[RESOLVED] problem with music playlist

Here is the relevant code.

Code:

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    Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLAdd.Click
        OpenFileDialog2.ShowDialog()
        Playlist.Items.Add(OpenFileDialog2.FileName)
    End Sub

    Private Sub Remove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLRemove.Click
        Playlist.Items.Remove(Playlist.SelectedItem)
    End Sub

    Private Sub PLSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLSave.Click
        IO.Directory.CreateDirectory("C:\Selector\Playlists")
        Dim w As New IO.StreamWriter("C:\Selector\Playlists\test.txt")
        Dim i As Integer
        For i = 0 To Playlist.Items.Count - 1
            w.WriteLine(Playlist.Items.Item(i))
        Next
        w.Close()
    End Sub

    Private Sub PLLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLLoad.Click
        Dim r As New IO.StreamReader("C:\Selector\Playlists\test.txt")
        While (r.Peek() > -1)
            Playlist.Items.Add(r.ReadLine)
        End While
        r.Close()
    End Sub

    Private Sub PLPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLPlay.Click
        Process.Start(Playlist.SelectedItem)
    End Sub

---

I want to allow the user to name their own file for the playlist instead of it being "test.txt".

I want a way to avoid duplicate song files.

I want a way to shorten the file name to exclude the file path. (I'll probably have that figured out on my own)

I want to overwrite one playlist with a loaded one.

Finally, How can I make this symbol, ►, in vb.net? (for my play button)

You could put an IF STATEMENT inside here, to pop up a message box for each song. Better idea would be to let user save a DIFFERENT name, and keep the filename separate for future use.

Look at SaveFileDialog. The user can also create directories if needed.

OpenFileDialog.SafeFileName is the file name without the path. I would do what dglienna said and save both.

Dupes? that's up to you. Probably check after the user selects a new file.

Check out SaveFileDialog.OverwritePrompt

Do I have to import anything to use overwriteprompt?

My code has changed so that there is no longer a file saved to the computer.

Code:

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Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLAdd.Click
        OpenFileDialog2.ShowDialog()
        Playlist.Items.Add(OpenFileDialog2.FileName)
    End Sub

    Private Sub Remove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLRemove.Click
        Playlist.Items.Remove(Playlist.SelectedItem)
    End Sub

    Private Sub PLSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLSave.Click
        Playlists.Items.Add(Playlist.Items)
    End Sub

    Private Sub PLLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLLoad.Click
        Playlist.Items.Add(Playlists.Items)
    End Sub

    Private Sub PLPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLPlay.Click
        If OpenFileDialog2.FileName = "" Then
            Exit Sub
        Else
            Process.Start(Playlist.SelectedItem)
        End If
    End Sub

---

When I use this code to save a playlist to the second listbox as a single item that can be loaded as the original multiple items to the first listbox, all I get in the second listbox is the word, "(Collection)". Also, from this approach how could I allow the user to name their own playlist?

How is the user going to "save" their playlist if you don't write it to a file? If there not saving it to a file why would they have to name it? If you use SaveFileDialog it will allow the user to name the file. You will probably want to dictate the extension (like ".PL")

how do I dictate an extension?

nvmd that last one

They have to name it if they want multiple playlists and be able to identify the contents of each one by it's name.

the main problem is transferring multiple items from one listbox to the other as only one item under a user-designated title like, "Avenged Sevenfold Songs"

ok nvmd I solved all of that and I will post the code after someone tells me how to put this character onto a button, "►"

Found this by searching:

Code:

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 If isPlay = True Then
        If isPaused = False Then
            btnPlay.Image = Image.FromFile("iconPause.png")
            isPaused = True
            isPlay = False
        End If
        GoTo Endline
    End If

    If isPlay = False Then
        If isPaused = True Then

            btnPlay.Image = Image.FromFile("iconPlay.png")
            isPaused = False
            isPlay = True
        End If
    End If

---

http://stackoverflow.com/questions/1...d-pause-button

is there anyway to get it without and icon and only text?

Set the text to ""

ok here is what I did

Code:

---

Private Sub PLMusicSN_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMusicSN.SelectedIndexChanged
        PLMusicFP.SelectedIndex = PLMusicSN.SelectedIndex
    End Sub

    Private Sub PLMAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMAdd.Click
        OpenFileDialog2.ShowDialog()
        PLMusicFP.Items.Add(OpenFileDialog2.FileName)
        PLMusicSN.Items.Add(OpenFileDialog2.SafeFileName)
    End Sub

    Private Sub PLMRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMRemove.Click
        PLMusicFP.Items.Remove(PLMusicFP.SelectedItem)
        PLMusicSN.Items.Remove(PLMusicSN.SelectedItem)
    End Sub

    Private Sub PLMSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMSave.Click
        IO.Directory.CreateDirectory("C:\Selector\Playlists")
        Dim wFP As New IO.StreamWriter("C:\Selector\Playlists\MusicFP.pl")
        Dim i As Integer
        For i = 0 To PLMusicFP.Items.Count - 1
            wFP.WriteLine(PLMusicFP.Items.Item(i))
        Next

