vb.net - 如何检查文件夹中是否已存在文件

Question

我正在尝试将一些文件复制到文件夹。我正在使用以下语句来检查源文件是否存在

 If My.Computer.FileSystem.FileExists(fileToCopy) Then

但我不知道如何在复制之前检查文件夹中是否存在文件。请指教。

谢谢并致以最诚挚的问候，富尔坎

Answer 1

Dim SourcePath As String = "c:\SomeFolder\SomeFileYouWantToCopy.txt" 'This is just an example string and could be anything, it maps to fileToCopy in your code.
Dim SaveDirectory As string = "c:\DestinationFolder"

Dim Filename As String = System.IO.Path.GetFileName(SourcePath) 'get the filename of the original file without the directory on it
Dim SavePath As String = System.IO.Path.Combine(SaveDirectory, Filename) 'combines the saveDirectory and the filename to get a fully qualified path.

If System.IO.File.Exists(SavePath) Then
   'The file exists
Else
    'the file doesn't exist
End If