Solved

Populate list box with multiple file types

Posted on 2008-10-03
5
244 Views
Last Modified: 2013-11-27
I want to populate a list box from a directory with multiple particular file types, jpg or bmp or dwf only. can anyone suggest some code for vb express 2008.

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        TextBox1.Text = "c:\test\"
        Dim files() As String = IO.Directory.GetFiles(TextBox1.Text)
        ListBox1.Items.Clear()
        For Each file As String In files
            ListBox1.Items.Add(IO.Path.GetFileName(file))
        Next
    End Sub

Open in new window

0
Comment
Question by:cheshirefire
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 19

Expert Comment

by:alb66
ID: 22649113
You can use the second parameter to specify the file type:

Dim files() As String = IO.Directory.GetFiles(TextBox1.Text, "*.jpg")

See
http://msdn.microsoft.com/en-us/library/ms143316.aspx
0
 

Author Comment

by:cheshirefire
ID: 22649589
My apologies what I meant was *.jpg AND *.bmp AND *.dwf exclusively.

The directory has several other file types that another program uses i.e. htm's, txt's  so all I want are the above file types.

thanks
0
 
LVL 19

Accepted Solution

by:
alb66 earned 150 total points
ID: 22649799
It should be:
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        ListBox1.Items.Clear()
        TextBox1.Text = "c:\test\"
 
        Dim files1() As String = IO.Directory.GetFiles(TextBox1.Text, "*.jpg")
        For Each file As String In files1
            ListBox1.Items.Add(IO.Path.GetFileName(file))
        Next
 
        Dim files2() As String = IO.Directory.GetFiles(TextBox1.Text, "*.bmp")
        For Each file As String In files2
            ListBox1.Items.Add(IO.Path.GetFileName(file))
        Next
 
        Dim files3() As String = IO.Directory.GetFiles(TextBox1.Text, "*.dwf")
        For Each file As String In files3
            ListBox1.Items.Add(IO.Path.GetFileName(file))
        Next
    End Sub

Open in new window

0
 
LVL 96

Assisted Solution

by:Bob Learned
Bob Learned earned 150 total points
ID: 22649912
How about a little optimization:

Example:

Dim fileList As List(Of String) = FileSystemObject.GetFilteredFileList("C:\Windows\Web\Wallpaper", "jpg", "bmp")
Imports System.Collections.Generic
Imports System.IO
 
Public Class FileSystemObject
 
    ''' <summary>
    ''' Get a filtered list of files, based on the file extensions passed.
    ''' </summary>
    ''' <param name="filePath">The full path directory name</param>
    ''' <param name="extensionList">A list of extensions (i.e. jpg, gif, bmp, png)</param>
    ''' <returns>A list of </returns>
    ''' <remarks></remarks>
    Public Shared Function GetFilteredFileList(ByVal filePath As String, ByVal ParamArray extensionList As String()) As List(Of String)
 
        Dim fileList As New List(Of String)
 
        For Each extension As String In extensionList
            fileList.AddRange(Directory.GetFiles(filePath, "*." & extension))
        Next extension
        Return fileList
 
    End Function
 
End Class

Open in new window

0
 

Author Closing Comment

by:cheshirefire
ID: 31502691
Many thanks to you all, problem solved
0

Featured Post

[Webinar] Learn How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

zlib is a free compression library (a DLL) on which the popular gzip utility is built.  In this article, we'll see how to use the zlib functions to compress and decompress data in memory; that is, without needing to use a temporary file.  We'll be c…
What my article will show is if you ever had to do processing to a listbox without being able to just select all the items in it. My software Visual Studio 2008 crystal report v11 My issue was I wanted to add crystal report to a form and show…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question