Use Timer to refresh Label : Timer « GUI « VB.Net Tutorial






Use Timer to refresh Label
Imports System.Windows.Forms

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected 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.CurrentTime = New System.Windows.Forms.Label
        Me.ClockTimer = New System.Windows.Forms.Timer(Me.components)
        Me.SuspendLayout()
        '
        'CurrentTime
        '
        Me.CurrentTime.AutoSize = True
        Me.CurrentTime.Location = New System.Drawing.Point(8, 8)
        Me.CurrentTime.Name = "CurrentTime"
        Me.CurrentTime.Size = New System.Drawing.Size(39, 13)
        Me.CurrentTime.TabIndex = 0
        Me.CurrentTime.Text = "Label1"
        '
        'ClockTimer
        '
        Me.ClockTimer.Enabled = True
        Me.ClockTimer.Interval = 1000
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 35)
        Me.Controls.Add(Me.CurrentTime)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.Name = "Form1"
        Me.Text = "Clock Timer"
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents CurrentTime As System.Windows.Forms.Label
    Friend WithEvents ClockTimer As System.Windows.Forms.Timer

End Class
Public Class Form1
    Private Sub ClockTimer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ClockTimer.Tick
        CurrentTime.Text = Now.ToLongTimeString
    End Sub
End Class


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