Visual Basic: Checking if file exists, if not, create the file

问题

This is the code. It checks if the file in path exists, if not, it creates the file. I'm getting this error message all the time and I don't know why. Maybe I should close the System.IO.Directory.Exists? If yes, how do I do that? Just so you know, I'm creating a text file.

The code

If Not (System.IO.Directory.Exists(path)) Then
        Dim fs3 As FileStream = File.Create(path)
    End If

This is the error message I get:

Process can't use the file (path) because some other process is using this file at the moment.

回答1:

The file is used by other processes hence it can't be overwritten. I suggest you delete the file first.

Dim path As String = "put your path"

For Each path In System.IO.Directory.GetFiles("C:\WINDOWS\TEMP")
System.IO.File.Delete(path)
Next path

Dim fs3 As FileStream = File.Create(path)

Be certain that you have full rights [under properties] to the folder.

来源：https://stackoverflow.com/questions/22936426/visual-basic-checking-if-file-exists-if-not-create-the-file