Click here to Skip to main content
15,843,865 members
Home / Discussions / Visual Basic
   

Visual Basic

 
GeneralRe: listbox mass edit Pin
Richard MacCutchan12-Jun-23 3:05
mveRichard MacCutchan12-Jun-23 3:05 
GeneralRe: listbox mass edit Pin
Dave Kreskowiak11-Jun-23 5:52
mveDave Kreskowiak11-Jun-23 5:52 
GeneralRe: listbox mass edit Pin
Member Alienoiz11-Jun-23 6:02
Member Alienoiz11-Jun-23 6:02 
GeneralRe: listbox mass edit Pin
Member Alienoiz10-Jun-23 10:53
Member Alienoiz10-Jun-23 10:53 
GeneralRe: listbox mass edit Pin
Ralf Meier10-Jun-23 11:52
professionalRalf Meier10-Jun-23 11:52 
GeneralRe: listbox mass edit Pin
Richard MacCutchan10-Jun-23 22:23
mveRichard MacCutchan10-Jun-23 22:23 
AnswerRe: listbox mass edit Pin
Richard MacCutchan10-Jun-23 22:11
mveRichard MacCutchan10-Jun-23 22:11 
AnswerRe: listbox mass edit Pin
Andre Oosthuizen13-Jun-23 0:59
mveAndre Oosthuizen13-Jun-23 0:59 
I am probably jumping into a rabbit hole here...
@Member Alienoiz, as per most posters above, you need to understand the code and it's operations that you got from another source. I agree that you do not have to re-invent the wheel but you need to understand why the wheel were invented and why/what it's function is before you can implement it into a real world scenario - you will not attach a wheel to a kettle but you might attach it to a car.

That being said, the following is some good practices to follow, which you probably would have done if you understood the code completely. I have used your class post from above, an answer to your 'listbox only updating item 1' will follow after -

Here are a few few suggestions for improving your code's efficiency and readability so anybody can understand it.
1. Make use of conventional naming practice's i.e 'Button1' can be named 'btn_Load_folder' which will point anyone else reading your code to your LoadFolder function. No-one will know what Button1, Label7, Text9 etc. do without going to the actual control to try and figure out what it's function is.
2. Remove unused imports such as System.Net.Security, System.Net.WebRequestMethods, System.Runtime, and System.Security.Cryptography. Including these unnecessary imports can clutter the code and affect your app's performance.
3. It's good practice to use explicit access modifiers i.e, Private, Public for your methods and variables. Not using an access modifier will always default to Private, it is however better to be explicit to improve your code readability.
4. You are repeating certain code over and over. In your Button1_Click and Button2_Click event handlers, you have duplicate code for retrieving the file names and populating the ListBox1 control. You should consider extracting this code into a separate method and calling it from both event handlers to avoid redundancy.
5. Combine event handlers into one event. Your event handlers for Button4_Click, Button6_Click, Button8_Click, and Button12_Click have similar code. You can combine them into a single event handler and determine the action or the expected behavior's based on the sender's ID etc.
6. Use 'Try...Catch' blocks instead of 'On Error Resume Next' to handle exceptions. By resuming next you just ignore the error and hope for the best, which is probably why you kept on stating that your code "works fine" whil;st it actually does not, you just skipped the errors. Using the 'Try...Catch' blocks allows you to handle specific exceptions and provide appropriate error messages or take necessary actions so your app does not crash somewhere along the line.
7. In some places, you read, write, move, or delete files within a loop or repeatedly. Consider combining these operations by making less calls to file system operations or you can use bulk operations where possible.
8. You have multiple places where you update the labels' text in your code. Rather combine this functionality into a separate method to avoid code duplication and improve maintainability with less stress on your app.

