OpenFileDialog keep showing .lnk files WPF

2
votes

Is it possible to force OpenFileDialog not to show shortcuts?

I only want to get pdf, so I'm using the filter like this

var dialog = new OpenFileDialog
{
   Multiselect = false,
   Filter = "Pdf Files|*.pdf"
};

But when the dialog is shown, it shows files with pdf extension and lnk extension

example image

Is it possible to prevent it?

4
c#wpffilteropenfiledialog
Not out of the box, no. Have a look at this post - you'll have to write a custom OpenFileDialog. The reason is, as mentioned in the post too, that a user could use a .lnk to navigate to another folder. - nilsK
@nilsK ty, can you post that as answer? so i mark it correct? - Juan Salvador Portugal

4 Answers

2
votes

The answer is from the MSDN forums

Out of the box the OpenFileDialog is not able to do that. A reason might be, that .lnk files could be used by a user, to navigate to a different folder, where he/she expects the file, that needs to be opened.

In the above posted link the user 'Ryan' posted a snippet, to exclude selected .lnk files in the FileOK event.

Again, not my code! But since some websites move their content and a link might not work any longer, here 'Ryan's' code snippet (written in VB):

Public Class Home

    Private WithEvents _fileDialog As New OpenFileDialog

    Private Sub BrowseButton1_Click(sender As Object, e As EventArgs) Handles BrowseButton1.Click
        With Me._fileDialog
            .DereferenceLinks = True    ' this allows the FileName property to have the Target of a shortcut link, instead of the shortcut link file name
            .Multiselect = False
            .Filter = "CSV (Comma delimited) (*.csv)|*.csv"
            .ShowDialog()
        End With
    End Sub

    Private Sub _fileDialog_FileOk(sender As Object, e As System.ComponentModel.CancelEventArgs) Handles _fileDialog.FileOk
        If Not Me._fileDialog.FileName Like "*.csv" Then
            ' cancel any shortcut files here
            e.Cancel = True
            MsgBox("You must select a CSV (Comma delimited) file.", MsgBoxStyle.Exclamation)
        Else
            Me.TextBox1.Text = Me._fileDialog.FileName
        End If
    End Sub

End Class
1
votes

Is the reason you don't want to show .lnk files is because you want the path to the actual PDF file? If so, you should be able to set the DereferenceLinks property to true. If the user selects a .lnk file, the dialog will return the path to the file the .lnk file points to rather than the .lnk file itself.

0
votes

You can't make a Open file dialog to hide specific files. The only thing you can do is Use the Filter tag to filter specified file extension for saving purpose but not hiding.

-1
votes

I.E. on save dialog I use it like this for excel files.

SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.Filter = "Excel files (*.xlsx)|*.xlsx";
saveFileDialog1.FilterIndex = 2;
saveFileDialog1.RestoreDirectory = true;

So, with open file dialog should be the same.