mi si avvicinò con il seguente metodo di estensione DirectoryInfo che avvolge il metodo DirectoryInfo.Delete nativo() e tenta di "tranquillamente cancellare" nella cartella specificata:
Questo metodo richiede il seguente riferimento COM: Microsoft Internet Controls x
'''' <summary>
'''' Attempts to perform a "Safe delete" by searching for any Windows File Explorer instances attached to the extended DirectoryInfo Object
'''' and navigate those instances off the current DirectoryInfo path in an attempt to prevent a "Directory is not empty" IOException when
'''' calling DirectoryInfo.Delete(recursive).
'''' </summary>
'''' <param name="DirectoryInfo">The DirectoryInfo object being extended</param>
'''' <param name="recursive">Optional: true to delete this directory, its subdirectories, and all files; otherwise false</param>
'''' <returns>A Boolean indicating whether the DirectoryInfo.Delete(recursive) operation completed without an Exception</returns>
'''' <remarks>Authored by CMC 2013-05-06 12:04:25 PM</remarks>
<System.Runtime.CompilerServices.Extension()> _
Public Function TrySafeDelete(ByVal [DirectoryInfo] As DirectoryInfo, Optional ByVal recursive As Boolean = False, Optional ByVal retryCount As Integer = 0) As Boolean
Const maxRetryCount As Integer = 10
retryCount = If(retryCount < 0, 0, retryCount)
Dim success As Boolean = True
If ([DirectoryInfo] IsNot Nothing) Then
[DirectoryInfo].Refresh()
Dim msWinShellIExplorerWindowsLockingCurrentDirectory As Dictionary(Of SHDocVw.InternetExplorer, DirectoryInfo) = New Dictionary(Of SHDocVw.InternetExplorer, DirectoryInfo)
If ([DirectoryInfo].Exists()) Then
Try
Dim msWinShellIExplorerWindows As SHDocVw.ShellWindows = New SHDocVw.ShellWindows()
For Each msWinShellIExplorerWindow As SHDocVw.InternetExplorer In msWinShellIExplorerWindows
If (msWinShellIExplorerWindow.Name.Equals("windows explorer", StringComparison.OrdinalIgnoreCase)) Then
Dim locationValue As String = msWinShellIExplorerWindow.LocationURL()
If (locationValue.Length() > 0) Then
Dim locationURI As Uri = Nothing
If (Uri.TryCreate(locationValue, UriKind.RelativeOrAbsolute, locationURI)) Then
Dim msWinShellDirectoryInfo As DirectoryInfo = New DirectoryInfo(locationURI.LocalPath())
Dim isLockingCurrentDirectory As Boolean = msWinShellDirectoryInfo.FullName.ToLower().Contains([DirectoryInfo].FullName.ToLower())
If (isLockingCurrentDirectory AndAlso Not msWinShellIExplorerWindowsLockingCurrentDirectory.ContainsKey(msWinShellIExplorerWindow)) Then msWinShellIExplorerWindowsLockingCurrentDirectory.Add(msWinShellIExplorerWindow, msWinShellDirectoryInfo)
End If
End If
End If
Next
Dim navigateCompleteCount As Integer = 0
If (msWinShellIExplorerWindowsLockingCurrentDirectory.Any()) Then
For Each msWinShellDirectoryEntry As KeyValuePair(Of SHDocVw.InternetExplorer, DirectoryInfo) In msWinShellIExplorerWindowsLockingCurrentDirectory
Dim msWinShellIExplorerWindow As SHDocVw.InternetExplorer = msWinShellDirectoryEntry.Key()
Dim msWinShellDirectoryInfo As DirectoryInfo = msWinShellDirectoryEntry.Value()
AddHandler msWinShellIExplorerWindow.NavigateComplete2, New SHDocVw.DWebBrowserEvents2_NavigateComplete2EventHandler(Sub(pDisp As Object, ByRef URL As Object)
navigateCompleteCount += 1
If (navigateCompleteCount.Equals(msWinShellIExplorerWindowsLockingCurrentDirectory.Count())) Then
With [DirectoryInfo]
.Delete(recursive)
.Refresh()
End With
End If
End Sub)
msWinShellIExplorerWindow.Navigate2(New Uri(msWinShellDirectoryInfo.Root.FullName()).AbsoluteUri())
Next
Else
With [DirectoryInfo]
.Delete(recursive)
.Refresh()
End With
End If
Catch ex As Exception
End Try
[DirectoryInfo].Refresh()
If ([DirectoryInfo].Exists() AndAlso (retryCount <= maxRetryCount)) Then
[DirectoryInfo].TrySafeDelete(recursive, retryCount + 1)
End If
success = Not DirectoryInfo.Exists()
End If
End If
Return success
End Function
Si noti che questo è il comportamento standard della shell. Otterrete lo stesso messaggio di errore da 'rmdir/S'. Immagino che la cancellazione non funzioni perché Explorer ha ancora un handle per la sottocartella aperta. –
@ 0xA3 - Non è coerente. Vedi il mio commento sulla risposta qui sotto. Ci sono casi in cui posso eliminare una cartella mentre la guardo in Windows Explorer e quindi Explorer solo navs nella cartella padre del figlio che è stata cancellata. –
@ToddMain So che questo è vecchio ma apprezzerò davvero se è possibile pubblicare la soluzione per questo. –