Below is the code for your class and it's methods. I suggest that you work through each line, let Google be your friend here and research each item that you do not understand. I do not claim this to be the best code, there might be better practice's but I am confident this will point you in the right direction to start learning why a wheel goes on a car and not a kettle -

Imports System.IO
Imports HundredMilesSoftware.UltraID3Lib

Public Class Form1
    Dim myMp3 As New UltraID3()

    ' Event handler for loading files from a folder
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click, Button2.Click
        Dim isLoadFolder As Boolean = (sender Is Button1)
        Dim selectedPath As String = FolderBrowserDialog1.SelectedPath

        If isLoadFolder Then
            ' Show the folder browser dialog to select a folder
            If FolderBrowserDialog1.ShowDialog() = DialogResult.OK Then
                selectedPath = FolderBrowserDialog1.SelectedPath
            Else
                Return
            End If
        End If

        ListBox1.Items.Clear()
        ' Get all the .mp3 files in the selected folder
        Dim fileNames = Directory.GetFiles(selectedPath, "*.mp3", SearchOption.TopDirectoryOnly)

        ' Add the file names to the list box
        For Each fileName As String In fileNames
            Dim result As String = Path.GetFileName(fileName)
            ListBox1.Items.Add(result)
        Next

        ' Reset the label values
        ResetLabelValues()
    End Sub

    ' Event handler for selecting a file in the list box
    Private Sub ListBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListBox1.SelectedIndexChanged
        If ListBox1.SelectedItem Is Nothing Then Return

        ' Read the selected MP3 file using UltraID3
        myMp3.Read(Path.Combine(FolderBrowserDialog1.SelectedPath, ListBox1.SelectedItem.ToString()))

        ' Update the labels with the ID3 tag information
        Label1.Text = "Title: " & myMp3.ID3v2Tag.Title
        Label2.Text = "Artist: " & myMp3.ID3v2Tag.Artist
        Label3.Text = "Album: " & myMp3.ID3v2Tag.Album
        Label4.Text = "Year: " & myMp3.ID3v2Tag.Year.ToString()
        Label5.Text = "Track: " & myMp3.ID3v2Tag.TrackNum.ToString()
        Label6.Text = "Comment: " & myMp3.ID3v2Tag.Comments
        Label7.Text = "Genre: " & myMp3.ID3v2Tag.Genre

        ' Update the picture box with the album art if available
        Dim pics = myMp3.ID3v2Tag.Frames.GetFrames(CommonMultipleInstanceID3v2FrameTypes.Picture)
        If pics.Length > 0 Then
            PictureBox1.Image = CType(pics(0), ID3v2PictureFrame).Picture
        End If
    End Sub

    ' Event handler for saving the edited tags to the MP3 file
    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        If ListBox1.SelectedItem Is Nothing Then
            MessageBox.Show(Me, "No File Selected!", "Select Files", MessageBoxButtons.OK)
            Return
        End If

        ' Check if any of the tag checkboxes are checked
        Dim anyCheckBoxChecked = CheckBox1.Checked OrElse CheckBox2.Checked OrElse CheckBox3.Checked OrElse
                                 (CheckBox4.Checked AndAlso Not String.IsNullOrEmpty(TextBox4.Text)) OrElse
                                 (CheckBox5.Checked AndAlso Not String.IsNullOrEmpty(TextBox5.Text)) OrElse
                                 CheckBox6.Checked OrElse CheckBox7.Checked

        If Not anyCheckBoxChecked Then
            MessageBox.Show(Me, "Select a tag to enter!", "Select Tags", MessageBoxButtons.OK)
            Return
        End If

        ' Update the ID3 tags based on the checkbox values
        If CheckBox1.Checked Then
            myMp3.ID3v2Tag.Title = TextBox1.Text
        End If

        If CheckBox2.Checked Then
            myMp3.ID3v2Tag.Artist = TextBox2.Text
        End If

        If CheckBox3.Checked Then
            myMp3.ID3v2Tag.Album = TextBox3.Text
        End If

        If CheckBox4.Checked AndAlso Not String.IsNullOrEmpty(TextBox4.Text) Then
            Short.TryParse(TextBox4.Text, myMp3.ID3v2Tag.Year)
        End If

