WaitForChangedResult 結構

  • 參考

定義

命名空間:
System.IO
組件:
System.IO.FileSystem.Watcher.dll
組件:
System.dll
組件:
netstandard.dll

包含有關發生的變更之資訊。

public value class WaitForChangedResult
public struct WaitForChangedResult
type WaitForChangedResult = struct
Public Structure WaitForChangedResult
繼承
Object
ValueType
WaitForChangedResult

範例

此範例示範如何藉由等候特定檔案變更通知發生，以同步使用 FileSystemWatcher 。

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

屬性

ChangeType

取得或設定發生的變更類型。
Name

取得或設定變更的檔案或目錄的名稱。
OldName

取得或設定重新命名的檔案或目錄的原始名稱。
TimedOut

取得或設定值，指出等候作業是否已逾時。

適用於

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