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Thread: How to check whether a filie is existing

  1. #1
    Join Date
    Jul 2003
    Posts
    69

    How to check whether a filie is existing

    Well I am tying to open a file for reading which does not exist and thus getting an erro message. How to check whether a file is existing before I open it for reading?

    I am using VB.NET and doing windows application

  2. #2
    Join Date
    Nov 2002
    Location
    Auburn, AL
    Posts
    9,222
    Well what I would probably do is create a data set with all the files in the directory in it, then check the file name string with the data set. There is probably a more efficient way, but this could make it easier for you if you want to use other information about the file or several files. I can probably post code on how to populate a data set with file info or read from a directory.

  3. #3
    Join Date
    Nov 2004
    Location
    Utah
    Posts
    23
    You should use the System.IO.File class. It has a shared method called Exists.

    Code:
    Imports System.IO
    
    ' then in the function
    
    If File.Exists(filepath) Then
      'open it
    Else
      'dont open it.
    End If
    HTH.

    Ben Miller
    All responses are provided AS IS and do not necessarily reflect my employers views.

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