcher.Filter = "*.*"
        Watcher.IncludeSubdirectories = True
        Watcher.EnableRaisingEvents = True
        Console.ReadLine()
    End Sub
    Sub OnChanged(ByVal From As Object, ByVal e As FileSystemEventArgs) Handles Watcher.Changed
        Dim DateAndTime As DateTime = DateTime.Now
        Console.WriteLine(e.FullPath & " " _
           & e.ChangeType() & " " & DateAndTime)
    End Sub
End Module


File Watcher

  
Imports System.IO
Imports System.Windows.Forms
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Watcher
    Inherits System.Windows.Forms.Form

    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label1 = New System.Windows.Forms.Label
        Me.txtTypes = New System.Windows.Forms.TextBox
        Me.lstNewFiles = New System.Windows.Forms.ListBox
        Me.cmdStop = New System.Windows.Forms.Button
        Me.cmdStart = New System.Windows.Forms.Button
        Me.txtDir = New System.Windows.Forms.TextBox
        Me.SuspendLayout()
        "
        "Label2
        "
        Me.Label2.Location = New System.Drawing.Point(16, 40)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(60, 12)
        Me.Label2.TabIndex = 13
        Me.Label2.Text = "File Types:"
        "
        "Label1
        "
        Me.Label1.Location = New System.Drawing.Point(16, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(40, 12)
        Me.Label1.TabIndex = 12
        Me.Label1.Text = "Path:"
        "
        "txtTypes
        "
        Me.txtTypes.Location = New System.Drawing.Point(76, 36)
        Me.txtTypes.Name = "txtTypes"
        Me.txtTypes.Size = New System.Drawing.Size(264, 21)
        Me.txtTypes.TabIndex = 11
        Me.txtTypes.Text = "*.xls"
        "
        "lstNewFiles
        "
        Me.lstNewFiles.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.lstNewFiles.Location = New System.Drawing.Point(12, 108)
        Me.lstNewFiles.Name = "lstNewFiles"
        Me.lstNewFiles.Size = New System.Drawing.Size(328, 199)
        Me.lstNewFiles.TabIndex = 10
        "
        "cmdStop
        "
        Me.cmdStop.Location = New System.Drawing.Point(228, 68)
        Me.cmdStop.Name = "cmdStop"
        Me.cmdStop.Size = New System.Drawing.Size(112, 24)
        Me.cmdStop.TabIndex = 9
        Me.cmdStop.Text = "Stop Watching"
        "
        "cmdStart
        "
        Me.cmdStart.Location = New System.Drawing.Point(108, 68)
        Me.cmdStart.Name = "cmdStart"
        Me.cmdStart.Size = New System.Drawing.Size(112, 24)
        Me.cmdStart.TabIndex = 8
        Me.cmdStart.Text = "Start Watching"
        "
        "txtDir
        "
        Me.txtDir.Location = New System.Drawing.Point(76, 12)
        Me.txtDir.Name = "txtDir"
        Me.txtDir.Size = New System.Drawing.Size(264, 21)
        Me.txtDir.TabIndex = 7
        Me.txtDir.Text = "d:\orders"
        "
        "Watcher
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(352, 318)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.txtTypes)
        Me.Controls.Add(Me.lstNewFiles)
        Me.Controls.Add(Me.cmdStop)
        Me.Controls.Add(Me.cmdStart)
        Me.Controls.Add(Me.txtDir)
        Me.Font = New System.Drawing.Font("Tahoma", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Name = "Watcher"
        Me.Text = "Watcher"
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents txtTypes As System.Windows.Forms.TextBox
    Friend WithEvents lstNewFiles As System.Windows.Forms.ListBox
    Friend WithEvents cmdStop As System.Windows.Forms.Button
    Friend WithEvents cmdStart As System.Windows.Forms.Button
    Friend WithEvents txtDir As System.Windows.Forms.TextBox
    Private WithEvents Watch As New FileSystemWatcher()
    Private Sub cmdStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdStart.Click
        Watch.Path = txtDir.Text
        Watch.Filter = txtTypes.Text
        Watch.EnableRaisingEvents = True
    End Sub
    Private Sub cmdStop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdStop.Click
        Watch.EnableRaisingEvents = False
    End Sub
    Private Sub Watch_Created(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles Watch.Created
        lstNewFiles.Invoke(New UpdateListDelegate(AddressOf UpdateList), e.Name)
    End Sub
    Private Delegate Sub UpdateListDelegate(ByVal name As String)
    Private Sub UpdateList(ByVal name As String)
        lstNewFiles.Items.Add("New file: " & Name)
    End Sub
End Class