Open File Dialog

[Glen Conaway]

When I write a program and use an Open File Dialog Box, and run the program, I cannot access files on my CD-ROM (d drive.
How can I solve this problem?

"Many Thanks",
Glen Conaway

[Edneeis]

What prevents you from accessing the files on your CDROM drive? Works fine for me. Do you get an error? What happens? Do you have a disc in? (Might sound stupid but I gotta ask)

[Glen Conaway]

I think it's a permission problem. I was messing around with it and I got this message:
"You do not have permission to open this file.
See the owner of the file or administrator to obtain permission."

I don't understand because I am logged in as administrator in Windows XP Proffessional.

A CD is in the drive, if no CD is in the drive I get a message to insert a disk into the drive.

When I insert a disk no files show up. In the files of type I have
WAV files (*.wav)

The Open File Dialog works anywhere on my hard drive but not on my CD ROM

Comercial programs such as Music Match, Nero, ect. have no problem accessing my CD ROM

"Many Thanks"

[Edneeis]

Post your code. It worked fine for me so it might be something to do with the filter you are using. So is the problem opening the file? Or it not showing wave files?

[Glen Conaway]

It turns out I was assuming that a cd had .wav files. A simple change to the browse button to accept all files solved the problem, but now I have to figure out how to play a .cda file.

"Thanks"
Glen Conaway

[Edneeis]

If you just want the default application on the client computer to play them (assuming there is one) then you can use Process.Start("MyFile.cda")

[Glen Conaway]

I am having problems playing the file from my CD ROM.
I put the file in a textbox.
I am trying to get the file to play when I click a button called btnTest.

Here is my code:

Imports System.IO
Public Class Form1
Inherits System.Windows.Forms.Form

'api to play wav files
Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA" _
(ByVal lpszName As String, ByVal dwFlags As Long) As Long
Const SND_ASYNC = &H1


' Declare variable...
Private strFileName As String = "C:\Temp\Text Docment.txt"


Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

Private Sub btuBrowse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btuBrowse.Click
Dim soundFile As String
' Ste the Open dialog porperties...
With ofdBrowse
.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
.FilterIndex = 1
.InitialDirectory = "C:\Temp\"
.Title = "Demo Open File Dialog"
End With

' Show the Open dialog and if the user clicks the OC button,
' load the file...
If ofdBrowse.ShowDialog() = DialogResult.OK Then
txtSoundFile.Text = ofdBrowse.FileName

End If
End Sub

Private Sub btnTest_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTest.Click
Dim soundFile As String = txtSoundFile.Text
' simply play the file in the textbox

'The following line works with wav files on the hard drive
'sndPlaySound(soundFile, SND_ASYNC)

'This line doesn't work, I've got something wrong with my code
Process.Start("soundFile.cda")



End Sub
Friend WithEvents btnTest As System.Windows.Forms.Button

Private Sub txtFile_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

End Sub
Friend WithEvents txtSoundFile As System.Windows.Forms.TextBox

Private Sub txtSoundFile_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSoundFile.TextChanged

End Sub
Friend WithEvents ofdBrowse As System.Windows.Forms.OpenFileDialog
Friend WithEvents btuBrowse As System.Windows.Forms.Button

Private Sub ofdBrowse_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles ofdBrowse.FileOk

End Sub
End Class


Thanks for your patience, I am a newbe with alot to learn,
Glen Conaway

[Edneeis]

Process.Start needs the whole path so it should be something like:
Process.Start("D:\soundFile.cda")

Now when you say it doesn't work what does that mean? Do you get an error? Nothing happens? If its an error then which one?

I've never actually tried this with a cda file but in theory it should work as long as there is an application associated with the cda extension.

EDIT: Actually I just tested it and it worked fine for me using:
Process.Start("D:\Track01.cda")

This fired off Winamp (my associated application) and started to play the file.

[Glen Conaway]

Thanks allot for your help.
I didnt have the drive letter in my textbox.

I realized this when I ran your line of code and it worked.

I fixed the problem by changing the RestoreDirectory property on the open file dialog to true.

Life is good!

"Many thanks"
Glen Conaway