        Dim wSN As New IO.StreamWriter("C:\Selector\Playlists\MusicSN.pl")
        For i = 0 To PLMusicSN.Items.Count - 1
            wSN.WriteLine(PLMusicSN.Items.Item(i))
        Next
        wFP.Close()
        wSN.Close()
        My.Settings.PLMDir = Me.PLMDirL.Text
        My.Settings.Save()
    End Sub

    Private Sub PLMPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMPlay.Click
        PLMusicSN.SelectedItem = PLMusicFP.SelectedItem
        If OpenFileDialog2.FileName = "" Then
            Exit Sub
        Else
            Process.Start(PLMusicFP.SelectedItem)
        End If
    End Sub

    Private Sub PLVideoSN_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLMusicSN.SelectedIndexChanged
        PLVideoFP.SelectedIndex = PLVideoSN.SelectedIndex
    End Sub

    Private Sub PLVAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLVAdd.Click
        OpenFileDialog2.ShowDialog()
        PLVideoFP.Items.Add(OpenFileDialog2.FileName)
        PLVideoSN.Items.Add(OpenFileDialog2.SafeFileName)
    End Sub

    Private Sub PLVRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLVRemove.Click
        PLVideoFP.Items.Remove(PLVideoFP.SelectedItem)
        PLVideoSN.Items.Remove(PLVideoSN.SelectedItem)
    End Sub

    Private Sub PLVSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLVSave.Click
        IO.Directory.CreateDirectory("C:\Selector\Playlists")
        Dim wFP As New IO.StreamWriter("C:\Selector\Playlists\VideoFP.pl")
        Dim i As Integer
        For i = 0 To PLVideoFP.Items.Count - 1
            wFP.WriteLine(PLVideoFP.Items.Item(i))
        Next

        Dim wSN As New IO.StreamWriter("C:\Selector\Playlists\VideoSN.pl")
        For i = 0 To PLVideoSN.Items.Count - 1
            wSN.WriteLine(PLVideoSN.Items.Item(i))
        Next
        wFP.Close()
        wSN.Close()
        My.Settings.PLVDir = Me.PLVDirL.Text
        My.Settings.Save()
    End Sub

    Private Sub PLVPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PLVPlay.Click
        PLVideoSN.SelectedItem = PLVideoFP.SelectedItem
        If OpenFileDialog2.FileName = "" Then
            Exit Sub
        Else
            Process.Start(PLVideoFP.SelectedItem)
        End If
    End Sub

---

and in forms load

Code:

---

Me.PLMDirL.Text = My.Settings.PLMDir
        Me.PLVDirL.Text = My.Settings.PLVDir

        If PLMDirL.Text = "0" Then
            IO.Directory.CreateDirectory("C:\Selector\Playlists\")
            System.IO.File.Create("c:\Selector\Playlists\MusicFP.pl")
            System.IO.File.Create("c:\Selector\Playlists\MusicSN.pl")
            PLMDirL.Text = 1
        Else
            Dim rMFP As New IO.StreamReader("C:\Selector\Playlists\MusicFP.pl")
            While (rMFP.Peek() > -1)
                PLMusicFP.Items.Add(rMFP.ReadLine)
            End While
            rMFP.Close()
            Dim rMSN As New IO.StreamReader("C:\Selector\Playlists\MusicSN.pl")
            While (rMSN.Peek() > -1)
                PLMusicSN.Items.Add(rMSN.ReadLine)
            End While
            rMSN.Close()

            Dim rVFP As New IO.StreamReader("C:\Selector\Playlists\VideoFP.pl")
            While (rVFP.Peek() > -1)
                PLVideoFP.Items.Add(rVFP.ReadLine)
            End While
            rVFP.Close()
            Dim rVSN As New IO.StreamReader("C:\Selector\Playlists\VideoSN.pl")
            While (rVSN.Peek() > -1)
                PLVideoSN.Items.Add(rVSN.ReadLine)
            End While
            rVSN.Close()
        End If

        If PLVDirL.Text = "0" Then
            IO.Directory.CreateDirectory("C:\Selector\Playlists\")
            System.IO.File.Create("c:\Selector\Playlists\VideoFP.pl")
            System.IO.File.Create("c:\Selector\Playlists\VideoSN.pl")
            PLVDirL.Text = 1
        Else
            Dim rVFP As New IO.StreamReader("C:\Selector\Playlists\VideoFP.pl")
            While (rVFP.Peek() > -1)
                PLVideoFP.Items.Add(rVFP.ReadLine)
            End While
            rVFP.Close()
            Dim rVSN As New IO.StreamReader("C:\Selector\Playlists\VideoSN.pl")
            While (rVSN.Peek() > -1)
                PLVideoSN.Items.Add(rVSN.ReadLine)
            End While
            rVSN.Close()
        End If

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Should have used SELECT CASE for peek, to save 90% of the code

I just saw your reply. what do you mean by select case?

Code:

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Select Case rMFP.Peek()
  Case -1
    '  Do something
  Case Else
  '  do something else
End Select

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ok thanks