VB.Net Tutorial/GUI Applications/Explore

Explore UI

<source lang="vbnet">Imports System.Windows.Forms public class TreeViewListView

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class

Public Class Form1

   Inherits System.Windows.Forms.Form

1. 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.ruponentModel.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 TreeView1 As System.Windows.Forms.TreeView
 Friend WithEvents Splitter1 As System.Windows.Forms.Splitter
 Friend WithEvents ListView1 As System.Windows.Forms.ListView
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

Me.ruponents = New System.ruponentModel.Container() Me.TreeView1 = New System.Windows.Forms.TreeView() Me.Splitter1 = New System.Windows.Forms.Splitter() Me.ListView1 = New System.Windows.Forms.ListView() Me.SuspendLayout() " "TreeView1 " Me.TreeView1.Dock = System.Windows.Forms.DockStyle.Left Me.TreeView1.Name = "TreeView1" Me.TreeView1.Nodes.AddRange(New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Letter", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("a", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("z"), New System.Windows.Forms.TreeNode("b")}), New System.Windows.Forms.TreeNode("c", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("d"), New System.Windows.Forms.TreeNode("e")})})}) Me.TreeView1.Size = New System.Drawing.Size(121, 273) Me.TreeView1.TabIndex = 0 " "Splitter1 " Me.Splitter1.Location = New System.Drawing.Point(121, 0) Me.Splitter1.Name = "Splitter1" Me.Splitter1.Size = New System.Drawing.Size(3, 273) Me.Splitter1.TabIndex = 1 Me.Splitter1.TabStop = False " "ListView1 " Me.ListView1.Dock = System.Windows.Forms.DockStyle.Fill Me.ListView1.Location = New System.Drawing.Point(124, 0) Me.ListView1.Name = "ListView1" Me.ListView1.Size = New System.Drawing.Size(168, 273) Me.ListView1.TabIndex = 2 Me.ListView1.View = System.Windows.Forms.View.List " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(292, 273) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.ListView1, Me.Splitter1, Me.TreeView1}) Me.Name = "Form1" Me.Text = "Vehicle Hierarchy" Me.ResumeLayout(False)

  End Sub

1. End Region

 Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
        select case e.Node.Text
           case "a"
              listView1.Clear()
              listView1.Items.Add("a",3)
              listView1.Items.Add("b", 4)
              listView1.Items.Add("c", 6)
           case "b"
              listView1.Clear()
              listView1.Items.Add("a", 1)
              listView1.Items.Add("b", 2)
              listView1.Items.Add("c", 5)
        end select
 End Sub
 Private Sub ListView1_ItemActivate(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListView1.ItemActivate
     dim strItem as String = listView1.FocusedItem.Text
     Console.WriteLine(strItem)
 End Sub

End Class</source>

File Explore Layout

<source lang="vbnet">Imports System.Windows.Forms public class ExplorerLayoutDemo

  public Shared Sub Main
       Application.Run(New ExplorerLayout)
  End Sub

End class Public Class ExplorerLayout

   Inherits System.Windows.Forms.Form

1. 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.ruponentModel.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 TreeView1 As System.Windows.Forms.TreeView
   Friend WithEvents Splitter1 As System.Windows.Forms.Splitter
   Friend WithEvents ListView1 As System.Windows.Forms.ListView
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Dim ListViewItem1 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem("Item 1")
       Dim ListViewItem2 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem("Item 2")
       Dim ListViewItem3 As System.Windows.Forms.ListViewItem = New System.Windows.Forms.ListViewItem("Item 3")
       Me.TreeView1 = New System.Windows.Forms.TreeView
       Me.Splitter1 = New System.Windows.Forms.Splitter
       Me.ListView1 = New System.Windows.Forms.ListView
       Me.SuspendLayout()
       "
       "TreeView1
       "
       Me.TreeView1.Dock = System.Windows.Forms.DockStyle.Left
       Me.TreeView1.ImageIndex = -1
       Me.TreeView1.Location = New System.Drawing.Point(0, 0)
       Me.TreeView1.Name = "TreeView1"
       Me.TreeView1.Nodes.AddRange(New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node0", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node1", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node2"), New System.Windows.Forms.TreeNode("Node6")}), New System.Windows.Forms.TreeNode("Node3"), New System.Windows.Forms.TreeNode("Node4", New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("Node5")})})})
       Me.TreeView1.SelectedImageIndex = -1
       Me.TreeView1.Size = New System.Drawing.Size(121, 266)
       Me.TreeView1.TabIndex = 0
       "
       "Splitter1
       "
       Me.Splitter1.Location = New System.Drawing.Point(121, 0)
       Me.Splitter1.Name = "Splitter1"
       Me.Splitter1.Size = New System.Drawing.Size(3, 266)
       Me.Splitter1.TabIndex = 1
       Me.Splitter1.TabStop = False
       "
       "ListView1
       "
       Me.ListView1.Dock = System.Windows.Forms.DockStyle.Fill
       Me.ListView1.Items.AddRange(New System.Windows.Forms.ListViewItem() {ListViewItem1, ListViewItem2, ListViewItem3})
       Me.ListView1.Location = New System.Drawing.Point(124, 0)
       Me.ListView1.Name = "ListView1"
       Me.ListView1.Size = New System.Drawing.Size(168, 266)
       Me.ListView1.TabIndex = 2
       Me.ListView1.View = System.Windows.Forms.View.List
       "
       "ExplorerLayout
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(292, 266)
       Me.Controls.Add(Me.ListView1)
       Me.Controls.Add(Me.Splitter1)
       Me.Controls.Add(Me.TreeView1)
       Me.Name = "ExplorerLayout"
       Me.Text = "ExplorerLayout"
       Me.ResumeLayout(False)
   End Sub

1. End Region

End Class</source>