        If CheckBox5.Checked AndAlso Not String.IsNullOrEmpty(TextBox5.Text) Then
            Short.TryParse(TextBox5.Text, myMp3.ID3v2Tag.TrackNum)
        End If

        If CheckBox6.Checked Then
            myMp3.ID3v2Tag.Comments = TextBox6.Text
        End If

        If CheckBox7.Checked Then
            myMp3.ID3v2Tag.Genre = If(ComboBox1.Text = "01 - User", TextBox7.Text, ComboBox1.Text)
        End If

        ' Write the changes to the MP3 file
        myMp3.Write()

        ' Show operation complete message
        MessageBox.Show(Me, "Operation Complete!", "Tagged Files!", MessageBoxButtons.OK)
    End Sub

    ' Event handler for clearing the list box
    Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click, Button8.Click
        ListBox1.Items.Clear()
    End Sub

    ' Event handler for handling key press events in TextBox5 and TextBox4
    ' Only allows digits and backspace to be entered
    Private Sub TextBox5_KeyPress(sender As Object, e As KeyPressEventArgs) Handles TextBox5.KeyPress, TextBox4.KeyPress
        Dim ch As Char = e.KeyChar
        If Not Char.IsDigit(ch) AndAlso Asc(ch) <> 8 Then
            e.Handled = True
        End If
    End Sub

    ' Event handler for renaming the selected file
    Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click
        If ListBox1.SelectedItem Is Nothing Then
            MessageBox.Show(Me, "No File Selected!", "Select Files", MessageBoxButtons.OK)
            Return
        End If

        ' Rename the selected file
        My.Computer.FileSystem.RenameFile(Path.Combine(FolderBrowserDialog1.SelectedPath, ListBox1.SelectedItem.ToString()), TextBox8.Text & ".mp3")

        ' Refresh the list box
        RefreshListBox()
    End Sub

    ' Event handler for moving the selected file to a different folder
    Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click
        If ListBox1.SelectedItem Is Nothing Then
            MessageBox.Show(Me, "No File Selected!", "Select Files", MessageBoxButtons.OK)
            Return
        End If

        Dim selectedFilePath As String = Path.Combine(FolderBrowserDialog1.SelectedPath, ListBox1.SelectedItem.ToString())
        Dim destinationFilePath As String = Path.Combine(TextBox9.Text, ListBox1.SelectedItem.ToString())

        ' Check if the destination file already exists
        If File.Exists(destinationFilePath) Then
            MessageBox.Show(Me, "File Exists!", "Duplicated Files!", MessageBoxButtons.OK)
            Return
        End If

        ' Move the file to the destination folder
        My.Computer.FileSystem.MoveFile(selectedFilePath, destinationFilePath)

        ' Refresh the list box
        RefreshListBox()
    End Sub

    ' Event handler for copying the selected file to a different folder
    Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
        If ListBox1.SelectedItem Is Nothing Then
            MessageBox.Show(Me, "No File Selected!", "Select Files", MessageBoxButtons.OK)
            Return
        End If

        Dim selectedFilePath As String = Path.Combine(FolderBrowserDialog1.SelectedPath, ListBox1.SelectedItem.ToString())
        Dim destinationFilePath As String = Path.Combine(TextBox10.Text, ListBox1.SelectedItem.ToString())

        ' Check if the destination file already exists
        If File.Exists(destinationFilePath) Then
            MessageBox.Show(Me, "File Exists!", "Duplicated Files!", MessageBoxButtons.OK)
            Return
        End If

        ' Copy the file to the destination folder
        My.Computer.FileSystem.CopyFile(selectedFilePath, destinationFilePath, overwrite:=False)

        ' Refresh the list box
        RefreshListBox()
    End Sub

    ' Event handler for selecting the destination folder for move operation
    Private Sub Button9_Click(sender As Object, e As EventArgs) Handles Button9.Click
        If FolderBrowserDialog2.ShowDialog() = DialogResult.OK Then
            TextBox9.Text = FolderBrowserDialog2.SelectedPath
        End If
    End Sub

