Set ListBox TopIndex : ListBox « GUI « VB.Net
Set ListBox TopIndex
Imports System
Imports System.Windows.Forms
Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1
Application.Run(form1)
End Sub
End Class
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 Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents txt As System.Windows.Forms.TextBox
Friend WithEvents pic As System.Windows.Forms.PictureBox
Friend WithEvents lstLog As System.Windows.Forms.ListBox
Friend WithEvents cmd As System.Windows.Forms.Button
Friend WithEvents Label3 As System.Windows.Forms.Label
'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.
Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
Friend WithEvents Label4 As System.Windows.Forms.Label
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.txt = New System.Windows.Forms.TextBox()
Me.Label1 = New System.Windows.Forms.Label()
Me.Label2 = New System.Windows.Forms.Label()
Me.lstLog = New System.Windows.Forms.ListBox()
Me.pic = New System.Windows.Forms.PictureBox()
Me.cmd = New System.Windows.Forms.Button()
Me.Label3 = New System.Windows.Forms.Label()
Me.GroupBox1 = New System.Windows.Forms.GroupBox()
Me.Label4 = New System.Windows.Forms.Label()
Me.GroupBox1.SuspendLayout()
Me.SuspendLayout()
'
'txt
'
Me.txt.Location = New System.Drawing.Point(156, 20)
Me.txt.Name = "txt"
Me.txt.Size = New System.Drawing.Size(192, 21)
Me.txt.TabIndex = 1
Me.txt.Text = ""
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(6, 24)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(144, 16)
Me.Label1.TabIndex = 2
Me.Label1.Text = "Test keyboard events here:"
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(20, 52)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(128, 16)
Me.Label2.TabIndex = 2
Me.Label2.Text = "Test mouse events here:"
'
'lstLog
'
Me.lstLog.Anchor = (((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right)
Me.lstLog.IntegralHeight = False
Me.lstLog.Location = New System.Drawing.Point(8, 160)
Me.lstLog.Name = "lstLog"
Me.lstLog.Size = New System.Drawing.Size(384, 212)
Me.lstLog.TabIndex = 0
'
'pic
'
Me.pic.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.pic.Location = New System.Drawing.Point(156, 48)
Me.pic.Name = "pic"
Me.pic.Size = New System.Drawing.Size(192, 48)
Me.pic.TabIndex = 3
Me.pic.TabStop = False
'
'cmd
'
Me.cmd.FlatStyle = System.Windows.Forms.FlatStyle.System
Me.cmd.Location = New System.Drawing.Point(156, 100)
Me.cmd.Name = "cmd"
Me.cmd.Size = New System.Drawing.Size(88, 28)
Me.cmd.TabIndex = 4
Me.cmd.Text = "Button1"
'
'Label3
'
Me.Label3.Location = New System.Drawing.Point(24, 104)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(64, 24)
Me.Label3.TabIndex = 5
Me.Label3.Text = "Label3"
'
'GroupBox1
'
Me.GroupBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
Or System.Windows.Forms.AnchorStyles.Right)
Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label4, Me.Label1, Me.pic, Me.txt, Me.cmd, Me.Label2})
Me.GroupBox1.FlatStyle = System.Windows.Forms.FlatStyle.System
Me.GroupBox1.Location = New System.Drawing.Point(8, 4)
Me.GroupBox1.Name = "GroupBox1"
Me.GroupBox1.Size = New System.Drawing.Size(384, 148)
Me.GroupBox1.TabIndex = 6
Me.GroupBox1.TabStop = False
'
'Label4
'
Me.Label4.Location = New System.Drawing.Point(92, 108)
Me.Label4.Name = "Label4"
Me.Label4.Size = New System.Drawing.Size(56, 16)
Me.Label4.TabIndex = 5
Me.Label4.Text = "And here:"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 14)
Me.ClientSize = New System.Drawing.Size(400, 378)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.GroupBox1, Me.Label3, Me.lstLog})
Me.Font = New System.Drawing.Font("Tahoma", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Name = "Form1"
Me.Text = "Event Tracker"
Me.GroupBox1.ResumeLayout(False)
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub pic_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles pic.MouseEnter, cmd.MouseEnter
Log("Mouse Enter")
End Sub
Private Sub pic_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pic.MouseMove
log("Mouse Move: " )
End Sub
Private Sub Log(ByVal data As String)
lstLog.Items.Add(data)
Dim ItemsPerPage As Integer = lstLog.Height \ lstLog.ItemHeight
lstLog.TopIndex = lstLog.Items.Count - ItemsPerPage
End Sub
End Class
