WaitForChangedResult Struct

Definizione

Contiene informazioni sulle modifiche effettuate.Contains information on the change that occurred.

public value class WaitForChangedResult
public struct WaitForChangedResult
type WaitForChangedResult = struct
Public Structure WaitForChangedResult
Ereditarietà
WaitForChangedResult

Esempio

Questo esempio illustra come usare un FileSystemWatcher in modo sincrono attendendo che venga eseguita una notifica di modifica del file specifica.This example shows how to use a FileSystemWatcher synchronously by having it wait for a specific file change notification to occur.

Imports System.IO

Module Module1
    Sub Main()
        ' Define a path and a file name for a temporary file.
        Dim pathname As String = "C:\"
        Dim filename As String = "JunkFile.tmp"
        Dim filepathname As String = Path.Combine(pathname, filename)

        ' Create the temporary file and then close it.
        File.Create(filepathname).Close()

        Console.WriteLine("This application will terminate when you delete the {0} file", filepathname)

        ' Have a FileSystemWatcher monitor the path and file for changes.
        Dim fsw As New FileSystemWatcher(pathname, filename)
        fsw.NotifyFilter = NotifyFilters.FileName
        fsw.EnableRaisingEvents = True

        ' Suspend the calling thread until the file has been deleted.
        Dim cr As IO.WaitForChangedResult = fsw.WaitForChanged(WatcherChangeTypes.Deleted)

        ' Tell the user the file is deleted and exit.
        Console.WriteLine("The {0} files is deleted; program is exiting", cr.Name)
    End Sub
End Module

' This code produces the following output.
' 
'  This application will terminate when you delete the C:\JunkFile.tmp file
'  The JunkFile.tmp files is deleted; program is exiting

Proprietà

ChangeType

Ottiene o imposta il tipo di modifica apportata.Gets or sets the type of change that occurred.

Name

Ottiene o imposta il nome del file o della directory modificata.Gets or sets the name of the file or directory that changed.

OldName

Ottiene o imposta il nome originale del file o della directory rinominata.Gets or sets the original name of the file or directory that was renamed.

TimedOut

Ottiene o imposta un valore che indica se si è verificato il timeout dell'operazione di attesa.Gets or sets a value indicating whether the wait operation timed out.

Si applica a

Vedi anche