    ' Event handler for selecting the destination folder for copy operation
    Private Sub Button10_Click(sender As Object, e As EventArgs) Handles Button10.Click
        If FolderBrowserDialog3.ShowDialog() = DialogResult.OK Then
            TextBox10.Text = FolderBrowserDialog3.SelectedPath
        End If
    End Sub

    ' Event handler for selecting a new album art image
    Private Sub Button11_Click(sender As Object, e As EventArgs) Handles Button11.Click
        Dim ofd As New OpenFileDialog()
        If ofd.ShowDialog() = DialogResult.OK Then
            If Not String.IsNullOrEmpty(ofd.FileName) Then
                PictureBox1.Image = Bitmap.FromFile(ofd.FileName)
            End If
        End If
    End Sub

    ' Event handler for deleting selected files
    Private Sub Button12_Click(sender As Object, e As EventArgs) Handles Button12.Click
        For i As Integer = ListBox1.SelectedIndices.Count - 1 To 0 Step -1
            ListBox1.Items.RemoveAt(ListBox1.SelectedIndices(i))
        Next
    End Sub

    ' Event handler for filtering the list box based on the search text
    Private Sub TextBox11_TextChanged(sender As Object, e As EventArgs) Handles TextBox11.TextChanged
        RefreshListBox()
    End Sub

    ' Event handler for toggling between mass edit and single edit mode
    Private Sub Button13_Click(sender As Object, e As EventArgs) Handles Button13.Click
        If Button13.Text = "Mass Edit" Then
            Button13.Text = "Single Edit"
        Else
            Button13.Text = "Mass Edit"
        End If

        ToggleFileActionButtons()
        ToggleSelectionMode()
    End Sub

    ' Helper method to reset the label values
    Private Sub ResetLabelValues()
        Label1.Text = "Title:"
        Label2.Text = "Artist:"
        Label3.Text = "Album:"
        Label4.Text = "Year:"
        Label5.Text = "Track:"
        Label6.Text = "Comment:"
        Label7.Text = "Genre:"
        PictureBox1.Image = Nothing
    End Sub

    ' Helper method to refresh the list box
    Private Sub RefreshListBox()
        Dim selectedPath As String = FolderBrowserDialog1.SelectedPath
        ListBox1.Items.Clear()

        If Not String.IsNullOrEmpty(selectedPath) Then
            Dim fileNames = Directory.GetFiles(selectedPath, "*.mp3", SearchOption.TopDirectoryOnly)

            For Each fileName As String In fileNames
                Dim result As String = Path.GetFileName(fileName)
                ListBox1.Items.Add(result)
            Next
        End If

        ResetLabelValues()
    End Sub

    ' Helper method to toggle the enabled state of file action buttons
    Private Sub ToggleFileActionButtons()
        Button5.Enabled = Not Button5.Enabled
        Button6.Enabled = Not Button6.Enabled
        Button7.Enabled = Not Button7.Enabled
        Button8.Enabled = Not Button8.Enabled
    End Sub

    ' Helper method to toggle the selection mode of the list box
    Private Sub ToggleSelectionMode()
        If ListBox1.SelectionMode = SelectionMode.One Then
            ListBox1.SelectionMode = SelectionMode.MultiExtended
        Else
            ListBox1.SelectionMode = SelectionMode.One
        End If
    End Sub
End Class


Now, to your original problem where only the first item in your listbox is updated. This is because your 'myMp3.Write()' method inside the loop. This causes the changes to be written to the MP3 file immediately after each update. You need to move the 'myMp3.Write()' method outside the loop -

Dim items = ListBox1.SelectedItems
For Each item In items
    If CheckBox1.Checked = True Then
        myMp3.ID3v2Tag.Title = TextBox1.Text
    End If

