Option Strict On
Imports System.IO
Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub
    Friend WithEvents DrivesList As System.Windows.Forms.ComboBox
    Friend WithEvents FoldersList As System.Windows.Forms.ListBox
    Friend WithEvents FilesList As System.Windows.Forms.ListBox

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.Container

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.FoldersList = New System.Windows.Forms.ListBox()
        Me.FilesList = New System.Windows.Forms.ListBox()
        Me.DrivesList = New System.Windows.Forms.ComboBox()
        Me.SuspendLayout()
        '
        'FoldersList
        '
        Me.FoldersList.Font = New System.Drawing.Font("Verdana", 9!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.FoldersList.ItemHeight = 14
        Me.FoldersList.Location = New System.Drawing.Point(8, 36)
        Me.FoldersList.Name = "FoldersList"
        Me.FoldersList.Size = New System.Drawing.Size(216, 172)
        Me.FoldersList.TabIndex = 1
        '
        'FilesList
        '
        Me.FilesList.Font = New System.Drawing.Font("Verdana", 9!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.FilesList.ItemHeight = 14
        Me.FilesList.Location = New System.Drawing.Point(232, 36)
        Me.FilesList.Name = "FilesList"
        Me.FilesList.Size = New System.Drawing.Size(272, 172)
        Me.FilesList.TabIndex = 2
        '
        'DrivesList
        '
        Me.DrivesList.DropDownWidth = 232
        Me.DrivesList.Font = New System.Drawing.Font("Verdana", 9!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.DrivesList.Location = New System.Drawing.Point(8, 8)
        Me.DrivesList.Name = "DrivesList"
        Me.DrivesList.Size = New System.Drawing.Size(112, 22)
        Me.DrivesList.TabIndex = 0
        Me.DrivesList.Text = "ComboBox1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(512, 213)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.FilesList, Me.FoldersList, Me.DrivesList})
        Me.Name = "Form1"
        Me.Text = "Custom Explorer"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, _
                           ByVal e As System.EventArgs) _
                        Handles MyBase.Load
        ShowAllDrives()
        DrivesList.SelectedIndex = 1
        Me.Text = Directory.GetCurrentDirectory
    End Sub

    Sub ShowAllDrives()
        Dim drives() As String
        drives = Directory.GetLogicalDrives()
        DrivesList.Items.Clear()
        'Dim aDrive As String
        'For Each aDrive In drives
        '    DrivesList.Items.Add(aDrive)
        'Next
        DrivesList.Items.AddRange(drives)
    End Sub

    Sub ShowFolders(ByVal drive As String)
        Dim folders() As String
        Try
            folders = Directory.GetDirectories(drive)
        Catch exception As Exception
            MsgBox(exception.Message)
            Exit Sub
        End Try

        FoldersList.Items.Clear()
        FoldersList.Items.AddRange(New DirectoryInfo(drive).GetDirectories)
        Directory.SetCurrentDirectory(drive)
        Me.Text = Directory.GetCurrentDirectory
    End Sub

    Sub ShowFilesInFolder()
        FilesList.Items.Clear()
        FilesList.Items.AddRange(Directory.GetFiles(Directory.GetCurrentDirectory))
    End Sub

    Private Sub DrivesList_SelectedIndexChanged(ByVal sender As System.Object, _
                                                ByVal e As System.EventArgs) _
                                                Handles DrivesList.SelectedIndexChanged
        ShowFolders(DrivesList.Text)
    End Sub

    Private Sub FoldersList_SelectedIndexChanged(ByVal sender As System.Object, _
                                                 ByVal e As System.EventArgs) _
                                                 Handles FoldersList.SelectedIndexChanged

        Dim DI As DirectoryInfo
        Select Case FoldersList.Text
            Case ""
                MsgBox("Please select a folder to expand")
                Exit Sub
            Case ".."
                Directory.SetCurrentDirectory("..")
            Case Else
                Directory.SetCurrentDirectory(FoldersList.Text)
                Me.Text = Directory.GetCurrentDirectory
        End Select

        Dim selectedFolder As String = FoldersList.Text
        Dim Dr As String = Directory.GetCurrentDirectory
        ShowFolders(Dr)
        If Dr <> Directory.GetDirectoryRoot(selectedFolder) Then _
            FoldersList.Items.Insert(0, "..")
        ShowFilesInFolder()
    End Sub

    Private Sub FilesList_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FilesList.SelectedIndexChanged
        Dim FI As New FileInfo(FilesList.Text)
        Dim Msg As New System.Text.StringBuilder()

        Msg.Append("اسم الملفّ: " & FI.Name & vbCrLf)
        Msg.Append("الحجم: " & FI.Length.ToString & vbCrLf)
        Msg.Append("الامتداد: " & FI.Extension & vbCrLf)
        Msg.Append("وقت إنشائه: " & FI.CreationTime.ToString & vbCrLf)
        Msg.Append("وقت آخر قراءة: " & FI.LastAccessTime.ToShortDateString)
        MsgBox(Msg.ToString, MsgBoxStyle.Information Or MsgBoxStyle.OKOnly Or MsgBoxStyle.MsgBoxRtlReading Or MsgBoxStyle.MsgBoxRight, "")
    End Sub

End Class