FileSystemWatcher Control in VB.NET

A visual basic FileSystemWatcher control is used to watch for changes in a specified directory. You can watch for changes in the Files and subdirectories of the specified directory. You can create a component to watch files on a local computer, A network drive or a remote computer. The Filter property of the FileSystemWatcher is used to watch for changes in all the Files. You can also watch for renaming, deletion or creation of files or directories. It sopports several types of changes in a directory or file. In given example changes in Attribute, the Last write Date and Time, or the size of the files or directories. You can do this by setting NotifyFilter property to one of the NotifyFilter Value.
Here we are taking an example that how you can monitor a folder using FileSystemWatcher control. This application monitor specific folder tells you when you create a new file or delete any file that What's happened.

• simply just open a new project 

• Drag one TextBox, one button, two ListView, FolderBrowserDialog and a FileSystemWatcher control on form. The form will look like below.
   
  
  
  
  
  

• Write the given code.
  
      Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
          Me.Text = "shalini"
          Me.BackColor = Color.Ivory
          ListView1.BackColor = Color.LightGray
          ListView2.BackColor = Color.LightGray
          ListView1.ForeColor = Color.Brown
          ListView2.ForeColor = Color.Red
          FileSystemWatcher1.Path = "c:\"
      End Sub
      Private Sub FileSystemWatcher1_Created(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles
          FileSystemWatcher1.Created
          ListView1.Items.Add(e.Name)
      End Sub
      Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
          FolderBrowserDialog1.ShowDialog()
          inp.Text = FolderBrowserDialog1.SelectedPath
          FileSystemWatcher1.Path = inp.Text
      End Sub
      Private Sub FileSystemWatcher1_Deleted(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles
          FileSystemWatcher1.Deleted
          ListView2.Items.Add(e.Name)
      End Sub
  
  Output:-