递归重命名VB.NET

时间:2016-02-29 02:26:50

标签: vb.net recursion filesystemwatcher

我正在创建一个重命名文件夹和文件的应用程序,它的概念是这样的,我有两个备份文件夹,它们具有相同的内容,让我们来看看。 s说Backup1Backup2,如果我在Backup1中重命名子文件夹,则应重命名子文件夹 IN Backup2。我使用FileSystemWatcher来监控正在重命名的文件

Sub FileLogs()
    watchfolder = New System.IO.FileSystemWatcher()

    Dim src As String = Label5.Text

    watchfolder.Path = src
    watchfolder.IncludeSubdirectories = True

    watchfolder.NotifyFilter = IO.NotifyFilters.DirectoryName
    watchfolder.NotifyFilter = watchfolder.NotifyFilter Or IO.NotifyFilters.FileName

    AddHandler watchfolder.Renamed, AddressOf logrename
    'Start monitoring for renames of folders and files
    watchfolder.EnableRaisingEvents = True
End Sub

并将监控重命名的项目存储在List(Of String)

Dim oldItemName As New List(Of String)
Dim newItemName As New List(Of String)
Private Sub logrename(ByVal source As Object, ByVal e As System.IO.RenamedEventArgs)
    oldItemName.Add(e.OldName)
    newItemName.Add(e.Name)
End Sub

这是重命名的地方。

Dim dest As String = Label6.Text
    For i = 0 To Math.Min(oldItemName.Count - 1, newItemName.Count) - 1
        Try
            My.Computer.FileSystem.RenameDirectory(Path.Combine(dest, oldItemName(i)), newItemName(i))
        Catch ex As Exception
            MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End Try
    Next

此代码仅适用于Backup2\,但如果我重命名Backup1\Folder\SUB内的文件夹,则Backup2\Folder\SUB中的文件夹无法重命名。它会抛出ArgumentException Argument 'newName' must be a name, and not a relative or absolute path: 'Folder\SUB1'. Parameter name: newName

我认为它的作用是将SUB中的Backup2重命名为Folder\SUB,这是因为它有错误的原因,因为watchfolder.IncludeSubdirectories = True受监视的子文件夹存储为Folder\SUB,因为路径很好。但是我该如何正确地重命名呢?以及如何递归地执行此操作并重命名多个项目?

1 个答案:

答案 0 :(得分:0)

For i = 0 To Math.Min(oldItemName.Count - 1, newItemName.Count) - 1

应该是

For i = 0 To Math.Min(oldItemName.Count - 1, newItemName.Count - 1)