WaitForChangedResult 结构

定义

包含发生的更改信息。Contains information on the change that occurred.

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

示例

此示例演示如何通过等待特定FileSystemWatcher文件更改通知发生来同步使用。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

属性

ChangeType

获取或设置已发生更改的类型。Gets or sets the type of change that occurred.

Name

获取或设置已更改的文件或目录的名称。Gets or sets the name of the file or directory that changed.

OldName

获取或设置重命名的文件或目录的原始名称。Gets or sets the original name of the file or directory that was renamed.

TimedOut

获取或设置指示等待操作是否已超时的值。Gets or sets a value indicating whether the wait operation timed out.

适用于

另请参阅