Code review: Determining whether a folder exists, given the full file path?
With a function being passed a full path to a file, such as C:\someFolder\anotherFolder\someXML.xml
, determine whether the folder exists. Is there a smarter/better/more elegant way of doing this? Here is my implementation:
Private Function FolderExists(ByVal fullPath As String) As Boolean
Dim folders() As String =开发者_开发问答 fullPath.Split("\")
Dim folderPath As String = ""
For i As Integer = 0 To folders.Length - 2 'subtract 2 to avoid appending the filename.
folderPath += folders(i) + "\"
Next
Dim f As New DirectoryInfo(folderPath)
Return f.Exists
End Function
just use File.Exists instead, it accepts a full path.
EDIT: Sorry, calling your directory variable f
confused me.... I trust you can translate the following C# code:-
return Directory.Exists( Path.GetDirectoryName( fullPath ) );
The .NET BCL ARM has decent coverage of this stuff, though I'm sure there's a better reference out there. The System.IO.Path
and Environment
docs would probably be just fine.
You can use [File.Exists
](http://msdn.microsoft.com/en-us/library/system.io.file.exists(VS.71).aspx))
Private Function FolderExists(ByVal fullPath As String) As Boolean
return (File.exists(fullPath)
And (File.GetAttributes(fullPath) And FileAttributes.Directory))
End Function
精彩评论