1. Openfiledialog Filter Multiple Extensions

It demonstrates initializing an OpenFileDialog, setting the Title and Filter properties, and allowing the user to select multiple files by setting the Multiselect property to true. This code example assumes that your form already has an OpenFileDialog control named openFileDialog1, a Button named SelectFileButton, and a FlowLayoutPanel named flowLayoutPanel1.

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• Private Sub Button1Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click OpenFileDialog1.Multiselect = True OpenFileDialog1.ShowDialog For Each FileName As String In OpenFileDialog1.FileNames MsgBox(FileName) Next 'example for renameing selected files For Each FileName As String In OpenFileDialog1.FileNames 'FileName is a String and looks like c:/user/pics/one.jpg 'Create the new FileName you want, i replace the directory Dim NewFileName As String = FileName.Replace.

You'll have trouble getting this right. First off, the sort order of the files in the dialog is determined by the dialog itself. In Win7, that's set with the 'Sort by' context menu item.

You cannot find out what the active sort order was for the dialog in your own program with a documented property or API. Secondly, the files are sorted using a dedicated sorting algorithm that emphasizes a 'natural' sort order. Which makes 10.txt sort.after. 2.txt. You will have to use P/Invoke to be able to use the comparison function that produces this order (StrCmpLogicalW from shlwapi.dll).

Openfiledialog Filter Multiple Extensions

Given that you can't get the order in your list box the same as the order in the dialog, which you can't find out, I'd recommend you just pick your own sorting order.Hans Passant.