Timer Start and Stop : Timer « GUI « VB.Net Tutorial

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VB.Net Tutorial » GUI » Timer 




Timer Start and Stop
Imports System.Windows.Forms

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

Public Class Form1
    Inherits System.Windows.Forms.Form

    Public Sub New()
        MyBase.New()

        InitializeComponent()
    End Sub

    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is NothingThen
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    Private components As System.ComponentModel.IContainer

    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 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.Label1 = New System.Windows.Forms.Label
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif"15.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(3232)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(21624)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "Scrolling Text"
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(2480)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(7224)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Start"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(11280)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(6424)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "Stop"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(19280)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(7224)
        Me.Button3.TabIndex = 3
        Me.Button3.Text = "Exit"
        '
        'Timer1
        '
        Me.Timer1.Interval = 300
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(513)
        Me.ClientSize = New System.Drawing.Size(292150)
        Me.Controls.Add(Me.Button3)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "Scroll Text"
        Me.ResumeLayout(False)

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles Button1.Click
        Do While Label1.Text.Length < 13
            Label1.Text = Label1.Text & " "
        Loop
        Label1.AutoSize = True
        Timer1.Start()
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles Button2.Click
        Timer1.Stop()
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgsHandles Button3.Click
        End
    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgsHandles Timer1.Tick
        Label1.Text = Microsoft.VisualBasic.Right(Label1.Text, 1& Microsoft.VisualBasic.Left(Label1.Text, Label1.Text.Length - 1)
    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
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