Question

我一直在网上搜索，发现了很多有关复制文件的帖子，但是我对在子文件夹中复制文件没有运气。我想要做的是提供一个sourcePath和一个destinationPath。所有文件（包括子文件夹中的文件）都将被复制到destinatioPath中。我摆弄了很多代码，但是无法搜索到子文件夹。

我尝试的代码：但是在文件复制行中的“目标”上出现了一个错误。

Public Sub CopyAllFiles(ByVal sourcePath As String, ByVal destPath As String)
    Dim files() As String = IO.Directory.GetFiles(destPath)

    For Each file As String In files
        ' Do work, example            
        Dim dest As String = Path.Combine(destPath, Path.GetFileName(file))
        file.Copy(file, dest, True)  ' Added True here to force the an overwrite 
    Next
End Sub

我尝试过的代码，但它将子文件夹移至desinationPath

    Public Sub CopyDirectory(ByVal sourcePath As String, ByVal destinationPath As String)
    Dim sourceDirectoryInfo As New System.IO.DirectoryInfo(sourcePath)

    ' If the destination folder don't exist then create it
    If Not System.IO.Directory.Exists(destinationPath) Then
        System.IO.Directory.CreateDirectory(destinationPath)
    End If

    Dim fileSystemInfo As System.IO.FileSystemInfo
    For Each fileSystemInfo In sourceDirectoryInfo.GetFileSystemInfos
        Dim destinationFileName As String =
        System.IO.Path.Combine(destinationPath, fileSystemInfo.Name)

        ' Now check whether its a file or a folder and take action accordingly
        If TypeOf fileSystemInfo Is System.IO.FileInfo Then
            System.IO.File.Copy(fileSystemInfo.FullName, destinationFileName, True)
        Else
            ' Recursively call the mothod to copy all the neste folders
            CopyDirectory(fileSystemInfo.FullName, destinationFileName)
        End If
    Next
End Sub

我也尝试过这段代码，因为它没有提供子文件夹中的文件

Private Function CopyDirectory(sourcedir As String, targetdir As String, overwrite As Boolean) As List(Of String)
    Dim failedCopy As List(Of String) = New List(Of String)

    Directory.CreateDirectory(targetdir)

    Dim files = Directory.GetFiles(sourcedir, "*.*", SearchOption.AllDirectories)
    For Each file In files
        Dim newfile = file.Replace(sourcedir, targetdir)
        Dim fi = New FileInfo(file)
        Try
            fi.CopyTo(newfile, overwrite)
        Catch ex As Exception
            failedCopy.Add(file)
        End Try

    Next
    Return failedCopy
End Function

Answer 1

这应该使您更加亲近

Private Sub DirTestCopyButton_Click(sender As Object, e As EventArgs) Handles DirTestCopyButton.Click

    Try
        CopyDirectoryContents("c:\temp\", "c:\out")
        MessageBox.Show("Copy complete")
    Catch ex As Exception
        MessageBox.Show(String.Concat("An error occurred: ", ex.Message))
    End Try

End Sub

Private Sub CopyDirectoryContents(sourcePath As String, destinationPath As String)

    If Not Directory.Exists(sourcePath) Then
        Return
    End If

    If Not Directory.Exists(destinationPath) Then
        Directory.CreateDirectory(destinationPath)
    End If

    For Each filePathString As String In Directory.GetFiles(sourcePath, "*.*", SearchOption.AllDirectories)

        Dim fileInfoItem As New FileInfo(filePathString)
        Dim newFilePath As String = Path.Combine(destinationPath, fileInfoItem.Name)
        If File.Exists(newFilePath) Then
            'do something about this 
        Else
            File.Copy(filePathString, newFilePath)
        End If

    Next

End Sub

将子文件夹中的所有文件复制到新文件夹中

1 个答案: