Question

Is There any Function For changing a file extension in .NET?
Or i have to rename a file?
thanks

For Example I want to rename each file in a directory with “.resxx” extension to .resx. what is the problem with my code?

Dim [option] As SearchOption = SearchOption.AllDirectories
[option] = SearchOption.AllDirectories

    Dim fileNames As String() = Directory.GetFiles("C:\New Folder", "*.resxx", [option])
    For Each f In fileNames
        Dim t As New FileInfo(f.ToString)
        MsgBox(Mid(f, 1, f.Length - 4))
        t.MoveTo(Mid(f, 1, f.Length - 4) + ".resx")
    Next

Answer 1

Yes there is: Path.ChangeExtension

In fact the Path class in general has a whole range of useful file/directory name manipulation methods. It’s surprising how many developers don’t know about it/use it.