FileListBox not updating

[bjwade62]

I'm using System.IO.File.Copy to copy a file to a folder. I have a FileListBox on my form that contains the files in that folder. The problem I'm having is that the FileListBox doesn't show the newly added file unless I change folders and then come back it.
I've tried FileListBox.Refresh and FileListBox.Update with no luck.
Any help out there?
Thanks,
Bernie

 

[kulrom]

First remove all the items from FileListBox:

FileListBox.Items.Clear()

and then repopulate it including the newly added file(s).

Regards

 

[JohnH]

Here's some simple code to populate the files to Listbox, you can call this code each time you want it to 'refresh' the list of files.

Dim folderpath As New IO.DirectoryInfo("C:\")
ListBox1.DataSource = folderpath.GetFiles("*.txt")
ListBox1.ValueMember = "Name"

Given circumstances you could also use a FileSystemWatcher to monitor this folder and automatically 'refresh' Listbox with this code when files in that folder changes.

 

[kulrom]

In addition to JohnH reply; be careful when you follow this way. If you are using SelectedIndexChanged or Value changed etc. later in your code ... you should consider the add and remove handler methods too.

Regards

 

[cjard]

I'm not sure why? JohnH made no mention that the refresh code should be done inside of a SelectedIndexChanged event though you are correct in pointing out (implicitly) that such a move would not be wise...