WaitForChangedResult Struktur
Definition
Enthält Informationen zur aufgetretenen Änderung.Contains information on the change that occurred.
public value class WaitForChangedResult
public struct WaitForChangedResult
type WaitForChangedResult = struct
Public Structure WaitForChangedResult
- Vererbung
Beispiele
In diesem Beispiel wird gezeigt, wie FileSystemWatcher eine synchron verwendet werden kann, indem Sie darauf wartet, dass eine bestimmte Datei Änderungs Benachrichtigung auftritt.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
Eigenschaften
ChangeType |
Ruft den Typ der aufgetretenen Änderung ab oder legt diesen fest.Gets or sets the type of change that occurred. |
Name |
Ruft den Namen der geänderten Datei oder des Verzeichnisses ab oder legt diesen fest.Gets or sets the name of the file or directory that changed. |
OldName |
Ruft den ursprünglichen Namen der umbenannten Datei oder des Verzeichnisses ab oder legt diesen fest.Gets or sets the original name of the file or directory that was renamed. |
TimedOut |
Ruft einen Wert ab, der angibt, ob ein Timeout des Wartevorgangs erfolgt ist, oder legt diesen fest.Gets or sets a value indicating whether the wait operation timed out. |