Imports System.IO
Imports Microsoft.Win32
'http://www.devx.com/vb2themax/Tip/19228
Public Class Form3
Inherits System.Windows.Forms.Form
Private ElencoFiles() As String
Private TipiFiles As ArrayList
#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
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'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.
Friend WithEvents lstElenco As System.Windows.Forms.ListView
Friend WithEvents clmNomeFile As System.Windows.Forms.ColumnHeader
Friend WithEvents clmDim As System.Windows.Forms.ColumnHeader
Friend WithEvents clmTipoFile As System.Windows.Forms.ColumnHeader
Friend WithEvents trvElenco As System.Windows.Forms.TreeView
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Timer1 As System.Windows.Forms.Timer
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container
Me.lstElenco = New System.Windows.Forms.ListView
Me.clmNomeFile = New System.Windows.Forms.ColumnHeader
Me.clmDim = New System.Windows.Forms.ColumnHeader
Me.clmTipoFile = New System.Windows.Forms.ColumnHeader
Me.trvElenco = New System.Windows.Forms.TreeView
Me.Button1 = New System.Windows.Forms.Button
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.SuspendLayout()
'
'lstElenco
'
Me.lstElenco.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
Me.lstElenco.Columns.AddRange(New System.Windows.Forms.ColumnHeader() {Me.clmNomeFile, Me.clmDim, Me.clmTipoFile})
Me.lstElenco.FullRowSelect = True
Me.lstElenco.Location = New System.Drawing.Point(8, 8)
Me.lstElenco.Name = "lstElenco"
Me.lstElenco.Size = New System.Drawing.Size(496, 136)
Me.lstElenco.TabIndex = 0
Me.lstElenco.View = System.Windows.Forms.View.Details
'
'clmNomeFile
'
Me.clmNomeFile.Text = "Nome File"
Me.clmNomeFile.Width = 161
'
'clmDim
'
Me.clmDim.Text = "Dimensione"
Me.clmDim.Width = 154
'
'clmTipoFile
'
Me.clmTipoFile.Text = "Tipo File"
Me.clmTipoFile.Width = 177
'
'trvElenco
'
Me.trvElenco.ImageIndex = -1
Me.trvElenco.Location = New System.Drawing.Point(8, 152)
Me.trvElenco.Name = "trvElenco"
Me.trvElenco.SelectedImageIndex = -1
Me.trvElenco.Size = New System.Drawing.Size(240, 168)
Me.trvElenco.TabIndex = 1
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(256, 152)
Me.Button1.Name = "Button1"
Me.Button1.TabIndex = 2
Me.Button1.Text = "Button1"
'
'Timer1
'
Me.Timer1.Enabled = True
Me.Timer1.Interval = 5000
'
'Form3
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(512, 325)
Me.Controls.Add(Me.Button1)
Me.Controls.Add(Me.trvElenco)
Me.Controls.Add(Me.lstElenco)
Me.Name = "Form3"
Me.Text = "Form3"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ElencoFiles = Directory.GetFiles("D:\Deploy")
Dim i As Integer
Dim Riga As ListViewItem
TipiFiles = New ArrayList
For i = 0 To ElencoFiles.Length - 1
Riga = Me.lstElenco.Items.Add(ElencoFiles(i))
Riga.SubItems.Add(New FileInfo(ElencoFiles(i)).Length)
TipiFiles.Add(GetFileDescriptionFromReg(ElencoFiles(i)))
Riga.SubItems.Add(GetFileDescriptionFromReg(ElencoFiles(i)))
Next
TipiFiles = GetUniqueValues(TipiFiles)
PopolaTreeView()
End Sub
Private Sub PopolaTreeView()
Dim i As Integer
For i = 0 To TipiFiles.Count - 1
Me.trvElenco.Nodes.Add(TipiFiles(i))
Next
End Sub
Private Function GetFileDescriptionFromReg(ByVal FileName As String) As String
Dim classname As String
Dim Reg As RegistryKey
' get the classname from the registry
'classname = Registry.ClassesRoot.GetValue(New FileInfo(FileName).Extension)
Reg = Registry.ClassesRoot.OpenSubKey(New FileInfo(FileName).Extension)
If IsNothing(Reg) = False Then
classname = Reg.GetValue("", "")
'classname = GetRegistryValue(HKEY_CLASSES_ROOT, ext, "")
If Len(classname) Then
Reg = Registry.ClassesRoot.OpenSubKey(classname)
Return (Reg.GetValue("", ""))
'GetFileDescriptionFromReg = GetRegistryValue(HKEY_CLASSES_ROOT, _
' classname, "")
End If
Else
Return ""
End If
End Function
Private Function GetUniqueValues(ByRef Elenco As ArrayList) As ArrayList
Dim Valore As String = "#"
Dim i As Integer
GetUniqueValues = New ArrayList
'Ordino l'elenco source
Elenco.Sort()
For i = 0 To Elenco.Count - 1
If Elenco(i) <> Valore Then
GetUniqueValues.Add(Elenco(i))
Valore = Elenco(i)
If Valore = Elenco(Elenco.Count - 1) Then Exit For
End If
Next
Return (GetUniqueValues)
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.lstElenco.Items.Clear()
Me.trvElenco.Nodes.Clear()
Form3_Load(Nothing, Nothing)
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Me.lstElenco.Items.Clear()
Me.trvElenco.Nodes.Clear()
Form3_Load(Nothing, Nothing)
End Sub
End Class