Use three timers : Timer « GUI « VB.Net Tutorial






Use three timers
Imports System.Windows.Forms


public class ThreeTimers
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub tmrTenthSecond_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrTenthSecond.Tick
        lblTenthSecond.Text = Now.ToString("hh:mm:ss.f")
    End Sub

    Private Sub tmrSecond_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrSecond.Tick
        lblSeconds.Text = Now.ToString("hh:mm:ss")
    End Sub

    Private Sub tmrTenSeconds_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrTenSeconds.Tick
        lblTenSeconds.Text = Now.ToString("hh:mm:ss")
    End Sub

    ' Display initial times.
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        lblTenthSecond.Text = Now.ToString("hh:mm:ss.f")
        lblSeconds.Text = Now.ToString("hh:mm:ss")
        lblTenSeconds.Text = Now.ToString("hh:mm:ss")
    End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        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.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Me.tmrTenthSecond = New System.Windows.Forms.Timer(Me.components)
        Me.tmrSecond = New System.Windows.Forms.Timer(Me.components)
        Me.tmrTenSeconds = New System.Windows.Forms.Timer(Me.components)
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.lblTenthSecond = New System.Windows.Forms.Label
        Me.lblSeconds = New System.Windows.Forms.Label
        Me.lblTenSeconds = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'tmrTenthSecond
        '
        Me.tmrTenthSecond.Enabled = True
        '
        'tmrSecond
        '
        Me.tmrSecond.Enabled = True
        Me.tmrSecond.Interval = 1000
        '
        'tmrTenSeconds
        '
        Me.tmrTenSeconds.Enabled = True
        Me.tmrTenSeconds.Interval = 10000
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(8, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(46, 13)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "1/10 sec"
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.Location = New System.Drawing.Point(8, 32)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(29, 13)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "1 sec"
        '
        'Label3
        '
        Me.Label3.AutoSize = True
        Me.Label3.Location = New System.Drawing.Point(8, 56)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(35, 13)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "10 sec"
        '
        'lblTenthSecond
        '
        Me.lblTenthSecond.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.lblTenthSecond.Location = New System.Drawing.Point(72, 8)
        Me.lblTenthSecond.Name = "lblTenthSecond"
        Me.lblTenthSecond.Size = New System.Drawing.Size(80, 16)
        Me.lblTenthSecond.TabIndex = 3
        '
        'lblSeconds
        '
        Me.lblSeconds.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.lblSeconds.Location = New System.Drawing.Point(72, 32)
        Me.lblSeconds.Name = "lblSeconds"
        Me.lblSeconds.Size = New System.Drawing.Size(80, 16)
        Me.lblSeconds.TabIndex = 4
        '
        'lblTenSeconds
        '
        Me.lblTenSeconds.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.lblTenSeconds.Location = New System.Drawing.Point(72, 56)
        Me.lblTenSeconds.Name = "lblTenSeconds"
        Me.lblTenSeconds.Size = New System.Drawing.Size(80, 16)
        Me.lblTenSeconds.TabIndex = 5
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(167, 88)
        Me.Controls.Add(Me.lblTenSeconds)
        Me.Controls.Add(Me.lblSeconds)
        Me.Controls.Add(Me.lblTenthSecond)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "UseTimer"
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents tmrTenthSecond As System.Windows.Forms.Timer
    Friend WithEvents tmrSecond As System.Windows.Forms.Timer
    Friend WithEvents tmrTenSeconds As System.Windows.Forms.Timer
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents lblTenthSecond As System.Windows.Forms.Label
    Friend WithEvents lblSeconds As System.Windows.Forms.Label
    Friend WithEvents lblTenSeconds As System.Windows.Forms.Label

End Class








14.90.Timer
14.90.1.Timer intervalTimer interval
14.90.2.Use Timer to refresh LabelUse Timer to refresh Label
14.90.3.Timer eventTimer event
14.90.4.Timer Start and StopTimer Start and Stop
14.90.5.Scrolling Text by TimerScrolling Text by Timer
14.90.6.Use three timersUse three timers
14.90.7.Set up an event handler for the Timer.Elapsed event, creates a timer, and starts the timer