Listbox - load directory file names

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Hi All,

I am having a little issue and on achieving a certain function in my project.

I currently have a form with a ListBox and a RichTextBox. I was wondering how I could make the ListBoxs list a certain folder directory on my computer that contains RTF files and then to load them into the RichTextBox.

Any ideas.

I know I can uses the RTF.LoadFile() but how do I make the ListBox file the filename/path.

Posted 6-Feb-11 6:31am

SIFNOk

Updated 6-Feb-11 9:12am

Henry Minute

v2

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2 solutions

Solution 2

Thanks to SA who got me on the right path with the system.IO.getfiles.

For those who need the following code it loads a specified directory contents based on file pattern into a listbox.

<br />
Private Sub btnList_Click(ByVal sender As System.Object, _<br />
    ByVal e As System.EventArgs) Handles btnList.Click<br />
    ' Get the pattern without stuff in parens.<br />
    Dim pattern As String = cboPattern.Text<br />
    If pattern.IndexOf("(") >= 0 Then<br />
        pattern = pattern.Substring(0, pattern.IndexOf("("))<br />
    End If<br />
<br />
    ' Get the files.<br />
    lstFiles.Items.Clear()<br />
    Dim dir_info As New DirectoryInfo(txtDir.Text)<br />
    Dim file_infos() As FileInfo<br />
    file_infos = dir_info.GetFiles(pattern)<br />
    For Each file_info As FileInfo In file_infos<br />
        lstFiles.Items.Add(file_info.Name)<br />
    Next file_info<br />
End Sub

References:
Directory.Get.Files search pattern problem[^]

http://www.vb-helper.com/howto_net_list_directory.html[^]

Posted 6-Feb-11 7:46am

SIFNOk

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-02-06T06:56:00

Solution 1

Use System.IO.Directory.GetFiles.

You need to be extra careful, see the discussion here: Directory.Get.Files search pattern problem[^].

The ultimately correct answer was given my Abhishek Sur; see also my answers and discussion. In your case it should be:

var files =
   System.IO.Directory.GetFiles(
      directory,
      "*.rtf").Where(
         item =>
         item.Where(item => item.ToLower().EndsWith(".rtf"));

If you simply use GetFiles without Where, it might also return all the files with names like *.rtfa, *.rtfab, that is, *.rtf?, *.rtf??, and so on.

—SA

Posted 6-Feb-11 6:56am

Sergey Alexandrovich Kryukov

Updated 6-Feb-11 7:38am

v5

Comments

Sandeep Mewara 6-Feb-11 13:14pm

Simple and direct! 5.

Sergey Alexandrovich Kryukov 6-Feb-11 13:27pm

Thank you.
Fixed, made case-insensitive.
--SA

Sandeep Mewara 6-Feb-11 13:29pm

Now, 5++ :)

SIFNOk 6-Feb-11 13:31pm

how would this be implemented in vb.net, unfortantly i only understand vb.net.
Im sorry, i should have stated what i was using at the start.

is there a simplier way like read the contents of another textfile with the path locations.

Sergey Alexandrovich Kryukov 6-Feb-11 13:37pm

Sorry, you'll have to translate, should be easy.
I don't have any VB/VB.NET and nothing can make me to install it. :-)
--SA

SIFNOk 6-Feb-11 13:34pm

But thank you SA for your inputt! =) it seems this is very usesfull information. but unfortantly my skills are not the best.

Sergey Alexandrovich Kryukov 6-Feb-11 13:45pm

I think you have the attitude, so the skills will grow.

Learning a bit of C# won't hurt as well. Remember, many professionals don't take VB seriously (no matter how good it might grow, this is just a social and cultural factor), and Microsoft takes it less and less seriously (after big boost with .NET) -- all the features go to C# first. Also, all C# versions go to ECMA and later to ISO standards while VB was never considered for any standard and hardly will be...

Good luck,
--SA

P.S.:
Anyway, will you formally accept my answer? It should be enough for your purpose.

Sergey Alexandrovich Kryukov 6-Feb-11 13:50pm

Thank you.
Good luck,
--SA

Espen Harlinn 6-Feb-11 14:28pm

My 5, more fun with linq :)

Sergey Alexandrovich Kryukov 6-Feb-11 14:35pm

Well, thank you but credit goes to Abhishek.
--SA

Espen Harlinn 6-Feb-11 15:24pm

Maybe, but you're the one who answered this question :)

Sergey Alexandrovich Kryukov 6-Feb-11 14:38pm

I also added case improvement answer to that question. as a new answer:
http://www.codeproject.com/Answers/152297/Directory-Get-Files-search-pattern-problem.aspx
--SA

Nish Nishant 6-Feb-11 21:29pm

Excellent, voted 5.