    If CheckBox2.Checked = True Then
        myMp3.ID3v2Tag.Artist = TextBox2.Text
    End If

    If CheckBox3.Checked = True Then
        myMp3.ID3v2Tag.Album = TextBox3.Text
    End If

    If CheckBox4.Checked = True And TextBox4.Text <> "" Then
        On Error Resume Next
        myMp3.ID3v2Tag.Year = Short.Parse(TextBox4.Text)
        On Error Resume Next
    End If

    If CheckBox5.Checked = True And TextBox5.Text <> "" Then
        myMp3.ID3v2Tag.TrackNum = Short.Parse(TextBox5.Text)
    End If

    If CheckBox6.Checked = True Then
        myMp3.ID3v2Tag.Comments = TextBox6.Text
    End If

    If CheckBox7.Checked = True Then
        If ComboBox1.Text = "01 - User" Then
            myMp3.ID3v2Tag.Genre = TextBox7.Text
        Else
            myMp3.ID3v2Tag.Genre = ComboBox1.Text
        End If
    End If

    ' Write the changes to the MP3 file
    myMp3.Write()
Next


Last but not least, I could not see 1 poster that tried to help you show arrogance or attacking your methods, rather I saw them offering help but you insisted that you are not willing to learn or accept criticism to enable you to become a better developer. Rather sit back, swallow your pride and accept their answers or direction and I promise you taht you will become a top notch coder!
GeneralRe: listbox mass edit Pin
Member Alienoiz13-Jun-23 2:03
Member Alienoiz13-Jun-23 2:03 
GeneralRe: listbox mass edit Pin
Andre Oosthuizen13-Jun-23 3:43
mveAndre Oosthuizen13-Jun-23 3:43 
GeneralRe: listbox mass edit Pin
Member Alienoiz13-Jun-23 23:44
Member Alienoiz13-Jun-23 23:44 
GeneralRe: listbox mass edit Pin
Ralf Meier14-Jun-23 2:37
professionalRalf Meier14-Jun-23 2:37 
GeneralRe: listbox mass edit Pin
Member Alienoiz14-Jun-23 3:23
Member Alienoiz14-Jun-23 3:23 
GeneralRe: listbox mass edit Pin
Ralf Meier14-Jun-23 3:35
professionalRalf Meier14-Jun-23 3:35 
GeneralRe: listbox mass edit Pin
Member Alienoiz14-Jun-23 3:38
Member Alienoiz14-Jun-23 3:38 
GeneralRe: listbox mass edit Pin
Ralf Meier14-Jun-23 7:34
professionalRalf Meier14-Jun-23 7:34 
GeneralRe: listbox mass edit Pin
Andre Oosthuizen14-Jun-23 6:02
mveAndre Oosthuizen14-Jun-23 6:02 
GeneralRe: listbox mass edit Pin
Richard MacCutchan14-Jun-23 6:15
mveRichard MacCutchan14-Jun-23 6:15 
GeneralRe: listbox mass edit Pin
Ralf Meier14-Jun-23 7:31
professionalRalf Meier14-Jun-23 7:31 
GeneralRe: listbox mass edit Pin
Richard MacCutchan14-Jun-23 7:37
mveRichard MacCutchan14-Jun-23 7:37 
GeneralRe: listbox mass edit Pin
Member Alienoiz14-Jun-23 9:18
Member Alienoiz14-Jun-23 9:18 
GeneralRe: listbox mass edit Pin
OriginalGriff14-Jun-23 9:21
mveOriginalGriff14-Jun-23 9:21 
GeneralRe: listbox mass edit Pin
Member Alienoiz14-Jun-23 9:38
Member Alienoiz14-Jun-23 9:38 
GeneralRe: listbox mass edit Pin
Ralf Meier14-Jun-23 8:46
professionalRalf Meier14-Jun-23 8:46 
GeneralRe: listbox mass edit Pin
Member Alienoiz14-Jun-23 9:40
Member Alienoiz14-Jun-23 9:40 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.